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
农残混标1804
2,4,4'-Trichlorobiphenyl 99% (BZ# 28) 标准品
丙酮中对硫磷标准溶液
a.a'-Dibromo-m-xylene Solution 100ug/ml in Hexane
氟氯氰菊酯
Eudalene
HISTIDINE, D-(RG) 标准品
1-(4-Hydroxyphenyl)ethanone?
First Standard® 抑草生
Acetamiprid