Cleanchem Laboratories LLP Navi Mumbai, Maharashtra

Zolmitriptan Working Standard Molecular Formula: C16H21N3O2 Molecular Weight: 287.36 Zolmitriptan Impurity - A,B,C,D,E,F,G..... Zolmitriptan Related Product - A,B,C,D,E,F,G..... N-Desmethyl Zolmitriptan CAS No. 139264-35-0 C15H19N3O2 M.W. 273.34 3-Des[2-(dimethylamino)ethyl]-zolmitriptan 3-Acetic acid CAS No. 251451-31-7 C14H14N2O4 M.W. 274.28 Didesmethyl Zolmitriptan CAS No. 139264-15-6 C14H17N3O2 M.W. 259.31 Zolmitriptan N-Oxide CAS No. 251451-30-6 C16H21N3O3 M.W. 303.36 Zolmitriptan Impurity 1 CAS No. 187975-62-8 C10H13N3O2 M.W. 207.23 (R)-Zolmitriptan CAS No. 139264-24-7 C16H21N3O2 M.W. 287.36 Zolmitriptan Impurity 2 C16H21N3O3 M.W. 303.36 rac-3-Des[2-(dimethylamino)ethyl]-Zolmitriptan 3-Acetic Acid-d3 CAS No. 1432902-38-9 (non-labelled) C14H11D3N2O4 M.W. 277.29 Zolmitriptan Related Compound F CAS No. 1350928-05-0 C38H53N7O4 M.W. 671.89 Zolmitriptan Impurity 3 C16H21N3O3 M.W. 303.36 Zolmitriptan Impurity 4 C16H21N3O3 M.W. 303.36 Zolmitriptan Impurity 5 C17H23N3O3 M.W. 317.39 Z-0215 Zolmitriptan Impurity 5 Zolmitriptan Impurity 6 C17H21N3O4 M.W. 331.37 Z-0216 Zolmitriptan Impurity 6 Zolmitriptan USP Related Compound B CAS No. 139264-69-0 C15H23N3O M.W. 261.37 Z-0217 Zolmitriptan USP Related Compound B Zolmitriptan USP Related Compound B-d6 CAS No. 139264-69-0 (non-labelled) C15H17D6N3O M.W. 267.41 Z-0218 Zolmitriptan USP Related Compound B-d6

Zidovudine Working Standard CAS No.: 30516-87-1 Molecular Formula: C10H13N5O4 Molecular Weight: 267.25 Zidovudine Impurity - A,B,C,D,E,F,G..... Zidovudine Related Product - A,B,C,D,E,F,G..... Zidovudine-glucuronide-13C6 C16H21N5O10 M.W. 449.30 Zidovudine EP Impurity B CAS No. 25526-94-7 C10H13ClN2O4 M.W. 260.68 Zidovudine USP Impurity G CAS No. 148665-49-0 C20H25N7O8 M.W. 491.46 Zidovudine Related Compound A CAS No. 3065-17-5 C10H12N2O4 M.W. 224.22 Zidovudine Impurity 1 C10H13N5O4 M.W. 267.25 Zidovudine Impurity F CAS No. 16053-52-4 C10H14N2O5 M.W. 242.23 Zidovudine Impurity 2 CAS No. 29706-84-1 C29H27N5O4 M.W. 509.57

Zaleplon Working Standard CAS No.: 151319-34-5 Molecular Formula: C17H15N5O Molecular Weight: 305.34 Zaleplon Impurity - A,B,C,D,E,F,G..... Zaleplon Related Product - A,B,C,D,E,F,G..... Zaleplon related compound B C17H15N5O M.W. 305.34 Zaleplon related compound A CAS No. 96605-66-2 C15H20N2O2 M.W. 260.34

Warfarin Working Standard CAS No.: 81-81-2 Molecular Formula: C19H16O4 Molecular Weight: 308.34 Warfarin Impurity - A,B,C,D,E,F,G..... Warfarin Related Product - A,B,C,D,E,F,G..... 7-Hydroxy Warfarin CAS No. 17834-03-6 C19H16O5 M.W. 324.34 (S)-7-Hydroxy Warfarin CAS No. 63740-81-8 C19H16O5 M.W. 324.34 7-Hydroxy Warfarin-d5 CAS No. 94820-65-2 C19H11O5D5 M.W. 329.37 (R)-Warfarin CAS No. 5543-58-8 C19H16O4 M.W. 308.34 (S)-Warfarin CAS No. 5543-57-7 C19H16O4 M.W. 308.34 Dehydro Warfarin C19H14O4 M.W. 306.32 (S)-Warfarin-d5 C19H11O4D5 M.W. 313.37 (R)-Warfarin-d5 C19H11O4D5 M.W. 313.37 6-Hydroxy Warfarin CAS No. 17834-02-5 C19H16O5 M.W. 324.34 6-Hydroxy Warfarin-d5 C19H11O5D5 M.W. 329.37 (R)-7-Hydroxy Warfarin CAS No. 63740-76-1 C19H16O5 M.W. 324.34 Warfarin Impurity (Benzalacetone) CAS No. 122-57-6 C10H10O M.W. 146.19 8-Hydroxy Warfarin CAS No. 17834-04-7 C19H16O5 M.W. 324.34 Warfarin Impurity 1 CAS No. 55901-61-6 C13H14O M.W. 186.26 (S)-8-Hydroxy Warfarin CAS No. 63740-82-9 C19H16O5 M.W. 324.34 (S)-6-Hydroxy Warfarin CAS No. 63740-80-7 C19H16O5 M.W. 324.34 (R)-6-Hydroxy Warfarin CAS No. 63740-75-0 C19H16O5 M.W. 324.34 (R)-8-Hydroxy Warfarin CAS No. 63740-77-2 C19H16O5 M.W. 324.33

