L-Pyroglutamic acid 货号:B200004 英文名:L-Pyroglutamic acid 同义词:(S)-(−)-2-Pyrrolidone-5-carboxylic acid (S)-5-Oxo-2-pyrrolidinecarboxylic acid CAS号:98-79-3 分子式:C5H7NO3 分子量:129.11 黄金现货 询价订购