CAS Registry Number

CAS 531-91-9 — N,N-Diphenylbenzidine

N,N-Diphenylbenzidine is an organic compound primarily used as a dye intermediate, particularly in the production of azo dyes for textiles, pigments, and colorants. It is also employed in the manufacture of certain polymers and as a chemical reagent in analytical applications. This solid compound has a CAS number of 531-91-9, a molecular formula of 4-(C6H5NH)C6H4C6H4-4-(NHC6H5), and a molecular weight of 336.43 g/mol. It is stable at ambient storage conditions but requires careful handling, as indicated by its warning signal word. Molekula supplies N,N-Diphenylbenzidine from research to bulk quantities with full documentation and ISO 9001:2015 traceability.