Vigabatrin Working Standard Formula C6H11NO2 Molar mass 129.157 Vigabatrin Impurity - A,B,C,D,E,F,G..... Vigabatrin Related Product - A,B,C,D,E,F,G..... Vigabatrin HCl CAS No. 1391054-02-6 C6H11NO2. HCl M.W. 129.16 36.46 Vigabatrin-13C-d2 HCl CAS No. 1391054-02-6 (non-labelled) 13C C5H9D2NO2. HCl M.W. 132.16 36.46 Vigabatrin EP Impurity A CAS No. 7529-16-0 C6H9NO M.W. 111.14 Vigabatrin EP Impurity B CAS No. 1379504-35-4 C6H11NO2 M.W. 129.16 Vigabatrin EP Impurity C (Mixture of Diastereomers) CAS No. 71107-19-2 C7H10N2O2 M.W. 154.17 Vigabatrin EP Impurity D CAS No. 56-12-2 C4H9NO2 M.W. 103.12 Vigabatrin EP Impurity E CAS No. 1378466-25-1 C7H11NO4 M.W. 173.17 Vigabatrin EP Impurity F HCl (Mixture of Diastereomers) CAS No. 794466-81-2 (free base) C12H20N2O3. HCl M.W. 240.30 36.46 Vigabatrin Impurity 1 C8H11NO3 M.W. 169.18 Vigabatrin Impurity 2 C12H17NO4 M.W. 239.27

Venlafaxine Working Standard Formula C17H27NO2 Molar mass 277.402 Venlafaxine Impurity - A,B,C,D,E,F,G..... Venlafaxine Related Product - A,B,C,D,E,F,G..... Venlafaxine HCl CAS No. 99300-78-4 C17H27NO2. HCl M.W. 277.41 36.46 O-Desmethyl-N,N-didesmethyl venlafaxine HCl C14H21NO2.HCl M.W. 271.79 Desvenlafaxine (O-Desmethyl Venlafaxine) CAS No. 93413-62-8 C16H25NO2 M.W. 263.38 Venlafaxine EP Impurity D HCl (N-Desmethyl Venlafaxine HCl) CAS No. 93413-90-2 C16H25NO2. HCl M.W. 263.38 36.46 N,O-Didesmethyl Venlafaxine CAS No. 135308-74-6 C15H23NO2 M.W. 249.35 O-Desmethyl Venlafaxine Glucuronide (Mixture of Isomers) CAS No. 1021933-98-1 C22H33NO8 M.W. 439.51 O-Desmethyl Venlafaxine-d10 CAS No. 1062607-49-1 C16H15NO2D10 M.W. 273.44 Venlafaxine EP Impurity F HCl CAS No. 93413-79-7 C17H25NO. HCl M.W. 259.39 36.46 Venlafaxine Impurity C HCl (N,N-Didesmethyl Venlafaxine HCl) CAS No. 130198-05-9 C15H23NO2. HCl M.W. 249.36 36.46 Descyclohexanol Venlafaxine HCl CAS No. 50822-98-5 C11H17NO. HCl M.W. 179.26 36.46 Venlafaxine Impurity 5 CAS No. 1346600-77-8 C13H19NO3 M.W. 237.30 Venlafaxine Related Compound 2 (4-(1-Cyclohexyl-2-(dimethylamino)ethyl)phenol) C16H25NO M.W. 247.38 Venlafaxine Related Compound 3 (R-4-(3-Methyl-1-oxa-azaspiro[5,50undecan-5-yl]phenol)) C16H23NO2 M.W. 261.37

Velpatasvir Working Standard CAS No.: 1377049-84-7 Molecular Formula: C49H54N8O8 Molecular Weight: 883.02 Velpatasvir Impurity - A,B,C,D,E,F,G..... Velpatasvir Related Product - A,B,C,D,E,F,G..... Velpatasvir Impurity 1 C47H52N8O6 M.W. 824.98 Velpatasvir Impurity 2 C42H43N7O5 M.W. 725.85 Velpatasvir-13C2, d6 CAS No. 1377049-84-7 (non-labelled) 13C C472H48D6N8O8 M.W. 891.04

Valsartan Working Standard CAS No.: 137862-53-4 Molecular Formula: C24H29N5O3 Molecular Weight: 435.53 Valsartan Impurity - A,B,C,D,E,F,G..... Valsartan Related Product - A,B,C,D,E,F,G..... Valery 4-Hydroxy Valsartan CAS No. 188259-69-0 C24H29N5O4 M.W. 451.53 Valsartan Related Compound A (ent-Valsartan) CAS No. 137862-87-4 C24H29N5O3 M.W. 435.53 Valsartan Related Compound B (Valsartan EP Impurity C) CAS No. 952652-79-8 C23H27N5O3 M.W. 421.50 Valsartan Related Compound C CAS No. 137863-20-8 C31H35N5O3 M.W. 525.66 Valsartan Methyl Ester CAS No. 137863-17-3 C25H31N5O3 M.W. 449.56 Valsartan Benzyl Ester N1-Trityl Analog CAS No. N/A C50H49N5O3 M.W. 767.98 Valsartan Benzyl Ester N2-Trityl Analog CAS No. N/A C50H49N5O3 M.W. 767.98 Valsartan Desvaleryl Impurity CAS No. 676129-92-3 C19H21N5O2 M.W. 351.41 Valsartan Desvaleryl Methyl Ester CAS No. 1111177-24-2 C20H23N5O2 M.W. 365.44 Valsartan Ethyl Ester CAS No. 1111177-30-0 C26H33N5O3 M.W. 463.58 Valsartan Isopropyl Ester CAS No. N/A C27H35N5O3 M.W. 477.61 Valsartan N1-Trityl Impurity CAS No. N/A C43H43N5O3 M.W. 677.85 Valsartan N2-Trityl Impurity CAS No. N/A C43H43N5O3 M.W. 677.85 Valsartan N1-Trityl R-Isomer CAS No. N/A C43H43N5O3 M.W. 677.85 Valsartan N2-Trityl R-Isomer CAS No. N/A C43H43N5O3 M.W. 677.85 Valsartan Impurity 1 C13H8BrN M.W. 258.12

