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Benz[a]anthracene-7,12-dione(Benzanthraquinone) 标准品
(+)-儿茶素 标准品
杀螟丹
PUNYW26504394 Temsirolimus Impurity 1 (Temsirolimus 7-O-Desmethyl Impurity)
2-(Acetylamino)-2-deoxy-β-D-galactopyranosylamine 3,4,6-Triacetate
PCBNO.156
2-Mercaptopropionic acid (无证书)
5-Phenylvaleric acid (无证书)
Minnesota Dept. Ag. (MDA) List 2 Herbicide acids 标准品
乙螨唑 BePure-22741XA