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4-(4-Nitrophenyl)butyric acid (无证书)
多效唑农药纯度标准物质
1.3.5-Tri-tert-butylbenzene (无证书)
丙酮中乙酰甲胺磷溶液标准样品
Soya oil fatty acids (无证书)
Copper(hydroxynonylphenyl)sulphonate
First Standard® 甲醇中整形素溶液, 1000μg/mL
Massachusetts EPH -Combined Aromatic/Aliphatic Fractionation Check Mixture (repk 200ug/ml in Hexane:
Vanadium Oxide (V2O5) 99.995%
7种邻苯二甲酸酯混标,100ug/ml溶于甲醇 标准品