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alpha-2,4-Trichloroacetophenon|2,4-Dichlorphenacylchloride|2,2′,4′-Trichloroacetophenone|omega,2,4-Trichloroacetophenone|2,4-Dichlorophenacyl chloride
脱氢乙酸钠盐 标准品
Short-chained sterane Kit; includes 0674,0676,0848,0675,0641, all as 100μg/mL
甲氟磷 BePure-22113XA
1-[1-(4-氯苯基)环丁基]-3-甲基丁胺盐酸盐溶液, 100ppm
氟啶虫酰胺游离酸
2,3,4,4’,5-五氯联苯溶液,100ppm
Al-2.0 % Sc (0.1 mm foil) 标准品
阿达帕林 BePure-20047
FLY ASH FROM PULVERISED COAL (trace elements) 标准品
敌草胺 标准品