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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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Aspartame impurity 2 Aspartame impurity 2. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1356841-28-5. Molecular Formula: C14H15D3N2O5. Mole Weight: 297.33. Catalog: APB1356841285. Alfa Chemistry Analytical Products
Aspirin Impurity 3 Aspirin Impurity 3. Uses: For analytical and research use. Group: Impurity standards. CAS No. 15540-79-1. Molecular Formula: C8H7NO5. Mole Weight: 197.15. Catalog: APB15540791. Alfa Chemistry Analytical Products
Aspirin Impurity A-D4 (Aspirin Impurity 12) Aspirin Impurity A-D4 (Aspirin Impurity 12). Uses: For analytical and research use. Group: Impurity standards. CAS No. 152404-47-2. Molecular Formula: C7H2D4O3. Mole Weight: 142.15. Catalog: APB152404472. Alfa Chemistry Analytical Products
Aspirin Impurity Standard Aspirin Impurity Standard. Uses: For analytical and research use. Group: British pharmacopoeia; pharmacopoeial standards. Catalog: APS005836. Format: Neat. Alfa Chemistry Analytical Products
ASTM Method D5501 Denatured Fuel Ethanol Calibration Set ASTM Method D5501 Denatured Fuel Ethanol Calibration Set. Uses: For analytical and research use. Group: Hydrocarbons & petrochemicals; petroleum reference materials. Catalog: APS005857. Format: Mixture. Shipping: Room Temperature. Alfa Chemistry Analytical Products
Atazanavir-d6 Atazanavir-d6. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1092540-50-5. Molecular Formula: C38H46D6N6O7. Mole Weight: 710.91. Catalog: APB1092540505. Alfa Chemistry Analytical Products
Atazanavir EP Impurity B Atazanavir EP Impurity B. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 4-(pyridin-2-yl)benzaldehyde. CAS No. 127406-56-8. Molecular Formula: C12H9NO. Mole Weight: 183.21. Catalog: APB127406568. Alfa Chemistry Analytical Products
Atazanavir EP Impurity F (Atazanavir R,S,S,S-Diastereomer) Atazanavir EP Impurity F (Atazanavir R,S,S,S-Diastereomer). Uses: For analytical and research use. Group: Impurity standards. Alternative Names: methyl ((5S,8S,9S,14R)-8-benzyl-5-(tert-butyl)-9-hydroxy-15,15-dimethyl-3,6,13-trioxo-11-(4-(pyridin-2-yl)benzyl)-2-oxa-4,7,11,12-tetraazahexadecan-14-yl)carbamate. CAS No. 1332981-14-2. Molecular Formula: C38H52N6O7. Mole Weight: 704.86. Catalog: APB1332981142. Alfa Chemistry Analytical Products
Atazanavir EP Impurity G (Atazanavir S,S,S,R-Diastereomer) Atazanavir EP Impurity G (Atazanavir S,S,S,R-Diastereomer). Uses: For analytical and research use. Group: Impurity standards. Alternative Names: methyl ((5R,8S,9S,14S)-8-benzyl-5-(tert-butyl)-9-hydroxy-15,15-dimethyl-3,6,13-trioxo-11-(4-(pyridin-2-yl)benzyl)-2-oxa-4,7,11,12-tetraazahexadecan-14-yl)carbamate. CAS No. 1332981-16-4. Molecular Formula: C38H52N6O7. Mole Weight: 704.86. Catalog: APB1332981164. Alfa Chemistry Analytical Products
Atazanavir Impurity 1 Atazanavir Impurity 1. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1292296-09-3. Molecular Formula: C38H52N6O7. Mole Weight: 704.87. Catalog: APB1292296093. Alfa Chemistry Analytical Products
