-
4-氯乙酰乙酸乙酯,638-07-3,>95.0%(GC)
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4-氯乙酰乙酸乙酯
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外环氧七氯标准溶液,1024-57-3,analytical standard,100ug/ml in Petroleum ether
-
外环氧七氯标准溶液,1024-57-3,analytical standard,100ug/ml in Petroleum ether
-
甲草胺标准溶液,15972-60-8,analytical standard, 100 mg/L in methanol
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甲草胺标准溶液,15972-60-8,analytical standard, 100 ug/ml in ethyl acetate,u=3%
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苄嘧磺隆标准溶液,83055-99-6,analytical standard,100μg/ml,u=3% in acetone
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空气中苯系物中,二硫化碳中的苯和甲苯质控样
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1,1,2,2-四氯乙烷标准溶液,79-34-5,analytical standard,0.978mg/ml in methanol
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氯甲烷标准溶液,74-87-3,100mg/L,溶于吹扫-捕集甲醇溶液中
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