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
Tributyl phosphate 标准品
Acetochlor OA
PCBNO.189
Pyrethrum
甲醇中Fenitrothion Solution
GPC标样-聚丙烯(Mw 50400)(宽MWD) 标准品
乙酸乙酯中锐劲特溶液标准样品-氟虫腈
2-甲基-4-异噻唑啉-3-酮-D3
153种农药-2015版药典混标-2
Diethatyl ethyl Solution 100ug/ml in Methanol