.beta.-Alanine, N,N-diethyl-, 2-[2-[(1-oxo-2-propenyl)oxy]ethoxy]ethyl ester
.beta.-Alanine, N,N-diethyl-, 6-[(1-oxo-2-propenyl)oxy]hexyl ester
.beta.-Alanine, N-(2-carboxyethyl)-N-(2-ethylhexyl)-, sodium salt (1:1)
.beta.-Alanine, N-(2-carboxyethyl)-N-dodecyl-, disodium salt
.beta.-Alanine, N-(2-carboxyethyl)-N-nitro-
.beta.-Alanine, N-(2-carboxyethyl)-N-[2-(2-heptyl-4,5-dihydro-1H-imidazol-1-yl)ethyl]-
.beta.-Alanine, N-(2-carboxyethyl)-N-[3-(decyloxy)propyl]-, monosodium salt
.beta.-Alanine, N-(2-cyanoethyl)-N-phenyl-, methyl ester
.beta.-Alanine, N-(2-cyanoethyl)-N-[4-[(2-cyano-4-nitrophenyl)azo]phenyl]-, methyl ester
.beta.-Alanine, N-(2-methoxy-5-nitrophenyl)-, 2-methoxyethyl ester
.beta.-Alanine, N-(3-methoxy-3-oxopropyl)-N-phenyl-, methyl ester
.beta.-Alanine, N-ethyl-N-phenyl-, methyl ester
.beta.-Alanine, N-ethyl-N-[4-[(5-nitro-2,1-benzisothiazol-3-yl)azo]phenyl]-, methyl ester
.beta.-Alanine, N-[3-(acetylamino)-4-[(2-cyano-4-nitrophenyl)azo]phenyl]-N-ethyl-, methyl ester
.beta.-Alanine, N-[3-(acetylamino)phenyl]-N-(3-methoxy-3-oxopropyl)-, methyl ester
.beta.-Alanine, N-[4-(cyclohexylamino)-9,10-dihydro-9,10-dioxo-1-anthracenyl]-
.beta.-Alanine, N-[4-[(2-chloro-4-nitrophenyl)azo]phenyl]-N-(2-cyanoethyl)-, methyl ester
.beta.-Alanine, N-[5-(acetylamino)-2-methoxyphenyl]-, 2-methoxyethyl ester
.beta.-Alanine, N-[5-(acetylamino)-2-methoxyphenyl]-, ethyl ester
.beta.-Alanine, N-[5-(acetylamino)-2-methoxyphenyl]-, methyl ester
.beta.-Alanine, N-[5-(acetylamino)-2-methoxyphenyl]-N-(2-hydroxyethyl)-, ethyl ester
.beta.-Alanine, N-[5-(acetylamino)-2-methoxyphenyl]-N-ethyl-, 2-methoxyethyl ester
.beta.-Alanine, N-[5-(acetylamino)-2-methoxyphenyl]-N-[2-(acetyloxy)ethyl]-, methyl ester
