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Aminocarb 标准品
Diphenanthro[9,10-b;9',10'-d]thiophene
N,N-二乙基羟胺 (无证书)
ASTM D3606 Benzene in Gasoline Std. #3 w/ IS in Isooctane
Methacrylonitrile Solution 100ug/ml in Methanol
Chlormequat chloride(有证书)
Trichloroethene 标准品
甲苯氟磺胺
螺虫乙酯-enol 标准品
Chloridazon D5 (phenyl D5) 100 μg/mL in Acetonitrile