Butanoic acid, 4-(2-pyrrolidinylideneamino)-

Butanoic acid, 4-(3, 4-dichlorophenoxy)-

Butanoic acid, 4-(3, 5-dihydroxy-4-(3-(3-hydroxy-4-methoxyphenyl)-1-oxopropyl)phenoxy)-, monopotassium salt

Butanoic acid, 4-(3, 5-dihydroxy-4-(3-(3-hydroxy-4-methoxyphenyl)-1-oxopropyl)phenoxy)-2-sulfo-, potassium salt

butanoic acid, 4-(3-carboxypropylnitrosoamino)-

Butanoic acid, 4-(3-chlorophenoxy)-

Butanoic acid, 4-(3-chlorophenoxy)-, ethyl ester

Butanoic acid, 4-(3-oxobutyl)phenyl ester

Butanoic acid, 4-(4-chloro-2-methylphenoxy)-, (1-cyanoethyl)dimethylsilyl ester

Butanoic acid, 4-(4-cyclohexylphenyl)-2-methyl-4-oxo-

Butanoic acid, 4-(4-hydroxybutylnitrosamino)-

Butanoic acid, 4-(4-sulfophenoxy)-, 1-(2-hydroxyethyl) ester, sodium salt (1:1)

Butanoic acid, 4-(4-sulfophenoxy)-, sodium salt (1:1)

Butanoic acid, 4-(4-sulfophenoxy)-, sodium salt (1:2)

Butanoic acid, 4-(acetylamino)-, 2-(dimethoxyphosphinyl)ethyl ester

Butanoic acid, 4-(acetylamino)-, 3-(dimethoxyphosphinyl)propyl ester

Butanoic acid, 4-(benzoylamino)- (9CI)

Butanoic acid, 4-(benzoylamino)-4-oxo-

Butanoic acid, 4-(butyldichlorostannyl)-

Butanoic acid, 4-(butylnitroamino)-