2-hydrazinyl-2-oxoacetic acid

4-苯氧基苯甲酰基甲酸乙酯

(2,3-dimethyl-4-oxa-3,4,5,6-tetrahydro-2H-2,6-methano-benz[g][1,3]oxazocin-5-yl)-glyoxylic acid ethyl ester

5-甲氧基-6,8-二甲基-1-氧代-四氢萘-2-羧酸乙酯

N,N'-Bis(p-methoxyphenyl)-terephthalamid