Atazanavir Impurity 18 Atazanavir Impurity 18. Uses: For analytical and research use. Group: Impurity standards. CAS No. 156474-22-5. Molecular Formula: C15H21NO3. Mole Weight: 263.34. Catalog: APB156474225. Alfa Chemistry Analytical Products
Atazanavir Impurity 20 Atazanavir Impurity 20. Uses: For analytical and research use. Group: Impurity standards. CAS No. 102123-74-0. Molecular Formula: C15H20ClNO3. Mole Weight: 297.78. Catalog: APB102123740. Alfa Chemistry Analytical Products
Atazanavir Impurity 24 Atazanavir Impurity 24. Uses: For analytical and research use. Group: Impurity standards. CAS No. 156474-21-4. Molecular Formula: C15H21NO3. Mole Weight: 263.34. Catalog: APB156474214. Alfa Chemistry Analytical Products
Atazanavir Impurity 5 Atazanavir Impurity 5. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1292296-10-6. Molecular Formula: C38H52N6O7. Mole Weight: 704.87. Catalog: APB1292296106. Alfa Chemistry Analytical Products
Atazanavir Impurity 6 Atazanavir Impurity 6. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1006868-81-0. Molecular Formula: C32H42N4O5. Mole Weight: 562.71. Catalog: APB1006868810. Alfa Chemistry Analytical Products
Atazanavir Impurity 8 Atazanavir Impurity 8. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1028634-76-5. Molecular Formula: C36H50N6O5. Mole Weight: 646.83. Catalog: APB1028634765. Alfa Chemistry Analytical Products
Atemisinic Aldehyde Impurity (Artemisinin) Atemisinic Aldehyde Impurity (Artemisinin). Uses: For analytical and research use. Group: Impurity standards. CAS No. 125276-60-0. Molecular Formula: C15H22O. Mole Weight: 218.34. Catalog: APB125276600. Alfa Chemistry Analytical Products
Atenolol EP Impurity A Atenolol EP Impurity A. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 2-(4-hydroxyphenyl)acetamide. CAS No. 17194-82-0. Molecular Formula: C8H9NO2. Mole Weight: 151.16. Catalog: APB17194820. Alfa Chemistry Analytical Products
Atenolol EP Impurity E Atenolol EP Impurity E. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 2,2'-(((2-hydroxypropane-1,3-diyl)bis(oxy))bis(4,1-phenylene))diacetamide. CAS No. 141650-31-9. Molecular Formula: C19H22N2O5. Mole Weight: 358.39. Catalog: APB141650319. Alfa Chemistry Analytical Products
ATG-SARS-CoV-2 Antigen ATG-SARS-CoV-2 Antigen. Uses: For analytical and research use. Group: Covid-19 research and reference materials. Catalog: APS005882. Format: 3 x swab based samples. Alfa Chemistry Analytical Products
Atipamezole Impurity 2 Atipamezole Impurity 2. Uses: For analytical and research use. Group: Impurity standards. CAS No. 104054-82-2. Molecular Formula: C14H14N2O. Mole Weight: 226.28. Catalog: APB104054822. Alfa Chemistry Analytical Products
Atomoxetine EP Impurity B Atomoxetine EP Impurity B. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (S)-N-methyl-3-phenyl-3-(o-tolyloxy)propan-1-amine. CAS No. 105314-53-2. Molecular Formula: C17H21NO. Mole Weight: 255.35. Catalog: APB105314532. Alfa Chemistry Analytical Products
Atomoxetine Impurity 22 Atomoxetine Impurity 22. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 3-chloro-N-methyl-3-phenylpropan-1-amine hydrochloride. CAS No. 128036-32-8. Molecular Formula: C10H15Cl2N. Mole Weight: 220.14. Catalog: APB128036328. Alfa Chemistry Analytical Products
