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
乙酸苄酯溶液,100ppm
伏杀硫磷
Tris(2-chloropropyl)phosphate
1,1,1-Trichloroethane in Methanol (Nominal Mass Fraction, 0.01 g/g)
n-Pentadecylbenzene-d36
LEAD WITH ADDED IMPURITIES (trace elements) 标准品
GBW(E)061412 三聚氰胺
First Standard® 敌枯双
苯妥英钠 含量测定
Ytterbium - Yb2O3, 99.99%, 2% HNO3