On August 28, 2012, Song, Li-feng; Guo, Lin; Tang, Yong; Yin, Yong-bo published an article.SDS of cas: 97-09-6 The title of the article was Preparation of N-Alkyl substituted 3-amino-4-chloro-benzenesulfonamides. And the article contained the following:
N-Alkyl substituted 3-amino-4-chloro-benzenesulfonamides were important intermediates for preparing acid dyes and disperse dyes in peculiar field. The synthesis routes and their advantages and disadvantages of 4-chloro-3-aminobenzenesulfonamide and its N-alkyl substituted compounds were evaluated. Chlorosulfonic acid was replaced by thionyl chloride in the preparation of sulfonic acid chloride and industrial waste acid was reduced largely. Sodium sulfide reduction or iron powder reduction were instead by hydrogenation reduction, the yield was improved with energy saving and environmental protection. The experimental process involved the reaction of 3-Nitro-4-chlorobenzenesulfonamide(cas: 97-09-6).SDS of cas: 97-09-6
The Article related to preparation amino chloro benzenesulfonamide dye, Dyes, Organic Pigments, Fluorescent Brighteners, and Photographic Sensitizers: Dye Intermediates and other aspects.SDS of cas: 97-09-6
Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics