ub Group: Heterocyclic Compounds Catalog Number: D12436 Enrichment: 98%D Formula: C12H7D5N2O3 Molecular Weight: 237.27 Synonyms: 1-(Ethyl-d5)-1,4-dihydro-7-methyl-4-oxo-1,8-naphthyridine-3-carboxylic Acid1,4-Dihydro-1-(ethyl-d5)-7-methyl-4-oxo-1,8-naphthy