pranidipine pranidipine pranidipine is a calcium channel blocker. it is a long acting calcium channel antagonist of the dihydropyridine group. pranidipine names preferred iupac name methyl (2e)-3-phenylprop-2-en-1-yl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate other names 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylic acid o5-methyl o3- ester identifiers cas number 99522-79-9 y 3d model (jsmol) interactive image chembl chembl1096842 n chemspider 4940726 n mesh c048161 pubchem cid 6436048 unii 9des9qvh58 y comptox dashboard (epa) dtxsid00875518 inchi inchi=1s/c25h24n2o6/c1-16-21(24(28)32-3)23(19-12-7-13-20(15-19)27(30)31)22(17(2)26-16)25(29)33-14-8-11-18-9-5-4-6-10-18/h4-13,15,23,26h,14h2,1-3h3/b11-8+ nkey: xtfpdgznwtzcmf-dhzhzojosa-n ninchi=1/c25h24n2o6/c1-16-21(24(28)32-3)23(19-12-7-13-20(15-19)27(30)31)22(17(2)26-16)25(29)33-14-8-11-18-9-5-4-6-10-18/h4-13,15,23,26h,14h2,1-3h3/b11-8+key: xtfpdgznwtzcmf-dhzhzojoba smiles cc1=c(c(c(=c(n1)c)c(=o)occ=cc2=cc=cc=c2)c3=cc(=cc=c3)(=o))c(=o)oc properties chemical formula c25h24n2o6 molar mass 448.46786 except where otherwise noted, data are given for materials in their standard state (at 25 °c , 100 kpa). n verify (what is yn ?) infobox references