672-67-3
2H-吡喃-2-酮-6-羧酸
→
~99%
75611-67-5
6-oxopyran-2-carbonyl chloride
30113-77-0
874531-13-2
5-oxo-hex-2-enedioic acid diethyl ester
5388-42-1
2,3-二氢-2-苯基-1H-异吲哚-1-酮
68160-93-0
methyl 6-oxopyran-2-carboxylate