In the title compound. C11H6N2O. the complete molecule is generated by the application of crystallographic twofold symmetry (the molecule is disordered about this axis). The prop-2-yn-1-yl residue is slightly twisted out of the plane of the benzene ring [C—O—C—C torsion angle = 173. https://www.roneverhart.com/Yamaha-BBNE2-Nathan-East-Signature-5-String-Electric-Bass-in-White-p21349/