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Alfa Chemistry is a global leading supplier of analytical chemistry reagents, providing a wide range of analytical chemicals such as analytical standards for a variety of analytical applications.

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Telmisartan EP Impurity A Telmisartan EP Impurity A. Uses: For analytical and research use. Group: Impurity standards. CAS No. 152628-02-9. Molecular Formula: C19H20N4. Mole Weight: 304.4. Catalog: APB152628029. Alfa Chemistry Analytical Products
Telmisartan EP Impurity B Telmisartan EP Impurity B. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1026353-20-7. Molecular Formula: C33H30N4O2. Mole Weight: 514.63. Catalog: APB1026353207. Alfa Chemistry Analytical Products
Telmisartan EP Impurity C Telmisartan EP Impurity C. Uses: For analytical and research use. Group: Impurity standards. CAS No. 144702-26-1. Molecular Formula: C37H38N4O2. Mole Weight: 570.74. Catalog: APB144702261. Alfa Chemistry Analytical Products
Telmisartan EP Impurity D Telmisartan EP Impurity D. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1098100-86-7. Molecular Formula: C27H25N3O2. Mole Weight: 423.51. Catalog: APB1098100867. Alfa Chemistry Analytical Products
Telmisartan EP Impurity G Telmisartan EP Impurity G. Uses: For analytical and research use. Group: Impurity standards. CAS No. 144702-27-2. Molecular Formula: C33H29N5. Mole Weight: 495.63. Catalog: APB144702272. Alfa Chemistry Analytical Products
Telmisartan Impurity 1 Telmisartan Impurity 1. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1026438-56-1. Molecular Formula: C37H38N4O2. Mole Weight: 570.74. Catalog: APB1026438561. Alfa Chemistry Analytical Products
Telmisartan Impurity 12 Telmisartan Impurity 12. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1282554-35-1. Molecular Formula: C19H22N4O. Mole Weight: 322.41. Catalog: APB1282554351. Alfa Chemistry Analytical Products
Telmisartan Impurity 14 Telmisartan Impurity 14. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1083158-65-9. Molecular Formula: C19H22N4O. Mole Weight: 322.41. Catalog: APB1083158659. Alfa Chemistry Analytical Products
Telmisartan Impurity 15 Telmisartan Impurity 15. Uses: For analytical and research use. Group: Impurity standards. CAS No. 152628-01-8. Molecular Formula: C13H16N2O5. Mole Weight: 280.11. Catalog: APB152628018. Alfa Chemistry Analytical Products
Telmisartan Impurity 24 Telmisartan Impurity 24. Uses: For analytical and research use. Group: Impurity standards. CAS No. 141-86-6. Molecular Formula: C5H7N3. Mole Weight: 109.13. Catalog: APB141866. Alfa Chemistry Analytical Products
Telmisartan Impurity 3 Telmisartan Impurity 3. Uses: For analytical and research use. Group: Impurity standards. CAS No. 144701-81-5. Molecular Formula: C32H28N4O2. Mole Weight: 500.6. Catalog: APB144701815. Alfa Chemistry Analytical Products
Telmisartan Impurity 39 Telmisartan Impurity 39. Uses: For analytical and research use. Group: Impurity standards. CAS No. 158144-54-8. Molecular Formula: C14H12O3. Mole Weight: 228.25. Catalog: APB158144548. Alfa Chemistry Analytical Products
Telmisartan Impurity 4 Telmisartan Impurity 4. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1004548-55-3. Molecular Formula: C26H25BrN4. Mole Weight: 473.42. Catalog: APB1004548553. Alfa Chemistry Analytical Products
Telmisartan Impurity 5 Telmisartan Impurity 5. Uses: For analytical and research use. Group: Impurity standards. CAS No. 144702-57-8. Molecular Formula: C32H27N5. Mole Weight: 481.6. Catalog: APB144702578. Alfa Chemistry Analytical Products
