头孢丙烯EP杂质K 货号:C065014 英文名:Cefprozil EP Impurity K 同义词:3-((2R,5R)-5-ethyl-7-oxo-2,4,5,7-tetrahydro-1H-furo[3,4-d][1,3]thiazin-2-yl)-6-(4-hydroxyphenyl)piperazine-2,5-dione CAS号:N/A 分子式:C18H19N3O5S 分子量:389.43 询价订购