匹美西林EP杂质A 货号:P105001 英文名:Pivmecillinam EP Impurity A 同义词:(2S,5R,6R)-(pivaloyloxy)methyl 6-amino-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate CAS号:N/A 分子式:C14H22N2O5S 分子量:330.40 询价订购