(-)-Nigaldipine hydrochloride (R)-Nigaldipine hydrochloride (S)-(+)-Watanidipine hydrochloride (S)-AE0047 189624-85-9 3,5-Pyridinedicarboxylic acid, 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)-, 2-(4-(4-(diphenylmethyl)-1-piperazinyl)phenyl)ethyl methyl ester, dihydrochloride, (S)-(+)- B 8509-035 B 859-35 BY 935 Dexniguldipine hydrochloride Watanidipine hydrochloride (S)-enantiomer