Acta crystallographica. Section E, Crystallographic communications [Acta Crystallogr E Crystallogr Commun] 2023 Feb 09; Vol. 79 (Pt 3), pp. 142-145. Date of Electronic Publication: 2023 Feb 09 (Print Publication: 2023).
The title compound, C 16 H 11 N 3 O 3 , belongs to the family of azo dyes. In the light of a single-crystal X-ray study, it is evident that of the tautomeric forms (azo-hydrazone), the hydrazone form is the predominant form in the solid state, namely, ...