Atorvastatin Atorvastatin. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (3R,5R)-7-(2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl)-3,5-dihydroxyheptanoic acid. CAS No. 134523-00-5. Molecular Formula: C33H35FN2O5. Mole Weight: 558.64. Catalog: APB134523005. Alfa Chemistry Analytical Products
Atorvastatin Cyclic (Fluorophenyl) Sodium Salt Impurity Atorvastatin Cyclic (Fluorophenyl) Sodium Salt Impurity. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 1b-(4-Fluorophenyl)hexahydro-β,7-dihydroxy-7-(1-methylethyl)-1a-phenyl-7a-[(phenylamino)carbonyl]-3H-oxireno[3,4]pyrrolo[2,1-b][1,3]oxazine-3-butanoic Acid Sodium Salt (1:1). CAS No. 1315629-79-8. IUPAC Name: sodium;4-[1b-(4-fluorophenyl)-7-hydroxy-1a-phenyl-7a-(phenylcarbamoyl)-7-propan-2-yl-4,5-dihydro-3H-oxireno[1,2]pyrrolo[3,5-b][1,3]oxazin-3-yl]-3-hydroxybutanoate. Molecular Formula: C33H34FN2O7.Na. Mole Weight: 612.62. Catalog: APS1315629798. SMILES: [Na+]. CC (C)C1 (O)N2CCC (CC (O)CC (=O)[O-])OC2 (c3ccc (F)cc3)C4 (OC14C (=O)Nc5ccccc5)c6ccccc6. Format: Neat. Alfa Chemistry Analytical Products
Atorvastatin Cyclic Sodium Salt (Isopropyl) Impurity Atorvastatin Cyclic Sodium Salt (Isopropyl) Impurity. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 7-(4-Fluorophenyl)hexahydro-beta,7-dihydroxy-1b-(1-methylethyl)-7a-phenyl-1a-[(phenylamino)carbonyl]-3H-oxireno[3,4]pyrrolo[2,1-b][1,3]oxazine-3-butanoic Acid Sodium Salt (1:1). CAS No. 1316291-19-6. IUPAC Name: sodium;4-[7-(4-fluorophenyl)-7-hydroxy-7a-phenyl-1a-(phenylcarbamoyl)-1b-propan-2-yl-4,5-dihydro-3H-oxireno[1,2]pyrrolo[4,5-b][1,3]oxazin-3-yl]-3-hydroxybutanoate. Molecular Formula: C33H34FN2O7.Na. Mole Weight: 612.62. Catalog: APS1316291196. SMILES: [Na+]. CC (C)C12OC (CC (O)CC (=O)[O-])CCN1C (O) (c3ccc (F)cc3)C4 (OC24C (=O)Nc5ccccc5)c6ccccc6. Format: Neat. Alfa Chemistry Analytical Products
Atorvastatin Defluorinated Impurity (Atorvastatin Impurity 5) Atorvastatin Defluorinated Impurity (Atorvastatin Impurity 5). Uses: For analytical and research use. Group: Impurity standards. CAS No. 1105067-91-1. Molecular Formula: C40H48N2O5. Mole Weight: 636.83. Catalog: APB1105067911. Alfa Chemistry Analytical Products
Atorvastatin EP Impurity E Sodium Salt Atorvastatin EP Impurity E Sodium Salt. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1428118-38-0. Molecular Formula: C33H34FN2NaO5. Mole Weight: 580.63. Catalog: APB1428118380. Alfa Chemistry Analytical Products
Atorvastatin EP Impurity H Atorvastatin EP Impurity H. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 5-(4-fluorophenyl)-1-(2-((2R,4R)-4-hydroxy-6-oxotetrahydro-2H-pyran-2-yl)ethyl)-2-isopropyl-N,4-diphenyl-1H-pyrrole-3-carboxamide. CAS No. 125995-03-1. Molecular Formula: C33H33FN2O4. Mole Weight: 540.62. Catalog: APB125995031. Alfa Chemistry Analytical Products
Atorvastatin EP Impurity J Atorvastatin EP Impurity J. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1105067-93-3. Molecular Formula: C33H33FN2O4. Mole Weight: 540.64. Catalog: APB1105067933. Alfa Chemistry Analytical Products
