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47059, 2,3,3'-Trichlorobiphenyl (IUPAC N o. 20) (purity) 标准品
Aromatic VOC Mix 1,2000ug/ml 标准品
定制混标33 标准品
PUNYW25605552 Asoprisnil-d4
ASTM Methods D4815 & D5599 OXYCAL in Gasoline Calibration Mix #8 w/ IS in Oxygenate Free Gasoline
α,α-2,6-四氯甲苯
Imidacloprid-olefin 标准品
(易制爆)Barium Nitrate (Ba(NO3)2) 99.999%(有证书)
GBW(E)083126 氯虫苯甲酰胺 CAS号85721-33-1
啶虫脒 标准品