Valproic acid Working Standard CAS No.: 99-66-1 Molecular Formula: C8H16O2 Molecular Weight: 144.22 Valproic acid Impurity - A,B,C,D,E,F,G..... Valproic acid Related Product - A,B,C,D,E,F,G..... Valproic acid-acyl-â-D-glucuronide C14H24O8 M.W. 320.34 Valproic Acid EP Impurity J CAS No. 5340-48-7 C11H21N M.W. 167.30 Valproic Acid EP Impurity B CAS No. 20225-24-5 C7H14O2 M.W. 130.19 Valproic Acid EP Impurity C CAS No. 62391-99-5 C8H16O2 M.W. 144.21 Valproic Acid related compound A C8H12O2 M.W. 140.18 Valproic Acid related compound B C8H16O2 M.W. 144.22 Valproic Acid Impurity F CAS No. N/A C9H18O2 M.W. 158.24 Valproic Acid EP Impurity K CAS No. 5343-52-2 C8H16O2 M.W. 144.21 Valproic Acid EP Impurity I CAS No. 13310-75-3 C8H15N M.W. 125.22 Valproic Acid EP Impurity G CAS No. 52061-73-1 C11H23NO M.W. 185.31 Valproic Acid Impurity ((E)-2-Propyl-2-Pentenoic Acid) CAS No. N/A C8H14NO2 M.W. 142.20 Glyceryl Valproate Impurity 1 CAS No. 77656-37-2 C11H22O4 M.W. 218.30 Glyceryl Valproate Impurity 2 CAS No. 77656-46-3 C11H22O4 M.W. 218.30 Valproic Acid EP Impurity D CAS No. 52061-75-3 C11H22O2 M.W. 186.30 Propyl Valpronate CAS No. 112229-60-4 C11H22O2 M.W. 186.30 Valproic Acid EP Impurity L CAS No. 97-61-0 C6H12O2 M.W. 116.16

Valganciclovir Working Standard Formula C14H22N6O5 Molar mass 354.362 Valganciclovir Impurity - A,B,C,D,E,F,G..... Valganciclovir Related Product - A,B,C,D,E,F,G..... O-Acetyl N-Benzyloxycarbonyl Valganciclovir CAS No. 194159-22-3 C24H30N6O8 M.W. 530.54 Valganciclovir HCl CAS No. 175865-60-8 C14H22N6O5 M.W. 354.37 Valganciclovir-d5 (Mixture of Diastetromers) CAS No. 175865-60-8 (non-labelled) C14H17D5N6O5 M.W. 359.40 N-Carbobenzyloxy-L-valinyl-ganciclovir CAS No. 194154-40-0 C22H28N6O7 M.W. 488.50 N-(L-Valyl) Valganciclovir Hydrochloride C19H31N7O6 . HCl M.W. 453.50 36.46 N-Methyl Valganciclovir Hydrochloride CAS No. 1401562-16-0 C15H24N6O5 . HCl M.W. 368.40 36.46 D-Valganciclovir Hydrochloride CAS No. 1393911-57-3 C14H22N6O5 . HCl M.W. 354.37 36.46 Valganciclovir Impurity 1 (S, S-Isovalganciclovir Impurity) CAS No. 1401562-13-7 C14H22N6O5. HCl M.W. 354.37 36.46 Valganciclovir Impurity 2 HCl (Mixture of Tautomeric Isomers) C14H22N6O5. HCl M.W. 354.37 36.46 Valganciclovir Impurity D C14H22N6O5 . HCl M.W. 354.37 36.46 Valganciclovir Impurity C CAS No. 1202645-50-8 C7H9N5O2 M.W. 195.18 Valganciclovir-d8 (Mixture of Diastereomers) CAS No. 175865-60-8 (non-labelled) C14H14N6O5D8 M.W. 362.42 Valganciclovir Dimer Stereoisomer A, B, C C29H44N12O10 M.W. 720.75 Valganciclovir Related Compound G C15H24N6O6 M.W. 384.40

