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Chlorethoxyfos
三苯基氯化锡
多效唑农药纯度标准物质
Xanthone
PIG LIVER (vitamins) 标准品
Titanium - Ti metal, 99.99%, 20% HCl(有证书)
2.3.5-Triiodobenzoic acid Solution 100ug/ml in MTBE
精-异丙甲草胺 Bepure-GBW(E)083076
2-Azido-4,6-O-benzylidene-N-(tert-butoxycarbonyl)-1,2,5-trideoxy-1,5-imino-D-glucitol
土壤中二噁英与呋喃类质控样