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2,4,5-Trichlorotoluene Solution 1000ug/ml in Methylene chloride
倍硫磷砜 标准品
Mesitronitrile (无证书)
91336, 2,4-Dinitrophenylhydrazones solut ions 标准品
3-Chlorobenzotrifluoride (无证书)
Propanil Solution in Acetonitrile:Acetone (90:10)
First Standard® 甲苯中蔬果磷溶液,100μg/mL
Butylmesityl oxide oxalate Solution 100ug/ml in Acetonitrile
Tolylfluanide,
石油醚中七氯溶液标准物质