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First Standard® 甲醇中吡嘧磷溶液,100μg/mL
p-Nitrocinnamic acid (无证书)
Methyl Derivatives of Chlorinated Herbicides 标准品
Daminozide Solution in Acetonitrile
p-Thiocresol
Method 527 Pesticide Standard B 标准品
异狄氏剂(13C12, 99%) 标准品
PUNYW25724173 Butamirate Impurity 1
Adamantane-d16
δ-BHC农药纯度分析标准物质