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Chlorfluazuron Solution in Acetonitrile
Mercuric iodide
头孢西丁溶液,100ppm
磺胺甲噻二唑-13C6
3-Indolebutyric acid Solution in T-butylmethyl Ether
牡蛎中无机元素和有机锡形态标准物质
Etridiazole
1-Methylindole-2-carboxylic acid (无证书)
Iron Chips (Fe) 99.94%
反式-九氯 标准品