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4-O-Acetyl-2,5-anhydro-1,3-O-isopropylidene-6-trityl-D-glucitol
First Standard® 丙酮中39种农药混标溶液(GCMS&LCMS),100μg/mL
1H,1H,2H,2H-Perfluoro-9-methyldecan-1-ol
11种全氟混标 Bepure-30504XM-a
辛夷脂素 对照品
磺胺(间)-6-甲氧嘧啶
Glutaric anhydride (无证书)
Special PCB Mixture 100ug/ml in Isooctane
Dibromoacetic acid-methyl ester 标准品
METHYL-3-PHENYLCOUMARIN,4-(RG) 标准品