Valacyclovir Working Standard Formula C13H20N6O4 Molar mass 324.336 Valacyclovir Impurity - A,B,C,D,E,F,G..... Valacyclovir Related Product - A,B,C,D,E,F,G..... Valaciclovir EP Impurity P CAS No. 1356019-51-6 C27H40N12O8 M.W. 660.70 Valacyclovir Related Compound E C21H26N6O6 M.W. 458.48 Valacyclovir HCl CAS No. 124832-27-5 C13H20N6O4 HCl M.W. 324.34 36.46 Valacyclovir USP Related Compound F CAS No. 86150-61-0 C7H15NO3. C7H8O3S M.W. 161.20 172.20 Valacyclovir Impurity J CAS No. 142963-63-1 C14H22N6O4 M.W. 338.37 Valacyclovir Impurity N C19H25N11O5 M.W. 487.48 Valacyclovir Related Compound C CAS No. N/A C14H22N6O4 HCl M.W. 338.37 36.46 Valaciclovir EP Impurity K C14H18N10O4 M.W. 390.36 Valaciclovir EP Impurity O C22H33N11O7 M.W. 563.58 Valacyclovir Impurity Q C19H25N11O5 M.W. 487.48 Valacyclovir Impurity 1 CAS No. 172529-93-0 C12H14ClN5O4 M.W. 327.73 Valaciclovir EP Impurity M CAS No. 847670-62-6 C14H20N6O5 M.W. 352.35 Valaciclovir EP Impurity H HCl CAS No. 84499-64-9 (free base) C11H16N6O4. HCl M.W. 296.29 36.46 Valacyclovir Impurity 2 CAS No. 67429-12-3 C7H12O5 M.W. 176.17 Valacyclovir Impurity 3 CAS No. 2480-23-1 C6H13NO2 M.W. 131.18

Trospium chloride Working Standard CAS No.: 10405-02-4 Molecular Formula: C25H30NO3. Cl Molecular Weight: 392.52 35.45 Trospium chloride Impurity - A,B,C,D,E,F,G..... Trospium chloride Related Product - A,B,C,D,E,F,G..... Trospium Impurity A C14H12O3 M.W. 228.25 Trospium Impurity B C21H23NO3 M.W. 337.42 Trospium EP Impurity C C11H20NO. Cl M.W. 182.29 35.45 Trospium impurity D (Benzilide) CAS No. 467-32-3 C28H20O4 M.W. 420.47 Dehydro Trospium Chloride CAS No. 113922-55-7 C25H28NO3. Cl M.W. 390.51 35.45 Trospium EP Impurity C-d8 C11H12NOD8. Cl M.W. 190.34 35.45 Dehydro Trospium Chloride-d10 CAS No. 113922-55-7 (non-labelled) C25H18NO3D10. Cl M.W. 400.57 35.45

Tropicamide Working Standard CAS No.: 1508-75-4 Molecular Formula: C17H20N2O2 Molecular Weight: 284.36 Tropicamide Impurity - A,B,C,D,E,F,G..... Tropicamide Related Product - A,B,C,D,E,F,G..... Tropicamide Related Compound A CAS No. 33403-97-3 C8H12N2 M.W. 136.19 Tropicamide Related Compound B CAS No. 57322-50-6 C17H18N2O M.W. 266.34 Tropicamide Related Compound C CAS No. 529-64-6 C9H10O3 M.W. 166.17 Tropicamide Related Compound D CAS No. 103-82-2 C8H8O2 M.W. 136.15

Trimetazidine Working Standard Formula C14H22N2O3 Molar mass 266.336 Trimetazidine Impurity - A,B,C,D,E,F,G..... Trimetazidine Related Product - A,B,C,D,E,F,G..... Trimetazidine DiHCl CAS No. 13171-25-0 C14H22N2O3. 2 HCl M.W. 266.34 2 36.46 Trimetazidine Impurity A CAS No. 52146-35-7 C14H22N2O3 M.W. 266.34 Trimetazidine Impurity B CAS No. 1257-19-8 C24H34N2O6 M.W. 446.55 Trimetazidine EP Impurity C CAS No. 2103-57-3 C10H12O4 M.W. 196.20 Trimetazidine Impurity D CAS No. 71989-96-3 C10H14O4 M.W. 198.22 Trimetazidine Impurity E DiHCl CAS No. 356083-64-2 (free base) C14H22N2O3. 2 HCl M.W. 266.34 2 36.46 Trimetazidine Impurity F DiHCl CAS No. 113698-83-2 C14H22N2O3. 2 HCl M.W. 266.34 2 36.46 Trimetazidine EP Impurity G CAS No. 110-85-0 C4H10N2 M.W. 86.14 Trimetazidine Impurity H CAS No. 53531-01-4 C17H26N2O5 M.W. 338.41 Trimetazidine Impurity I DiHCl CAS No. 53960-20-6 C15H24N2O3. 2 HCl M.W. 280.37 2 36.46 N-Formyl Trimetazidine HCl CAS No. 879646-17-0 C15H22N2O4. HCl M.W. 294.35 36.46 Trimetazidine N-Oxide DiHCl C14H22N2O4. 2 HCl M.W. 282.34 2 36.46

Trelagliptin Working Standard Trelagliptin Impurity - A,B,C,D,E,F,G..... Trelagliptin Related Compounds - A,B,C,D,E,F,G..... Trelagliptin Impurity 1 C40H42F2N10O6 M.W. 796.84 Trelagliptin Impurity 2 C18H20FN5O2 M.W. 357.39 Trelagliptin Impurity 3 C18H22FN5O3 M.W. 375.41 Trelagliptin Impurity 4 C23H31N7O2 M.W. 437.55 Trelagliptin Impurity 5 C22H24FN5O5 M.W. 457.47 Trelagliptin Impurity 6 C18H13ClFN5O4 M.W. 417.79 Trelagliptin Impurity 7 CAS No. N/A C18H20FN5O2 M.W. 357.39 Trelagliptin Impurity 8 CAS No. N/A C18H20FN5O2 M.W. 357.39 Trelagliptin Impurity 9 C21H13ClF2N4O2 M.W. 426.81 Trelagliptin Impurity 10 C23H24FN7O4 M.W. 481.49 Trelagliptin Impurity 11 C13H11ClFN3O3 M.W. 311.70 Trelagliptin Impurity 12 C13H10ClFN2O4 M.W. 312.69 Trelagliptin Impurity 13 C13H9ClFN3O2 M.W. 293.69 Trelagliptin Impurity 14 CAS No. 2565-47-1 C5H6N2O3 M.W. 142.12 Trelagliptin Impurity 15 C36H39FN10O4 M.W. 694.77 Trelagliptin Impurity 16 C31H28F2N8O4 M.W. 614.62 Trelagliptin Succinate CAS No. 1029877-94-8 C18H20FN5O2. C4H6O4 M.W. 357.39 118.09 Trelagliptin Related Compound A Succinate C18H20FN5O2. C4H6O4 M.W. 357.39 118.09 Trelagliptin Succinate Related Compound B C18H20FN5O2 . C4H6O4 M.W. 357.39 118.09 Trelagliptin Impurity 17 C11H20N2O2 M.W. 212.29 Trelagliptin Impurity 18 C10H20N2O M.W. 184.28 Trelagliptin Impurity 19 C21H14F2N4O3 M.W. 408.36

