(3R,5R)-Rosuvastatin (calcium salt)

(3R,5R)-Rosuvastatin is a potential impurity found in bulk preparations of the HMG-CoA reductase inhibitor rosuvastatin. It is a degradation product formed by acid or base hydrolysis, thermal, photolytic, hydrolytic, or oxidative stress, or during storage.Formal Name: (3R,5R,6E)-7-[4-(4-fluorophenyl)-6-(1-methylethyl)-2-[methyl(methylsulfonyl)amino]-5-pyrimidinyl]-3,5-dihydroxy-6-heptenoic acid, hemicalcium salt. CAS Number: 1422515-55-6. Molecular Formula: C22H28FN3O6S . 1/2Ca. Formula Weight: 500.6. Purity: >95%. Formulation: (Request formulation change), A solid. Solubility: Ethanol: soluble. lambdamax: 242, 310 nm. SMILES: CS(N(C)C1=NC(C(C)C)=C(C(C2=CC=C(C=C2)F)=N1)/C=C/[C@H](O)C[C@@H](O)CC([O-])=O)(=O)=O.CS(N(C)C3=NC(C(C)C)=C(C(C4=CC=C(C=C4)F)=N3)/C=C/[C@H](O)C[C@@H](O)CC([O-])=O)(=O)=O.[Ca+2]. InChi Code: InChI=1S/2C22H28FN3O6S.Ca/c2*1-13(2)20-18(10-9-16(27)11-17(28)12-19(29)30)21(14-5-7-15(23)8-6-14)25-22(24-20)26(3)33(4,31)32,/h2*5-10,13,16-17,27-28H,11-12H2,1-4H3,(H,29,30),/q,,+2/p-2/b2*10-9+,/t2*16-,17+,/m00./s1. InChi Key: LALFOYNTGMUKGG-UJPABJLRSA-L.