头孢噻吩杂质B 货号:C080002 英文名:Cefalotin Impurity B 同义词:(6R,7R)-3-(hydroxymethyl)-8-oxo-7-(2-(thiophen-2-yl)acetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid CAS号:5935-65-9 分子式:C14H14N2O5S2 分子量:354.4 询价订购