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Promecarb Solution 1000ug/ml in Methanol
2,3,3′,4,5,5′-Hexachlorobiphenyl-2′,4′,6′-d3 标准品
SEM同位素(13C,15N2) BePure-25522
3-Methyl octane
大黄素甲醚 对照品
(3α(H)+3b?(H)),17?(H),21?(H)-3-Hydroxyhopane
2-Chloro-5-methylphenol,certified 标准品
dl Epinephrine-d3
Methane-d4 (gas) 标准品
METHOXYFLAVANONE, 6-(P) 标准品