2-羟基-3-膦酰氧基丙酸

N,N'-L-cystyl-bis-(N-glycyl-glycine )

(H-CYS-GLY-OH)2

N-[2-[(2-氨基-2-氧代乙基)氨基]-2-羧基乙基]-L-天冬氨酸

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