Butyric acid, 4-(benzoyl((cyclopentyl(4, 5-dihydro-1H-imidazol-2-yl)amino)methyl)amino)-

Butyric acid, 4-(bis(2-chloroethyl)amino)-, 2, 4, 6-trinitrobenzenesulfonate

Butyric acid, 4-(butylnitrosoamino)-3-hydroxy-

Butyric acid, 4-(diethylamino)-

Butyric acid, 4-(diethylamino)-, methyl ester, hydrobromide

Butyric acid, 4-(dimethylamino)-, methyl ester

Butyric acid, 4-(dimethylamino)-2, 2-diphenyl-1-ethylpentyl ester, alpha-dl-

Butyric acid, 4-(ethylnitrosoamino)-

Butyric acid, 4-(m-(3-amino-2, 4, 6-triiodobenzamido)phenyl)-

Butyric acid, 4-(methylethoxycarbonylamino)-2-mercapto-4-oxo-, ethyl ester, S-ester with O, O-diethyl phosphorodithioate

Butyric acid, 4-(methylethoxycarbonylamino)-2-mercapto-4-oxo-, ethyl ester, S-ester with O, O-dimethyl phosphorodithioate

Butyric acid, 4-(N-(alpha, alpha, alpha-trifluoro-m-tolyl)acetamido)-

Butyric acid, 4-(N-(m-chlorophenyl)acetamido)-

Butyric acid, 4-(N-nitrosopentylamino)-

Butyric acid, 4-(N-nitrosopropylamino)-

Butyric acid, 4-(o-(3, 4-dichloro-N-methylbenzamido)phenyl)-

Butyric acid, 4-(o-(4-chloro-N-methylbenzamido)phenyl)-

Butyric acid, 4-(o-chloro-N-2, 6-xylylbenzamido)-

Butyric acid, 4-(o-chlorophenoxy)-

Butyric acid, 4-(p-(((2, 4-diamino-6-pteridinyl)methyl)methylamino)benzamido)-