如果企业客服不在线,也可拨打400电话联系。或者发布求购信息
3-羟基丁醛(Technical)(无证书)
异土木香内酯 对照品
2,4-滴
茚并(1,2,3-c,d)芘
Washington EPH Matrix Spiking Mixture 250ug/ml in Acetone
Methomyl Solution 100ug/ml in Toluene
4,4'-Dibromodiphenyl ether
2,3',4-Trichlorobiphenyl (无证书)
2-甲基-4-异噻唑啉-3-酮盐酸盐;甲基异噻唑啉酮盐酸盐
烯式吡虫啉