青霉素V钾EP杂质E 货号:P080001 英文名:Penicillin V EP Impurity E 同义词:(4S)-2-(carboxy(2-phenoxyacetamido)methyl)-5,5-dimethylthiazolidine-4-carboxylic acid CAS号:N/A 分子式:C16H20N2O6S 分子量:368.10 询价订购