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Homopiperazine-N,N’-bis-[2-(ethanesulfonic acid)]
CNET formaldehyde solution, 10μg/ml (as formaldehyde) in acetonitorile
虱螨脲(10ug/ml,10ml) 标准品
Sulprofos Solution 100ug/ml in Acetonitrile
秀谷隆 标准品
络石苷 对照品
Composite Unleaded Gasoline Solution 50,000ug/ml in Methylene chloride
四氯硝基苯
HYDROCORTISONE(RG) 标准品
甘磷酸胆碱(GPC)(P) 标准品