Salts and esters of cyanic acid,
HOC≡N, e.g.
KOCN potassium cyanate,
PhOCN phenyl cyanate.
See: esters, isocyanates
Source:
PAC, 1995, 67, 1307. 'Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)' on page 1329 (https://doi.org/10.1351/pac199567081307)