苯丁酸甘油酯杂质4 货号:G042004 英文名:Glycerol phenylbutyrate Impurity 4 同义词:propane-1,2,3-triyl tris(3-phenylpropanoate) CAS号:N/A 分子式:C30H32O6 分子量:488.57 询价订购