Atorvastatin Epoxydione Impurity Atorvastatin Epoxydione Impurity. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: Atorvastatin USP RC D, Atorvastatin USP Related Compound D, Atorvastatin Imp. D (EP), 3-[(4-Fluorophenyl)carbonyl]-2-(2-methylpropanoyl)-N,3-diphenyloxirane-2-carboxamide,Atorvastatin Calcium Trihydrate Imp. D (EP). CAS No. 148146-51-4. IUPAC Name: 3-(4-fluorobenzoyl)-2-(2-methylpropanoyl)-N,3-diphenyloxirane-2-carboxamide. Molecular Formula: C26H22FNO4. Mole Weight: 431.46. Catalog: APS148146514. SMILES: CC (C)C (=O)C1 (OC1 (C (=O)c2ccc (F)cc2)c3ccccc3)C (=O)Nc4ccccc4. Format: Neat. Alfa Chemistry Analytical Products
Atorvastatin Epoxy Pyrrolooxazin 6-hydroxy analog Atorvastatin Epoxy Pyrrolooxazin 6-hydroxy analog. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 873950-17-5(free acid); sodium 4-(7-(4-fluorophenyl)-7-hydroxy-1b-isopropyl-7a-phenyl-1a-(phenylcarbamoyl)hexahydro-1aH-oxireno[2',3':3,4]pyrrolo[2,1-b][1,3]oxazin-3-yl)-3-hydroxybutanoate. CAS No. 1316291-19-6. Molecular Formula: C33H34FN2O7·Na. Mole Weight: 614.65. Catalog: APB1316291196. Alfa Chemistry Analytical Products
Atorvastatin Epoxy Pyrrolooxazin 7-hydroxy analog Atorvastatin Epoxy Pyrrolooxazin 7-hydroxy analog. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: sodium 4-(1b-(4-fluorophenyl)-7-hydroxy-7-isopropyl-1a-phenyl-7a-(phenylcarbamoyl)hexahydro-1aH-oxireno[2',3':3,4]pyrrolo[2,1-b][1,3]oxazin-3-yl)-3-hydroxybutanoate. CAS No. 1315629-79-8. Molecular Formula: C33H34FN2NaO7. Mole Weight: 612.62. Catalog: APB1315629798. Alfa Chemistry Analytical Products
Atorvastatin Impurity 15 Atorvastatin Impurity 15. Uses: For analytical and research use. Group: Impurity standards. CAS No. 125971-94-0. Molecular Formula: C14H23NO4. Mole Weight: 269.34. Catalog: APB125971940. Alfa Chemistry Analytical Products
Atorvastatin Impurity 20 Atorvastatin Impurity 20. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: Atorvastatin Acetonide tert-Butyl Ester; tert-butyl 2-((4R,6R)-6-(2-(2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl)ethyl)-2,2-dimethyl-1,3-dioxan-4-yl)acetate. CAS No. 125971-95-1. Molecular Formula: C40H47FN2O5. Mole Weight: 654.81. Catalog: APB125971951. Alfa Chemistry Analytical Products
Atorvastatin Impurity 21 Atorvastatin Impurity 21. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (3R,5R)-isopropyl 7-(2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl)-3,5-dihydroxyheptanoate. CAS No. 1035205-25-4. Molecular Formula: C36H41FN2O5. Mole Weight: 600.72. Catalog: APB1035205254. Alfa Chemistry Analytical Products
Atorvastatin Impurity 31 Atorvastatin Impurity 31. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: tert-butyl 2-((4S,6R)-6-(2-aminoethyl)-2,2-dimethyl-1,3-dioxan-4-yl)acetate. CAS No. 1105067-89-7. Molecular Formula: C14H27NO4. Mole Weight: 273.37. Catalog: APB1105067897. Alfa Chemistry Analytical Products
Atorvastatin Impurity 41 Atorvastatin Impurity 41. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: tert-butyl 2-((4R,6S)-6-(cyanomethyl)-2,2-dimethyl-1,3-dioxan-4-yl)acetate. CAS No. 196085-84-4. Molecular Formula: C14H23NO4. Mole Weight: 269.34. Catalog: APB196085844. Alfa Chemistry Analytical Products
