1-[(E)-2-(2-Hydroxy-5-methylphenyl)diazen-2-ium-1-yl]naphthalen-2-olate
The title zwitterion, C17H14N2O2, crystallizes with two independent molecules in the asymmetric unit, both of which are approximately planar, the dihedral angles between the benzene ring and the naphthalene Outdoor Games ring system being 4.39 (12)° in one molecule and 5.83 (12)° in the other, and show an E conformation with r