Telmisartan Impurity B Telmisartan Impurity B. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: Telmisartan Impurity B. CAS No. 1026438-56-1. IUPAC Name: tert-butyl 2-[3-[[7-methyl-5-(1-methylbenzimidazol-2-yl)-2-propyl-benzimidazol-1-yl]methyl]phenyl]benzoate. Molecular Formula: C37H38N4O2. Mole Weight: 570.723. Catalog: APS1026438561. SMILES: CCCc1nc2cc (cc (C)c2n1Cc3cccc (c3)c4ccccc4C (=O)OC (C) (C)C)c5nc6ccccc6n5C. Format: Neat. Alfa Chemistry Analytical Products
Telmisartan tert-Butyl Ester Telmisartan tert-Butyl Ester. Uses: For analytical and research use. Group: Impurity standards. CAS No. 144702-26-1. IUPAC Name: tert-butyl 2-[4-[[4-methyl-6-(1-methylbenzimidazol-2-yl)-2-propylbenzimidazol-1-yl]methyl]phenyl]benzoate. Molecular Formula: C37H38N4O2. Mole Weight: 570.72. Catalog: APS144702261. SMILES: CCCc1nc2c (C)cc (cc2n1Cc3ccc (cc3)c4ccccc4C (=O)OC (C) (C)C)c5nc6ccccc6n5C. Format: Neat. Alfa Chemistry Analytical Products
Temazepam EP Impurity D Temazepam EP Impurity D. Uses: For analytical and research use. Group: Impurity standards. CAS No. 17191-70-7. Molecular Formula: C17H15ClN2O2. Mole Weight: 314.77. Catalog: APB17191707. Alfa Chemistry Analytical Products
Temozolomide EP Impurity B Temozolomide EP Impurity B. Uses: For analytical and research use. Group: Impurity standards. CAS No. 113942-30-6. Molecular Formula: C6H5N5O3. Mole Weight: 195.14. Catalog: APB113942306. Alfa Chemistry Analytical Products
Temozolomide Impurity 11 Temozolomide Impurity 11. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1007-36-9. Molecular Formula: C8H10N2O. Mole Weight: 150.18. Catalog: APB1007369. Alfa Chemistry Analytical Products
Temozolomide Impurity 13 Temozolomide Impurity 13. Uses: For analytical and research use. Group: Impurity standards. CAS No. 128191-80-0. Molecular Formula: C4H6N2O4. Mole Weight: 146.1. Catalog: APB128191800. Alfa Chemistry Analytical Products
Temozolomide Impurity 14 Temozolomide Impurity 14. Uses: For analytical and research use. Group: Impurity standards. CAS No. 100-34-5. Molecular Formula: C6H5ClN2. Mole Weight: 140.57. Catalog: APB100345. Alfa Chemistry Analytical Products
Temozolomide Impurity 20 Temozolomide Impurity 20. Uses: For analytical and research use. Group: Impurity standards. CAS No. 18514-52-8. Molecular Formula: C4H4N4. Mole Weight: 108.1. Catalog: APB18514528. Alfa Chemistry Analytical Products
Temozolomide Impurity 4 Temozolomide Impurity 4. Uses: For analytical and research use. Group: Impurity standards. CAS No. 188612-53-5. Molecular Formula: C6H9N5O2. Mole Weight: 183.17. Catalog: APB188612535. Alfa Chemistry Analytical Products
Temozolomide Impurity 8 Temozolomide Impurity 8. Uses: For analytical and research use. Group: Impurity standards. CAS No. 196806-10-7. Molecular Formula: C11H9N5O5. Mole Weight: 291.22. Catalog: APB196806107. Alfa Chemistry Analytical Products
TemozoloMide Metabolite-MTIC TemozoloMide Metabolite-MTIC. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1232679-46-7. Molecular Formula: C5H8N6O. Mole Weight: 168.16. Catalog: APB1232679467. Alfa Chemistry Analytical Products
Temsirolimus isomer C Temsirolimus isomer C. Uses: For analytical and research use. Group: Impurity standards. CAS No. 150821-39-9. Molecular Formula: C51H79NO13. Mole Weight: 914.17. Catalog: APB150821399. Alfa Chemistry Analytical Products
Teneligliptin impurity 3 Teneligliptin impurity 3. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1404559-15-4. Molecular Formula: C22H30N6OS. Mole Weight: 426.58. Catalog: APB1404559154. Alfa Chemistry Analytical Products
Teneligliptin impurity 4 Teneligliptin impurity 4. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1404559-22-3. Molecular Formula: C27H38N6O3S. Mole Weight: 526.7. Catalog: APB1404559223. Alfa Chemistry Analytical Products
Teneligliptin impurity 5 Teneligliptin impurity 5. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1415908-67-6. Molecular Formula: C13H20N2O4S. Mole Weight: 300.37. Catalog: APB1415908676. Alfa Chemistry Analytical Products