Atorvastatin Impurity 42 Atorvastatin Impurity 42. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: tert-butyl 2-((4S,6S)-6-(cyanomethyl)-2,2-dimethyl-1,3-dioxan-4-yl)acetate. CAS No. 196085-85-5. Molecular Formula: C14H23NO4. Mole Weight: 269.34. Catalog: APB196085855. Alfa Chemistry Analytical Products
Atorvastatin Impurity 43 Atorvastatin Impurity 43. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1403667-07-1. Molecular Formula: C14H9Cl2FO. Mole Weight: 283.12. Catalog: APB1403667071. Alfa Chemistry Analytical Products
Atorvastatin Impurity 44 Atorvastatin Impurity 44. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: methyl 2-((4R,6R)-6-(2-(2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl)ethyl)-2,2-dimethyl-1,3-dioxan-4-yl)acetate. CAS No. 1353049-81-6. Molecular Formula: C37H41FN2O5. Mole Weight: 612.73. Catalog: APB1353049816. Alfa Chemistry Analytical Products
Atorvastatin Impurity 49 Atorvastatin Impurity 49. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 4-(4-fluorophenyl)-5-(2-((2R,4R)-4-hydroxy-6-oxotetrahydro-2H-pyran-2-yl)ethyl)-6-isopropyl-N,2-diphenyl-3,7-dioxa-5-azatricyclo[4.1.0.02,4]heptane-1-carboxamide. CAS No. 1046118-40-4. Molecular Formula: C33H33FN2O6. Mole Weight: 572.62. Catalog: APB1046118404. Alfa Chemistry Analytical Products
Atorvastatin Impurity 50 Atorvastatin Impurity 50. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (R)-tert-butyl 7-(2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl)-5-hydroxy-3-oxoheptanoate. CAS No. 134394-98-2. Molecular Formula: C37H41FN2O5. Mole Weight: 612.73. Catalog: APB134394982. Alfa Chemistry Analytical Products
Atorvastatin Impurity 52 Atorvastatin Impurity 52. Uses: For analytical and research use. Group: Impurity standards. CAS No. 134523-03-8. Molecular Formula: C66H68CaF2N4O10. Mole Weight: 1155.36. Catalog: APB134523038. Alfa Chemistry Analytical Products
Atorvastatin Impurity 54 Atorvastatin Impurity 54. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1050631-82-7. Molecular Formula: C24H21F2NO3. Mole Weight: 409.43. Catalog: APB1050631827. Alfa Chemistry Analytical Products
Atorvastatin Impurity 58 Atorvastatin Impurity 58. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (3S,5S)-tert-butyl 7-(2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl)-3,5-dihydroxyheptanoate. CAS No. 1428118-12-0. Molecular Formula: C37H43FN2O5. Mole Weight: 614.75. Catalog: APB1428118120. Alfa Chemistry Analytical Products
Atorvastatin Impurity 64 Atorvastatin Impurity 64. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (3R,5R)-tert-butyl 6-cyano-3,5-dihydroxyhexanoate. CAS No. 125971-93-9. Molecular Formula: C11H19NO4. Mole Weight: 229.13. Catalog: APB125971939. Alfa Chemistry Analytical Products
Atorvastatin Impurity 65 Atorvastatin Impurity 65. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (R)-tert-butyl 6-cyano-5-hydroxy-3-oxohexanoate. CAS No. 125988-01-4. Molecular Formula: C11H17NO4. Mole Weight: 227.26. Catalog: APB125988014. Alfa Chemistry Analytical Products
Atorvastatin Impurity 68 Atorvastatin Impurity 68. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: isopropyl 2-((4R,6R)-6-(2-(2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl)ethyl)-2,2-dimethyl-1,3-dioxan-4-yl)acetate. CAS No. 1112262-71-1. Molecular Formula: C39H45FN2O5. Mole Weight: 640.33. Catalog: APB1112262711. Alfa Chemistry Analytical Products
