Atorvastatin Calcium
C66H68CaF2N4O10
1155.36
1H-Pyrrole-1-heptanoic acid, 2-(4-fluorophenyl)-β,δ-dihydroxy-5-(1-methylethyl)-3-phenyl-4-[(phenylami no)carbonyl]-, calcium salt (2:1), [R- (R*,R*)]-;
Calcium (βR,δR)-2-(p-fluorophenyl)-β,δ-dihydroxy-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)pyrrole-1-heptanoate (1:2);
[(3R,5R)-7-[3-(Phenylcarbamoyl)-5-(4-fluorophenyl)-2-isopropyl-4-phenyl-1H-pyrrol-1-yl]-3,5-dihydroxyheptanoic acid, calcium salt]
Anhydrous
[134523-03-8] C66H68CaF2N4O10·3H2O 1209.41
Trihydrate
[344423-98-9] C66H68CaF2N4O10·C3H8O2 Propylene glycol solvate 1231.46
1H-Pyrrole-1-heptanoic acid, 2-(4-fluorophenyl)-β,δ-dihydroxy-5-(1-methylethyl)-3-phenyl-4-[(phenylami no)carbonyl]-, calcium salt (2:1), [R- (R*,R*)]-;
Calcium (βR,δR)-2-(p-fluorophenyl)-β,δ-dihydroxy-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)pyrrole-1-heptanoate (1:2);
[(3R,5R)-7-[3-(Phenylcarbamoyl)-5-(4-fluorophenyl)-2-isopropyl-4-phenyl-1H-pyrrol-1-yl]-3,5-dihydroxyheptanoic acid, calcium salt]
Anhydrous
[134523-03-8] C66H68CaF2N4O10·3H2O 1209.41
Trihydrate
[344423-98-9] C66H68CaF2N4O10·C3H8O2 Propylene glycol solvate 1231.46
DEFINITION
Atorvastatin Calcium contains NLT 98.0% and NMT 102.0% of atorvastatin calcium (C66H68 CaF2N4O10), calculated on the anhydrous and solvent-free basis. If labeled as a propylene glycol solvate, it contains NLT 98.0% and NMT 102.0% of atorvastatin calcium (C66H68CaF2N4O10), calculated on the anhydrous, propylene glycol-free, and solvent-free basis. It may contain a suitable antioxidant.
USP REFERENCE STANDARDS FOR PURCHASE
USP Atorvastatin Calcium RSUSP Atorvastatin Related Compound A RS
USP Atorvastatin Related Compound B RS
USP Atorvastatin Related Compound C RS
USP Atorvastatin Related Compound D RS
USP Atorvastatin Related Compound E RS
USP Atorvastatin Related Compound H RS
USP Atorvastatin Related Compound I RS
USP Atorvastatin Related Compound H RS (lactone impurity)
USP Atorvastatin Related Compound I RS (acetonide impurity)