To ensure maximum quality retention, we package our products in industrial-grade packaging materials that can brave mechanical damages and logistical jostling. Additionally, they are labeled to impart product information. With our wide connectivity, trustworthy shipping facilities, we are flexible in delivering the product basket to the clientele within the dedicated time.   Tofacitinib Maleate  working standardTofacitinib  Impurity A, B, C, D, E, F, G, H........Tofacitinib Related compound A, B, C, D, E, F, G, H.......Tofacitinib Citrate CAS No. 540737-29-9 C16H20N6O. C6H8O7 M.W. 312.38 192.13 Tofacitinib Impurity B CAS No. 1092578-48-7 C16H20N6O M.W. 312.38   Tofacitinib Impurity (N-Des-(2-Cyanide-acetyl)-(3R,4S)) CAS No. N/A C13H19N5 M.W. 245.33 Tofacitinib Related Compound 2 HCl CAS No. 1629858-78-1 (free base) C10H17N3O. HCl M.W. 195.27 36.46 Tofacitinib related compound 5 C13H19N5 M.W. 245.33 Tofacitinib Related Compound 9 C34H45N7 M.W. 551.78 rac-Tofacitinib (Mixture of Diastereomers) CAS No. 344418-92-4 C16H20N6O M.W. 312.38 Tofacitinib Impurity J CAS No. N/A C14H22N2 2HCl M.W. 218.34 2x36.46 Tofacitinib Impurity M CAS No. 477600-74-1 C13H19N5 M.W. 245.33 Tofacitinib Impurity P CAS No. 1252883-90-1 C20H25N5 M.W. 335.46 Tofacitinib Related Compound 22 C27H31N5O2S M.W. 489.64 Tofacitinib Impurity V CAS No. N/A C16H19ClN6O M.W. 346.82 Tofacitinib Impurity Y CAS No. N/A C14H21N5 M.W. 259.36 Tofacitinib Related Compound 12 CAS No. N/A C20H25N5 M.W. 335.46 Tofacitinib Related Compound 15 C15H21N5O M.W. 287.37 Tofacitinib Related Compound 18 C27H31N5O2S M.W. 489.64 Tofacitinib Related Compound 21 CAS No. 1640972-35-5 C16H22N6O M.W. 314.39 Tofacitinib Related Compound 25 C27H31N5OS M.W. 473.65 Tofacitinib Related Compound 28 (rac-trans-Tofacitinib) C16H20N6O M.W. 312.38 Tofacitinib Related Compound 31 C12H7ClN6 M.W. 270.68 Tofacitinib Related Compound 34 C20H26ClN5 M.W. 371.91 Tofacitinib Related Compound 37 C33H41N11O2 M.W. 623.77 Tofacitinib Related Compound 40 C20H29N5O3 M.W. 387.48 Tofacitinib Related Compound 43 C14H22N2O M.W. 234.34 Tofacitinib Related Compound 44 C14H22N2. C20H18O8 M.W. 218.34 386.36 Tofacitinib Related Compound 44 C14H22N2. C20H18O8 M.W. 218.34 386.36 Tofacitinib N-hydroxy Impurity CAS No. N/A C13H19N5O M.W. 261.33 Tofacitinib Related Compound 3 C13H18N4O2 M.W. 262.31 Tofacitinib Related Compound 6 C19H21N7O2 M.W. 379.42 Tofacitinib Related Compound 10 C13H19N5 M.W. 245.33 Tofacitinib Impurity F CAS No. 384338-23-2 C14H22N2 M.W. 218.34 Tofacitinib Impurity K CAS No. N/A C16H21N5O3 M.W. 331.38 Tofacitinib Impurity N CAS No. 1260614-73-0 C13H19N5 M.W. 245.33 Tofacitinib Impurity Q CAS No. 3680-69-1 C6H4ClN3 M.W. 153.57 Tofacitinib Impurity T CAS No. N/A C16H18N6O M.W. 310.36 Tofacitinib Impurity W CAS No. N/A C13H18ClN5 M.W. 279.77 Tofacitinib Impurity Z CAS No. 477600-76-3 C15H21N5O M.W. 287.37 Tofacitinib Related Compound 13 CAS No. N/A C20H25N5 M.W. 335.46 Tofacitinib Related Compound 16 C15H23N5 M.W. 273.38 Tofacitinib Related Compound 19 C16H20N6O2 M.W. 328.38 Tofacitinib Related Compound 23 DiHCl CAS No. 1812890-23-5 (free base) C13H21N5.2 HCl M.W. 247.35 2 36.46 Tofacitinib Related Compound 26 HCl CAS No. 1206824-85-2 C10H17N3O. HCl M.W. 195.27 36.46 Tofacitinib Related Compound 29 C6H6ClN3 M.W. 155.59 Tofacitinib Related Compound 32 C23H31N7O3 M.W. 453.55 Tofacitinib Related Compound 35 C21H27N7O3 M.W. 425.49 Tofacitinib Related Compound 38 CAS No. 477600-69-4 C14H22N2 M.W. 218.34 Tofacitinib Related Compound 41 C23H31N7O3 M.W. 453.55 Tofacitinib Related Compound 45 C20H24ClN5 M.W. 369.90 Tofacitinib Related Compound 48 C14H22N2. C20H18O8 M.W. 218.34 386.36 Tofacitinib Impurity A CAS No. 1092578-46-5 C16H20N6O M.W. 312.38 Tofacitinib Impurity (N-Des-(2-Cyanide-acetyl)-(3S,4R)) CAS No. N/A C13H19N5 M.W. 245.33 Tofacitinib related compound 1 C16H22N6O2 M.W. 330.39 Tofacitinib related compound 4 C16H20N6O M.W. 312.38 Tofacitinib Related Compound 8 C29H38N10O2 M.W. 558.69 Tofacitinib Related Impurity (PF-05579970) CAS No. N/A C15H21N5O M.W. 287.37 Tofacitinib Impurity I CAS No. N/A C14H22N2 2HCl M.W. 218.34 2x36.46 Tofacitinib Impurity L CAS No. 1675248-19-7 C16H22N6O2 M.W. 330.39 Tofacitinib Impurity O CAS No. N/A C20H25N5 M.W. 335.46 Tofacitinib Impurity R CAS No. 479633-63-1 C13H10ClN3O2S M.W. 307.76 Tofacitinib Impurity U CAS No. N/A C13H18ClN5 M.W. 297.77 Tofacitinib Impurity X CAS No. N/A C13H19N5 M.W. 245.33 Tofacitinib Related Compound 11 CAS No. 1640971-60-3 C14H20N6O M.W. 288.36 Tofacitinib Related Compound 14 CAS No. N/A C14H19N5O M.W. 273.34 Tofacitinib Related Compound 17 C27H31N5O2S M.W. 489.64 Tofacitinib Related Compound 20 C23H26N6O3S M.W. 466.57 Tofacitinib Related Compound 24 C19H23N7O2 M.W. 381.44 Tofacitinib Related Compound 27 C13H18N4O2 M.W. 262.31 Tofacitinib Related Compound 30 C20H27N5 M.W. 337.47 Tofacitinib Related Compound 33 C32H40N12O2 M.W. 624.75 Tofacitinib Related Compound 36 C21H27N7O3 M.W. 425.49 Tofacitinib Related Compound 39 C27H31N5O2S M.W. 489.64 Tofacitinib Related Compound 42 C19H22N8 M.W. 362.44 2,4-dichloro-7H-pyrrolo[2,3-d]pyrimidine CAS No. 90213-66-4 C6H3Cl2N3 M.W. 188.01 Tofacitinib Related Compound 46 C14H22N2. C20H18O8 M.W. 218.34 386.36 Tofacitinib Related Compound 49 C20H24ClN5 M.W. 369.90

