28101-20-4
4-[bis(carboxymethyl)amino]butanoic acid
2937-01-1
4-[(2-phenylacetyl)amino]butanoic acid
2609-10-1
4-脲基丁酸
28733-15-5
trimethylsilyl 4-isothiocyanatobutanoate
819-46-5
4,4,4-三氟丁胺

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