(4S)-2-[(2-Aminoethoxy)methyl]-4-(2-chlorophenyl)-1,4-dihydro-6-methyl-3,5-pyridinedicarboxylic Acid 3-Ethyl 5-Methyl Ester Di-p-Tolyoyl-D-tartrate; (-)-Amlodipine Di-p-Tolyoyl-D-tartrate; (S)-(+)-Amlodipine Di-p-Tolyoyl-D-tartrate;

(S)-Enantiomer of Amlodipine. A dihydropyridine calcium channel blocker; activity resides mainly in the (-)-isomer.