硫唑嘌呤EP杂质D 货号:A048004 英文名:Azathioprine EP Impurity D 同义词:1-methyl-4-nitro-1H-imidazole-5-thiol CAS号:6339-54-4 分子式:C4H5N3O2S 分子量:159.17 询价订购