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2,4'-Dichlorobiphenyl
1,4-Dichloronaphthalene 标准品
9-羟利培酮溶液, 1000ppm
2,4,5-三氯甲苯 标准品
ALLYL ISOTHIOCYANATE(SG) 标准品
Potassium Sodium Tartrate
1,1,1,3,8,10,10,10-Octachlorodecane
75814, Bovine liver (residue of 17 -trenbolone) 标准品
Benzyl salicylate (无证书)
Demeton S