Tizanidine Working Standard Tizanidine Impurity - A,B,C,D,E,F,G..... Tizanidine Related Compounds - A,B,C,D,E,F,G..... Tizanidine HCl CAS No. 64461-82-1 C9H8ClN5S. HCl M.W. 253.71 36.46 Tizanidine EP Impurity C CAS No. 1147548-83-1 C16H14Cl2N10S2 M.W. 481.38 Tizanidine EP Impurity A CAS No. 51322-69-1 C9H9N5S M.W. 219.27 Tizanidine EP Impurity E CAS No. 30536-19-7 C6H4ClN3S M.W. 185.63 Tizanidine Impurity 3 C11H10ClN5OS M.W. 295.75 Tizanidine Impurity 4 CAS No. 5391-52-6 C5H8N2OS M.W. 144.19 Tizanidine Metabolite C7H6ClN5S M.W. 227.68 Tizanidine Dimer Impurity CAS No. N/A C14H12ClN8S2 M.W. 427.34 Dehydro Tizanidine CAS No. 125292-34-4 C9H6ClN5S M.W. 251.70

Tinidazole Working Standard Molar mass: 247.273 CAS ID: 19387-91-8 Formula: C8H13N3O4S Tinidazole Impurity - A,B,C,D,E,F,G..... Tinidazole Related Compounds - A,B,C,D,E,F,G..... Tinidazole Impurity 1 (1-[2-(ethylthio)ethyl]-2-methyl-4-nitro-1H-imidazole) CAS No. 13230-19-8 C8H13N3O2S M.W. 215.28 Tinidazole Impurity 3 CAS No. 28795-33-7 C8H13N3O2S M.W. 215.27 Tinidazole Impurity 2 (2-(Ethylthio)ethanol) CAS No. 110-77-0 C4H10OS M.W. 106.18 Tinidazole Impurity 4 C8H11N3O6S M.W. 277.25 Tinidazole Impurity 5 C8H13N3O3S M.W. 231.27 Tinidazole Impurity 6 C6H12N2O4S M.W. 208.23