Atorvastatin Impurity 71 Atorvastatin Impurity 71. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: tert-butyl 2-((4S,6R)-6-(cyanomethyl)-2,2-dimethyl-1,3-dioxan-4-yl)acetate. CAS No. 186508-95-2. Molecular Formula: C14H23NO4. Mole Weight: 269.34. Catalog: APB186508952. Alfa Chemistry Analytical Products
Atorvastatin Impurity 79 Atorvastatin Impurity 79. Uses: For analytical and research use. Group: Impurity standards. CAS No. 125971-96-2. Molecular Formula: C26H24FNO3. Mole Weight: 417.48. Catalog: APB125971962. Alfa Chemistry Analytical Products
Atorvastatin Impurity E Atorvastatin Impurity E. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: calcium (3S,5S)-7-(2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl)-3,5-dihydroxyheptanoate. CAS No. 1105067-88-6. Molecular Formula: C66H68CaF2N4O10. Mole Weight: 1155.34. Catalog: APB1105067886. Alfa Chemistry Analytical Products
Atorvastatin Impurity F calcium salt Atorvastatin Impurity F calcium salt. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (3R,5R)-7-[[(3R,5R)-7-[2-(4-fluorophenyl)-5-(1-methylethyl)-3-phenyl-4-[(phenylamino)carbonyl]-1H-pyrrol-1-yl]-3,5-dihydroxy-1-oxoheptyl]amino]-3,5-dihydroxy-heptanoic acid calcium salt. CAS No. 1105067-87-5. Molecular Formula: C40H47FN3O8·1/2Ca. Mole Weight: 736.87. Catalog: APB1105067875. Alfa Chemistry Analytical Products
Atorvastatin Impurity F (Sodium salt) Atorvastatin Impurity F (Sodium salt). Uses: For analytical and research use. Group: Impurity standards. Alternative Names: sodium (3R,5R)-7-((3R,5R)-7-(2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl)-3,5-dihydroxyheptanamido)-3,5-dihydroxyheptanoate. CAS No. 1371615-56-3. Molecular Formula: C40H47FN3NaO8. Mole Weight: 739.80. Catalog: APB1371615563. Alfa Chemistry Analytical Products
Atorvastatin Impurity O reference substance Atorvastatin Impurity O reference substance. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (3R,5R)-tert-butyl 7-(2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl)-3,5-dihydroxyheptanoate. CAS No. 134395-00-9. Molecular Formula: C37H43FN2O5. Mole Weight: 614.75. Catalog: APB134395009. Alfa Chemistry Analytical Products
Atorvastatin L1 Diastereomer (Atorvastatin Impurity 17) Atorvastatin L1 Diastereomer (Atorvastatin Impurity 17). Uses: For analytical and research use. Group: Impurity standards. CAS No. 1105067-90-0. Molecular Formula: C40H47FN2O5. Mole Weight: 654.82. Catalog: APB1105067900. Alfa Chemistry Analytical Products
Atorvastatin Oxirane Impurity Atorvastatin Oxirane Impurity. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 3-(4-fluorobenzoyl)-2-isobutyl-N,3-diphenyloxirane-2-carboxamide. CAS No. 1246818-88-1. Molecular Formula: C26H24FNO3. Mole Weight: 417.47. Catalog: APB1246818881. Alfa Chemistry Analytical Products
Atracurium Impurity 36 Atracurium Impurity 36. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: DL-Laudanosine; 1-(3,4-dimethoxybenzyl)-6,7-dimethoxy-2-methyl-1,2,3,4-tetrahydroisoquinoline. CAS No. 1699-51-0. Molecular Formula: C21H27NO4. Mole Weight: 357.44. Catalog: APB1699510. Alfa Chemistry Analytical Products
