1-(4-甲基苯甲酰)-1H-苯并三唑

p-toluimidic acid methyl ester

di-p-toluoyl-amine

水

[4-(4-methylbenzoyl)-5-oxido-1,2,5-oxadiazol-5-ium-3-yl]-(4-methylphenyl)methanone