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4,5-Dicaffeoylquinic acid 标准品
Arsenic - As metal 99.999%,2% HCl(有证书)
GPC标样-聚苯乙烯(Mw 1460000)(高Mw,窄MWD) 标准品
d5-5?-Androstane-3a,17?-diol, 标准品
Chlorflurecol-methyl ester
GBW(E)061104 酸性橙II
Sulfur in Residual Fuel Oil (2 %)
Fenuron Solution(有证书)
Allyl 2-Acetamido-3,4,6-tri-O-acetyl-2-deoxy-β-D-glucopyranoside
Tribromoacetic acid