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莠灭净 标准品
4-Stilbazole (无证书)
trans-1,2-Diaminocyclohexane-N,N,N?N?tetraacetic acid mono,certified 标准品
荧光增白剂220
ANISALDEHYDE, 3-(RG) 标准品
4.4-Diphenylsemicarbazide (无证书)
敌敌畏溶液,1000ppm
(5α,16β)-N-Acetyl-16-acetyloxy-2'H-androst-2-eno[3,2-c]pyrazol-17-one
WASTE MINERAL OIL (high PCB level) 标准品
Phenmedipham Solution in Acetonitrile