Butanoic acid methyl ester 丁酸甲酯 ; 正丁酸甲酯 ; 甲酯

4-methoxy-3-oxo-butanoic acid methyl ester 甲氧基乙酰乙酰甲酯

bromo-butanoic acid methyl ester 溴丁酸甲酯

chloro-3-oxo-butanoic acid methyl ester 氯乙酰乙酸甲酯

2-bromo-butanoic acid methyl ester 溴丁酸甲酯

2-chloro-3-oxo-butanoic acid methyl ester 氯乙酰乙酸甲酯

4-chloro-butanoic acid methyl ester 甲基氯丁酯

2-methyl-butanoic acid 1-methylethyl ester 甲基丁酸

2-amino-2-methyl-butanoic acid 氨基