(2,4'-Bipyridine)-3',5'-dicarboxylic acid, 1',4'-dihydro-2',6'-dimethyl-, 1-methylethyl 2-(4-methylphenyl)ethyl ester 122508-12-7 3-Isopropyl-5-(4-methylphenethyl)-1,4-dihydro-2,6-dimethyl-4-(2-pyridyl)-3,5-pyridinecarboxylate AK 2 38 AK 2-38