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Structure of 26158-00-9
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Benzenesulfonic acid hydrate serves as a robust, bench-stable catalyst for electrophilic aromatic substitution and sulfonation reactions. Its strong Brønsted acidity enables efficient activation of carbonyl and epoxide substrates, while its solubility in polar organic media facilitates clean reaction profiles and straightforward workup. Widely employed in the synthesis of dyes, pharmaceutical intermediates, and ion-exchange resins, it functions reliably across diverse synthetic workflows requiring controlled protonation or catalytic activation.
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GHS No : GHS05,GHS07
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Signal Word : Danger
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UN#: 2585
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Class : 8
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Packing Group : Ⅲ
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Hazard Statements : H302+H312+H332-H314
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Precautionary Statements : P260-P261-P264-P270-P271-P280-P301+P330+P331-P302+P352-P304+P340-P330-P362+P364-P363-P405-P501
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Lot numbers can be found on the outside label of a product: