862546-05-2
4-oxo-7-oxy-1,4-dihydro-[1,7]naphthyridine-3-carboxylic acid ethyl ester
→
862546-07-4
4-氧代-1,4-二氢-1,7-萘啶-3-羧酸乙酯
92972-37-7
4-oxo-1H-1,7-naphthyridine-3-carboxylic acid