Used in the form of its salts as a dye and as an intermediate in manufacture of Acid
Yellow, diazo dyes, and indulines.
https://reptox.cnesst.gouv.qc.ca/pages/fiche-complete.aspx?no_produit=108506&nom=C%2EI%2E+solvent+yellow+1 Canada French p-aminoazobenzene toxicological data sheet