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GPC标样-聚甲基丙烯酸甲酯(Mw 1200000)(中/高Mw,窄MWD) 标准品
17α(H),21?(H)-(22RS)-Homohopane
分散蓝3
Hexadecyltrimethyl ammonium chloride (无证书)
LEPTOPHOS, 1GM, 标准品
Octylphenoxyethoxyethyl dimethyl-benzyl ammonium chloride (无证书)
m-Terphenyl-d14
虫死净; 抑食肼溶液, 100ppm
9-Methylphenanthrene
A0303604 L-胱氨酸