6-chloro-3-hydroxypyrazine-2-carbonitrile;2-Pyrazinecarbonitrile, 6-chloro-3,4-dihydro-3-oxo-;6-Chloro-3-oxo-3,4-dihydropyrazine-2-carbonitrile
陜西西化化學(xué)工業(yè)有限公司
聯(lián)系商家時請?zhí)峒癱hemicalbook,有助于交易順利完成!
締都醫(yī)藥