Atracurium Impurity A Atracurium Impurity A. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (1R,2R)-2-(2-carboxyethyl)-1-(3,4-dimethoxybenzyl)-6,7-dimethoxy-2-methyl-1,2,3,4-tetrahydroisoquinolin-2-ium. CAS No. 1075727-04-6. Molecular Formula: C24H32NO6. Mole Weight: 430.51. Catalog: APB1075727046. Alfa Chemistry Analytical Products
Atracurium Impurity F Atracurium Impurity F. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (1R,2R)-1-(3,4-dimethoxybenzyl)-2-(3-((5-hydroxypentyl)oxy)-3-oxopropyl)-6,7-dimethoxy-2-methyl-1,2,3,4-tetrahydroisoquinolin-2-ium. CAS No. 1100676-15-0. Molecular Formula: C29H42NO7. Mole Weight: 516.65. Catalog: APB1100676150. Alfa Chemistry Analytical Products
Atropine EP Impurity D (Hyoscyamine EP Impurity B) Atropine EP Impurity D (Hyoscyamine EP Impurity B). Uses: For analytical and research use. Group: Impurity standards. CAS No. 126371-43-5. Molecular Formula: C17H23NO4. Mole Weight: 305.37. Catalog: APB126371435. Alfa Chemistry Analytical Products
Atropine sulfate EP Impurity B Atropine sulfate EP Impurity B. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (R)-(1R,3r,5S)-8-azabicyclo[3.2.1]octan-3-yl 3-hydroxy-2-phenylpropanoate. CAS No. 195609-35-9. Molecular Formula: C16H21NO3. Mole Weight: 275.34. Catalog: APB195609359. Alfa Chemistry Analytical Products
Atropine Sulfate EP Impurity B Atropine Sulfate EP Impurity B. Uses: For analytical and research use. Group: Impurity standards. CAS No. 16839-98-8. Molecular Formula: C16H21NO3. Mole Weight: 275.35. Catalog: APB16839988. Alfa Chemistry Analytical Products
Atropine Sulfate EP Impurity E Atropine Sulfate EP Impurity E. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1701466-10-5. Molecular Formula: C17H23NO4. Mole Weight: 305.37. Catalog: APB1701466105. Alfa Chemistry Analytical Products
Auristatin E Auristatin E. Uses: For analytical and research use. Group: Impurity standards. CAS No. 160800-57-7. Molecular Formula: C40H69N5O7. Mole Weight: 732.02. Catalog: APB160800577. Alfa Chemistry Analytical Products
Automatic fusion machine for XRF Automatic fusion machine for XRF. Uses: For analytical and research use. Group: Equipment for sample preparation. Catalog: APS005934. Shipping: Room Temperature. Alfa Chemistry Analytical Products
Avanafil Impurity 10 Avanafil Impurity 10. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1562434-91-6. Molecular Formula: C14H14ClN3O4S. Mole Weight: 355.79. Catalog: APB1562434916. Alfa Chemistry Analytical Products
Avanafil Impurity 2 Avanafil Impurity 2. Uses: For analytical and research use. Group: Impurity standards. CAS No. 211230-35-2. Molecular Formula: C16H19N3O3S. Mole Weight: 333.41. Catalog: APB211230352. Alfa Chemistry Analytical Products
Avanafil Impurity 29 Avanafil Impurity 29. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1364671-52-2. Molecular Formula: C19H19ClN6O3S. Mole Weight: 446.91. Catalog: APB1364671522. Alfa Chemistry Analytical Products
Avanafil Impurity 52 Avanafil Impurity 52. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1711677-06-3. Molecular Formula: C20H23ClN4O5. Mole Weight: 434.88. Catalog: APB1711677063. Alfa Chemistry Analytical Products

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