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Structure of 4252-78-2
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2,2',4'-Trichloroacetophenone serves as a critical impurity reference standard in the characterization and quality control of econazole. This chlorinated acetophenone derivative features three chlorine atoms positioned at the 2, 2', and 4' ring sites, imparting high electron deficiency and enhanced stability under standard analytical conditions. Its defined substitution pattern enables precise detection and quantification in pharmaceutical assays.
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GHS Pictogram :
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GHS No : GHS05,GHS07
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Signal Word : Danger
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UN#: 3335
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Class : 9
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Packing Group : Ⅲ
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Hazard Statements : H315-H317-H318-H335
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Precautionary Statements : P261-P264-P271-P272-P280-P302+P352-P304+P340-P362+P364-P405-P501
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Lot numbers can be found on the outside label of a product: