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Structure of 38484-94-5
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2,5-Dichlorobenzenesulfonic acid dihydrate features two chlorine substituents at the 2 and 5 positions of the benzene ring, enhancing its electron-withdrawing character. The sulfonic acid group provides strong acidity and high water solubility, while the dihydrate form ensures improved stability during storage. This compound serves as a key intermediate in dye synthesis and functionalized aromatic derivatization under mild conditions.
2,5-Dichlorobenzenesulfonic acid dihydrate serves as a robust sulfonation reagent and versatile building block in synthetic organic chemistry. Its dual chlorine substituents enhance electrophilic substitution reactivity, while the sulfonic acid group provides strong acidity and water solubility. The dihydrate form improves bench stability and simplifies handling, enabling reliable use in heterocycle synthesis, dye intermediates, and pharmaceutical scaffold construction under standard reaction conditions.
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GHS Pictogram :
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GHS No : GHS05
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Signal Word : Danger
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UN#: 3261
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Class : 8
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Packing Group : Ⅲ
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Hazard Statements : H302-H314
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Precautionary Statements : P260-P264-P280-P301+P330+P331-P303+P361+P353-P304+P340-P305+P351+P338-P363-P405-P501
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Lot numbers can be found on the outside label of a product: