Sub Group: Heterocyclic Compounds Catalog Number: 12435 Formula: C12H12N2O3 CAS Number: 389-08-2 Molecular Weight: 232.24 Synonyms: 1-Ethyl-1,4-dihydro-7-methyl-4-oxo-1,8-naphthyridine-3-carboxylic Acid1,4-Dihydro-1-ethyl-7-methyl-4-oxo-1,8-naphthyridine-