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1-Chlorooctadecane Solution 2000ug/ml in Methylene chloride
Sulfacetamide Sodium
2.4-Diamino-6-hydroxypyrimidine monohydrate (无证书)
(S)-(-)-3-Acetylthio-2-methylpropionic Acid
苹果汁中的甲氰菊酯质控样 BQC1061122841
邻苯二甲酸二异庚酯 溶液, 1000ppm
磺胺喹噁啉(磺胺喹恶啉) 标准品
δ-BHC农药纯度分析标准物质
乙呋草黄
n-Octane Solution 1000ug/ml in Methanol