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17β-雌二醇-d3 标准品
2,3,3',4,6-Pentachlorobiphenyl (无证书)
100ug/ml Ammonium in water for Ion Chromatography(有证书)
First Standard® 氨苄青霉素
Desisopropylatrazine-d5 (ethyl-d5)
21-O-Acetyl 6β-Hydroxy Cortisol
MUSSEL TISSUE 标准品
环氧七氯(Isomer B)
Acifluorfen Solution in Acetone
2-Chloro-4-ethylamino-6-propylamino-s-triazine 标准品