氯唑西林钠EP杂质B 货号:C120002 英文名:Cloxacillin Sodium EP Impurity B 同义词:(4S)-2-((3-(2-chlorophenyl)-5-methylisoxazole-4-carboxamido)methyl)-5,5-dimethylthiazolidine-4-carboxylic acid CAS号:N/A 分子式:C18H20ClN3O4S 分子量:409.89 询价订购