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乙嘧硫磷农药溶液标准物质
10种禁用二元醇醚及其酯类化合物(GB/T 35894-2018)
(办证)二甲苯麝香(D15)
补骨脂二氢黄酮甲醚 对照品
Nitroaromatics & Nitramine Intermediate Standards Mixture #1 - 8330 1000ug/ml in Methanol:Acetonitri
Apafant
2-Butyl-3,5-dimethylpyrazine and 2-butyl-3,5-dimethylpyrazine, Isomer mixture
Sulfate from Na2SO4 @ 1000ug/ml in water
倍硫磷氧化物
Tri-n-octylphosphine oxide (无证书)