Not Less Than - 95%
Amlodipine Impurity 18; 3-O-Desethyl-5-O-desmethyl Amlodipine; 2-[(2-Aminoethoxy)methyl]-4-(2-chlorophenyl)-1,4-dihydro-6-methyl-3,5-pyridinedicarboxylic Acid; Amlodipine Diacid;