CAS 73257-48-4 appears in our catalog under these names: Dimethyl 2,6-dimethyl-4-(4-methylphenyl)-1,4-dihydropyridine-3,5-dicarboxylate, 95%, dimethyl 2,6-dimethyl-4-(4-methylphenyl)-1,4-dihydropyridine-3,5-dicarboxylate, 95+%. Offered by: Combi-blocks, AmBeed. Available pack sizes: 1g, 5g.