With the aid of modern storage facility and diligent professionals, we are capable to fulfill quick and voluminous requirements of the clients. Also, we ensure complete safety of the stored products. We have installed all the requisite amenities, necessary for making safe side deliveries.   Timolol Maleate  working standardTimolol Maleate Impurity A, B, C, D, E, F, G, H........Timolol Maleate Related compound A, B, C, D, E, F, G, H........Timolol CAS No. 26839-75-8 C13H24N4O3S M.W. 316.43 Timolol Maleate CAS No. 26921-17-5 C13H24N4O3S. C4H4O4 M.W. 316.43 116.07 (S)-Timolol EP Impurity C Maleate CAS No. 1391068-18-0 (free base) C19H31N7O4S2. C4H4O4 M.W. 485.63 116.07 Hydroxy Timolol C13H24N4O4S M.W. 332.42 Timolol-d5 C13H19N4O3SD5 M.W. 321.46 (R)-Timolol Maleate (Timolol Impurity A Maleate) CAS No. 26839-77-0 C13H24N4O3S. C4H4O4 M.W. 316.43 116.07 Timolol EP Impurity J C16H32N4O4S M.W. 376.52 Timolol Impurity 1 CAS No. 75014-25-4 C13H24N4O5S M.W. 348.42 Racemic Timolol Maleate CAS No. 57073-55-9 C13H24N4O3S M.W. 316.43 Timolol EP Impurity D CAS No. 30165-97-0 C6H9N3O2S M.W. 187.22 Reduced Timolol C13H22N4O3S M.W. 314.41 Timolol EP Impurity E CAS No. 1026075-53-5 C17H26N4O6S M.W. 414.48 Timolol EP Impurity H HCl CAS No. 158636-97-6 (free base) C13H24N4O3S. HCl M.W. 316.43 36.46 Timolol Impurity 2 CAS No. 75014-26-5 C11H22N4O3S M.W. 290.38

Thiamine Working Standard Formula: C12H17N4OS+ Molar mass: 265.35 Thiamine Impurity - A,B,C,D,E,F,G..... Thiamine Related Compounds - A,B,C,D,E,F,G..... Thiamine Hydrochloride CAS No. 67-03-8 C12H17N4OS Cl HCl .W. 265.36 35.45 36.46 Thiamine EP Impurity A HCl CAS No. 2380-61-2 (free base) C12H16N4O4S2. HCl M.W. 344.41 36.46 Thiamine EP Impurity B HBr C11H15N4OS. Br. HBr M.W. 251.33 79.90 80.91 Thiamine EP Impurity C DiHCl C12H16ClN4S. Cl. 2 HCl M.W. 283.81 35.45 2 36.46 Thiamine EP Impurity D (Oxo Thiamine) CAS No. 490-82-4 C12H16N4O2S M.W. 280.35 Thiamine EP Impurity E (Thiothiamine) CAS No. 299-35-4 C12H16N4OS2 M.W. 296.41 Thiamine EP Impurity F HBr CAS No. 6309-04-2 C13H19N4OS. Br. HBr M.W. 279.39 79.90 80.91 Thiamine EP Impurity G HCl CAS No. 1037-29-2 C14H19N4O2S. Cl. HCl M.W. 307.40 35.45 36.46 Thiamine Impurity H CAS No. 89285-03-0 C14H20N4O3S2 M.W. 356.46 Thiamine Disulfide CAS No. 67-16-3 C24H34N8O4S2 M.W. 562.72 Thiamine HCl Impurity B (2-Nor Thiamine) CAS No. 7770-93-6 C11H15N4OS . Cl M.W. 251.33 35.45 Z-Benfotiamine CAS No. 775256-41-2 C19H23N4O6PS M.W. 466.46 Benfotiamine Amide CAS No. N/A C26H27N4O7PS M.W. 570.57 Thiamine EP Impurity F HCl CAS No. 4102-72-1 C13H19N4OS. Cl. HCl M.W. 279.39 35.45 36.46

Tetracaine Working Standard Molar mass: 264.363 Formula: C15H24N2O2 Tetracaine Impurity - A,B,C,D,E,F,G..... Tetracaine Related Compounds - A,B,C,D,E,F,G..... Tetracaine Impurity 1 C13H19NO3[C2H4O]n M.W. 237.30[44.05]n Tetracaine Impurity 3 (4-Aminobenzyl Alcohol) CAS No. 623-04-1 C7H9NO M.W. 123.16 Tetracaine Impurity 4 (2-Aminobenzyl Alcohol) CAS No. 5344-90-1 C7H9NO M.W. 123.16 Tetracaine Impurity 5 (Ethyl 3-Aminobenzoate) CAS No. 582-33-2 C9H11NO2 M.W. 165.19 Tetracaine Impurity 6 (Ethyl 2-Aminobenzoate) CAS No. 87-25-2 C9H11NO2 M.W. 165.19 Tetracaine Impurity 7 (4-Nitrobenzoic Acid) CAS No. 62-23-7 C7H5NO4 M.W. 167.12 Tetracaine Impurity 8 (3-Aminobenzyl Alcohol) CAS No. 1877-77-6 C7H9NO M.W. 123.16 Tetracaine Impurity 8 (3-Aminobenzyl Alcohol) Tetracaine-d6 C15H18N2O2D6 M.W. 270.41 Tetracaine EP Impurity C CAS No. 71839-12-8 C12H17NO2 M.W. 207.27 Tetracaine HCl CAS No. 136-47-0 C15H24N2O2. HCl M.W. 264.37 36.46 Tetracaine HCl Tetracaine EP Impurity A (4-Aminobenzoic Acid) CAS No. 150-13-0 C7H7NO2 M.W. 137.14 Tetracaine N-Oxide C15H24N2O3 M.W. 280.37 Tetracaine EP Impurity B CAS No. 4740-24-3 C11H15NO2 M.W. 193.25 Tetracaine Impurity 2 C24H32N2O4[C2H4O]n M.W. 412.53[44.05]n

Clients can stay rest assured for undamaged delivery of the products as we strictly use only quality packaging material. Thus, we make sure that the products are 100% safe from the destructing factors. Supplying wide array of products, we successfully make deliveries within the dedicated time span.   Terbutaline  working standardTerbutaline Impurity A, B, C, D, E, F, G, H........Terbutaline Related compound A, B, C, D, E, F, G, H........Terbutaline EP Impurity D HBr CAS No. 1797117-23-7 C19H23NO3. HBr M.W. 313.40 80.9 Terbutaline Impurity 6 C26H29NO3 M.W. 403.52 Terbutaline-d9 HCl CAS No. 1189658-09-0 (free base) C12H10NO3D9. HCl M.W. 234.34 36.46 Terbutaline Impurity C (Terbutalone HCl) CAS No. 1246815-70-2 C12H17NO3 HCl M.W. 223.27 36.46 Terbutaline Impurity 4 CAS No. 28924-25-6 C26H31NO3 M.W. 405.54 Terbutaline Impurity B Sulphate CAS No. 153657-83-1 (Dihydrate) C13H19NO3. 1/2 H2O4S M.W. 237.30 1/2 98.08 Terbutaline Impurity HCl 1 CAS No. 317351-39-6 C16H17NO3. HCl M.W. 271.32 36.46 Terbutaline EP Impurity A CAS No. 99-10-5 C7H6O4 M.W. 154.12 Terbutaline Impurity 5 C12H19NO6S M.W. 305.35 Terbutaline Sulfate CAS No. 23031-32-5 C12H19NO3. 0.5H2SO4 M.W. 225.29 49.05 Terbutaline Impurity 2 HCl CAS No. 857432-92-9 C16H17NO3. HCl M.W. 271.32 36.46   Terbutaline Impurity 3 (3,5-Dihydroxybenzaldehyde) CAS No. 26153-38-8 C7H6O3 M.W. 138.12

Tenofovir Working Standard Molar mass: 287.213 CAS ID: 147127-20-6 Tenofovir Impurity - A,B,C,D,E,F,G..... Tenofovir Related Compounds - A,B,C,D,E,F,G..... Emtricitabine Tenofovir Disoproxil Dimer C28H40FN8O13PS M.W. 778.70 Emtricitabine Tenofovir Monosoproxil Dimer C23H32FN8O10PS M.W. 662.60 Tenofovir Disoproxil Carbamate (Related Compound H) CAS No. 1244022-54-5 C23H36N5O12P M.W. 605.54 Tenofovir Disoproxil Carbamate (Related Compound H) Desmethyl Tenofovir Disoproxoil (Adefovir Disoproxil) CAS No. 365417-53-4 C18H28N5O10P M.W. 505.43 Tenofovir Disoproxil Related Compound E CAS No. 211364-69-1 C14H22N5O7P M.W. 403.33 Tenofovir Disoproxil Related Compound G Fumarate CAS No. 1422284-15-8 C17H28N5O7P. C4H4O4 M.W. 445.42 116.07 (S)-Tenofovir Disoproxil Fumarate CAS No. 1432630-26-6 C19H30N5O10P. C4H4O M.W. 519.45 116.07 Diethylaminocarboxymethyl POC Tenofovir Fumarate CAS No. 1246812-23-6 (free base) C20H33N6O9P. C4H4O4 M.W. 532.49 116.07 Tenofovir Impurity 2 (9-Propenyladenine) CAS No. 4121-40-8 C8H9N5 M.W. 175.19 Mono-POC Methyl Tenofovir Fumarate (Mixture of Diastereomers) CAS No. 1246812-16-7 (free base) C15H24N5O7P. C4H4O4 M.W. 417.36 116.07 Mono-POC Tenofovir Fumarate Salt CAS No. 1246812-43-0 (free base) C17H26N5O10P C4H4O4 M.W. 491.40 116.07

Temozolomide Working Standard Temozolomide Impurity - A,B,C,D,E,F,G..... Temozolomide Related Compounds - A,B,C,D,E,F,G..... Temozolomide CAS No. 85622-93-1 C6H6N6O2 M.W. 194.15 Temozolomide Impurity 4 CAS No. 188612-53-5 C6H9N5O2 M.W. 184.18 Temozolomide Related Compound A CAS No. 7008-85-7 C4H3N5O M.W. 137.10 3-Amino-3-imino-2-(2-phenyldiazenyl)propanamide Hydrochloride CAS No. 6285-64-9 C9H11N5O . HCl M.W. 205.22 36.46 Temozolomide Impurity 5 C4H3N5O M.W. 137.10 Temozolomide Impurity 6 C12H15N11O4 M.W. 377.32 Temozolomide Impurity 7 CAS No. 83-01-2 C13H10ClNO M.W. 231.68 Temozolomide-d3 CAS No. 208107-14-6 C6H3N6O2D3 M.W. 197.17 Temozolomide Metabolite - MTIC CAS No. 1232679-46-7 C5H8N6O M.W. 168.16 Temozolomide Acid CAS No. 113942-30-6 C6H5N5O3 M.W. 195.14 Temozolomide EP Impurity C CAS No. 114601-31-9 C6H4N6O M.W. 176.14 Temozolomide Impurity 1 C9H11N5O M.W. 205.22 Temozolomide Impurity 2 C4H8N4O2 . HCl M.W. 144.13 36.46 Temozolomide Impurity 3 C14H14N2O M.W. 226.28