英文别名(S)-2-(2-(2-(2-Aminopropanamido)acetamido)acetamido)acetic acid; 2-[[2-[[2-[[(2S)-2-aminopropanoyl]amino]acetyl]amino]acetyl]amino]acetic acid; Glycine,N-[N-(N-L-alanylglycyl)glycyl]; Glycine, L-alanylglycylglycyl-; l-Alanylglycylglycylglycine; Ala-Gly-Gly-Gly 
