Characterization of Sulfonic Acid Isomers of Dehydrothio-p-toluidine
Abstract:Dehydrothio-p-toluidine sulfonic acid (DTSA) is commonly used as a dye intermediate. It is typically produced by sulfonation of the product obtained from fusion of p-toluidine and sulfur. In addition to the major component, 2-(4-aminophenyl)-6-methyl-7-benzothiazolyl-sulfonic acid (APM-7-BSA), a commercial sample of DTSA, characterized for the National Toxicology Program, was found to contain sulfonic acid isomers of the major component which have not been described in the chemical literature.
Document Type: Short Communication
Affiliations: Midwest Research Institute, 425 Volker Boulevard, Kansas City, Missouri 64110
Publication date: May 1, 1988
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