isocyanates

https://doi.org/10.1351/goldbook.I03269
The isocyanic acid tautomer, HN=C=O, of cyanic acid, HOC≡N and its @H02891@ derivatives RN=C=O.
Source:
PAC, 1995, 67, 1307. (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1344 [Terms] [Paper]