4,4'-Bis(chlorosulfonyl)diphenyl ether
https://www.amasa-project.eu/shop/fm-in-da003kec-44-bis-chlorosulfonyl-diphenyl-ether-79452
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4,4'-Bis(chlorosulfonyl)diphenyl ether for polymer and resin synthesis, chemical labs, and research applications. Buy online.
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