Teneligliptin impurity 6 Teneligliptin impurity 6. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1404559-17-6. Molecular Formula: C22H30N6OS. Mole Weight: 426.58. Catalog: APB1404559176. Alfa Chemistry Analytical Products
Teneligliptin Sulfoxide (Mixture of Diastereomers) Teneligliptin Sulfoxide (Mixture of Diastereomers). Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 3-[[(2S,4S)-4-[4-(3-Methyl-1-phenyl-1H-pyrazol-5-yl)-1-piperazinyl]-2-pyrrolidinyl]carbonyl]thiazolidine Sulfoxide,[(2S,4S)-4-[4-(3-Methyl-1-phenyl-1H-pyrazol-5-yl)-1-piperazinyl]-2-pyrrolidinyl]-3-thiazolidinylmethanone Sulfoxide, Tenelia Sulfoxide. IUPAC Name: [(2S,4S)-4-[4-(5-methyl-2-phenyl-pyrazol-3-yl)piperazin-1-yl]pyrrolidin-2-yl]-(1-oxo-1,3-thiazolidin-3-yl)methanone. Molecular Formula: C22H30N6O2S. Mole Weight: 442.58. Catalog: APS003276. SMILES: Cc1cc (N2CCN (CC2)[C@@H]3CN[C@@H] (C3)C (=O)N4CCS (=O)C4)n (n1)c5ccccc5. Format: Neat. Alfa Chemistry Analytical Products
Tenofovir Disoproxil Dimer Tenofovir Disoproxil Dimer. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: Tenofovir Disoproxil Dimer,2,4,6,8-Tetraoxa-5-phosphanonanedioic acid, 5-[[(1R)-2-[6-[[[[9-[(2R)-2,11-dimethyl-5-[[[(1-methylethoxy)carbonyl]oxy]methoxy]-5-oxido-9-oxo-3,6,8,10-tetraoxa-5-phosphadodec-1-yl]-9H-purin-6-yl]amino]methyl]amino]-9H-purin-9-yl]-1-methylethoxy]methyl]-, 1,9-bis(1-methylethyl) ester, 5-oxide. CAS No. 1093279-76-5. IUPAC Name: [[ (2R) -1-[6-[[[9-[ (2R) -2-[bis (propan-2-yloxycarbonyloxymethoxy) phosphorylmethoxy]propyl]purin-6-yl]amino]methylamino]purin-9-yl]propan-2-yl]oxymethyl- (propan-2-yloxycarbonyloxymethoxy) phosphoryl]oxymethyl propan-2-yl carbonate. Molecular Formula: C39H60N10O20P2. Mole Weight: 1050.90. Catalog: APS1093279765. SMILES: CC (C)OC (=O)OCOP (=O) (CO[C@H] (C)Cn1cnc2c (NCNc3ncnc4c3ncn4C[C@@H] (C)OCP (=O) (OCOC (=O)OC (C)C)OCOC (=O)OC (C)C)ncnc12)OCOC (=O)OC (C)C. Format: Neat. Alfa Chemistry Analytical Products
Tenofovir Disoproxil USP Related Compound G Fumarate Tenofovir Disoproxil USP Related Compound G Fumarate. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1422284-15-8. Molecular Formula: C21H32N5O11P. Mole Weight: 561.48. Catalog: APB1422284158. Alfa Chemistry Analytical Products
Tenofovir Impurity 104 Tenofovir Impurity 104. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1878175-77-9. Molecular Formula: C17H23N10O4P. Mole Weight: 462.41. Catalog: APB1878175779. Alfa Chemistry Analytical Products
Tenofovir Impurity 112 Tenofovir Impurity 112. Uses: For analytical and research use. Group: Impurity standards. CAS No. 133217-92-2. Molecular Formula: C6H12ClNO2. Mole Weight: 165.62. Catalog: APB133217922. Alfa Chemistry Analytical Products
Tenofovir Impurity 32 Tenofovir Impurity 32. Uses: For analytical and research use. Group: Impurity standards. CAS No. 166403-66-3. Molecular Formula: C9H16N5O10P3. Mole Weight: 447.17. Catalog: APB166403663. Alfa Chemistry Analytical Products
Tenofovir impurity 35 Tenofovir impurity 35. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (E)-9-(prop-1-en-1-yl)-9H-purin-6-amine; Tenofovir Disoproxil USP Related Compound B. CAS No. 1446486-33-4. Molecular Formula: C8H9N5. Mole Weight: 175.19. Catalog: APB1446486334. Alfa Chemistry Analytical Products
Tenofovir impurity 62 Tenofovir impurity 62. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (R)-1-(6-amino-9H-purin-9-yl)propan-2-ol. CAS No. 14047-28-0. Molecular Formula: C8H11N5O. Mole Weight: 193.21. Catalog: APB14047280. Alfa Chemistry Analytical Products
Tenofovir Impurity 62 Tenofovir Impurity 62. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1962114-92-6. Molecular Formula: C29H44N10O14P2. Mole Weight: 818.67. Catalog: APB1962114926. Alfa Chemistry Analytical Products
Tenofovir Impurity 63 Tenofovir Impurity 63. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1093279-77-6. Molecular Formula: C34H52N10O17P2. Mole Weight: 934.79. Catalog: APB1093279776. Alfa Chemistry Analytical Products
Tenofovir Impurity 64 Tenofovir Impurity 64. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1093279-76-5. Molecular Formula: C39H60N10O20P2. Mole Weight: 1050.91. Catalog: APB1093279765. Alfa Chemistry Analytical Products
Tenofovir Impurity 71 Tenofovir Impurity 71. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1607007-18-0. Molecular Formula: C18H26N10O7P2. Mole Weight: 556.42. Catalog: APB1607007180. Alfa Chemistry Analytical Products
Tenofovir Impurity 73 Tenofovir Impurity 73. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1883563-86-7. Molecular Formula: C21H36N7O5P. Mole Weight: 497.54. Catalog: APB1883563867. Alfa Chemistry Analytical Products
Tenofovir Impurity 84 Tenofovir Impurity 84. Uses: For analytical and research use. Group: Impurity standards. CAS No. 2122333-63-3. Molecular Formula: C15H31N6O10P3. Mole Weight: 548.37. Catalog: APB2122333633. Alfa Chemistry Analytical Products
Tenofovir Impurity 89 Tenofovir Impurity 89. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1244022-53-4. Molecular Formula: C20H32N5O11P. Mole Weight: 549.47. Catalog: APB1244022534. Alfa Chemistry Analytical Products
Tenofovir Impurity 90 Tenofovir Impurity 90. Uses: For analytical and research use. Group: Impurity standards. CAS No. 16958-60-4. Molecular Formula: C8H11N5O. Mole Weight: 193.21. Catalog: APB16958604. Alfa Chemistry Analytical Products
Tenofovir Impurity 91 Tenofovir Impurity 91. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1878175-74-6. Molecular Formula: C11H18N5O4P. Mole Weight: 315.27. Catalog: APB1878175746. Alfa Chemistry Analytical Products
Tenofovir Impurity 92 Tenofovir Impurity 92. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1878175-75-7. Molecular Formula: C9H14N5O4P. Mole Weight: 287.22. Catalog: APB1878175757. Alfa Chemistry Analytical Products
Tenofovir Impurity 98 Tenofovir Impurity 98. Uses: For analytical and research use. Group: Impurity standards. CAS No. 14047-27-9. Molecular Formula: C8H11N5O. Mole Weight: 193.21. Catalog: APB14047279. Alfa Chemistry Analytical Products
Tenofovir Impurity A Tenofovir Impurity A. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1534434-02-0. Molecular Formula: C14H22N5O9P. Mole Weight: 435.33. Catalog: APB1534434020. Alfa Chemistry Analytical Products
Tenofovir Impurity B Tenofovir Impurity B. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1878175-76-8. Molecular Formula: C13H23N5O8P2. Mole Weight: 439.3. Catalog: APB1878175768. Alfa Chemistry Analytical Products
Tenofovir Impurity C Tenofovir Impurity C. Uses: For analytical and research use. Group: Impurity standards. CAS No. 211364-69-1. Molecular Formula: C14H22N5O7P. Mole Weight: 403.33. Catalog: APB211364691. Alfa Chemistry Analytical Products
Tenofovir Impurity E Tenofovir Impurity E. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1244022-56-7. Molecular Formula: C18H28N5O9P. Mole Weight: 489.42. Catalog: APB1244022567. Alfa Chemistry Analytical Products
Tenofovir Impurity G Tenofovir Impurity G. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1884329-63-8. Molecular Formula: C8H10BrN5. Mole Weight: 256.11. Catalog: APB1884329638. Alfa Chemistry Analytical Products
Tenofovir Impurity H Tenofovir Impurity H. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1280130-08-6. Molecular Formula: C19H30N5O10P. Mole Weight: 519.45. Catalog: APB1280130086. Alfa Chemistry Analytical Products
Tenofovir Impurity I Tenofovir Impurity I. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1246812-23-6. Molecular Formula: C21H34N5O9P. Mole Weight: 531.5. Catalog: APB1246812236. Alfa Chemistry Analytical Products
Tenofovir Impurity J Tenofovir Impurity J. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1246812-16-7. Molecular Formula: C15H24N5O7P. Mole Weight: 417.35. Catalog: APB1246812167. Alfa Chemistry Analytical Products
Tenofovir Impurity K Tenofovir Impurity K. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1246812-40-7. Molecular Formula: C17H28N5O7P. Mole Weight: 445.41. Catalog: APB1246812407. Alfa Chemistry Analytical Products
Tenofovir Impurity M Tenofovir Impurity M. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1422284-16-9. Molecular Formula: C18H28N5O10P. Mole Weight: 505.42. Catalog: APB1422284169. Alfa Chemistry Analytical Products
Tenofovir Impurity O Tenofovir Impurity O. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1244022-54-5. Molecular Formula: C23H36N5O12P. Mole Weight: 605.54. Catalog: APB1244022545. Alfa Chemistry Analytical Products
Tenofovir Impurity P Tenofovir Impurity P. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1255525-18-8. Molecular Formula: C11H18N5O4P. Mole Weight: 315.27. Catalog: APB1255525188. Alfa Chemistry Analytical Products
Tenofovir Impurity S Tenofovir Impurity S. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1246812-43-0. Molecular Formula: C17H26N5O10P. Mole Weight: 491.39. Catalog: APB1246812430. Alfa Chemistry Analytical Products
Tenofovir Impurity T Tenofovir Impurity T. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1244022-52-3. Molecular Formula: C8H11N5O. Mole Weight: 193.21. Catalog: APB1244022523. Alfa Chemistry Analytical Products
Tenofovir Impurity W Tenofovir Impurity W. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1244022-55-6. Molecular Formula: C15H24N5O8P. Mole Weight: 433.36. Catalog: APB1244022556. Alfa Chemistry Analytical Products
Tenofovir Impurity X Tenofovir Impurity X. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1878175-82-6. Molecular Formula: C11H17N5O2. Mole Weight: 251.29. Catalog: APB1878175826. Alfa Chemistry Analytical Products
Tenofovir Isopropyl Ethyl Diester Tenofovir Isopropyl Ethyl Diester. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 2,4,6,8-Tetraoxa-5-phosphanonanedioic acid, 5-[[(1R)-2-(6-amino-9H-purin-9-yl)-1-methylethoxy]methyl]-, 1-ethyl 9-(1-methylethyl) ester, 5-oxide. CAS No. 1422284-16-9. IUPAC Name: [[ (2R) -1- (6-aminopurin-9-yl) propan-2-yl]oxymethyl- (ethoxycarbonyloxymethoxy) phosphoryl]oxymethyl propan-2-yl carbonate. Molecular Formula: C18H28N5O10P. Mole Weight: 505.42. Catalog: APS1422284169. SMILES: CCOC (=O)OCOP (=O) (CO[C@H] (C)Cn1cnc2c (N)ncnc12)OCOC (=O)OC (C)C. Format: Neat. Alfa Chemistry Analytical Products
Tenofovir Monoisoproxil Dimer Ammonium Sodium Salt (>85%) Tenofovir Monoisoproxil Dimer Ammonium Sodium Salt (>85%). Uses: For analytical and research use. Group: Impurity standards. Pack Sizes: 2.5MG. Catalog: APS013126. Format: Neat. Shipping: Dry ice. Alfa Chemistry Analytical Products
Tenoxicam Impurity 1 Tenoxicam Impurity 1. Uses: For analytical and research use. Group: Impurity standards. CAS No. 16817-89-3. Molecular Formula: C7H8N2O3. Mole Weight: 168.15. Catalog: APB16817893. Alfa Chemistry Analytical Products
Teprenone impurity 16 (Farnesylaceton) Teprenone impurity 16 (Farnesylaceton). Uses: For analytical and research use. Group: Impurity standards. CAS No. 1117-52-8. Molecular Formula: C18H30O. Mole Weight: 262.44. Catalog: APB1117528. Alfa Chemistry Analytical Products
Teprenone impurity 22 Teprenone impurity 22. Uses: For analytical and research use. Group: Impurity standards. CAS No. 109826-68-8. Molecular Formula: C23H40O. Mole Weight: 332.57. Catalog: APB109826688. Alfa Chemistry Analytical Products

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