CAS 1149-23-1 appears in our catalog under these names: Nicotinic Acid Impurity 19, Diethyl 1,4-dihydro-2,6-dimethylpyridine-3,5-dicarboxylate, . Offered by: Hubei YoungXin, Thermo Scientific (Alfa Aesar). Available pack sizes: 10mg, 25mg, 50mg, 100mg, 200mg, 1g, 5g.