2-[(2-phenylhydrazino)carbonyl]benzoic acid

1,2,3-triphenylpropane-1,3-dione

diethyl 7-oxobenzo[7]annulene-6,8-dicarboxylate

9-乙氧基甲基-4-甲酰基-3,8-二羟基-1,6-二甲基-11-氧代二苯并[b,e][1,4]二氧杂卓-7-羧酸

diethyl phenyl phosphite