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Contaminants in commercial dapsone

✍ Scribed by Andrew P. Cheung; Peter Lim

Publisher
John Wiley and Sons
Year
1977
Tongue
English
Weight
380 KB
Volume
66
Category
Article
ISSN
0022-3549

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✦ Synopsis

Three contaminants commonly found in commercial dapsone were identified as 2,4'-sulfonylbis(benzeneamine), 4-(phenylsulfonyl)benzeneamine, and 4-(4'-chlorophenylsulfonyl)benzeneamine. The identities were based on the spectral analysis and unambiguous synthesis of each compound. Solvent-free, pure dapsone was prepared by recrystallization from chloroform.

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## Abstract For Abstract see ChemInform Abstract in Full Text.

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