thiocyanates

https://doi.org/10.1351/goldbook.T06353
Salts and esters of thiocyanic acid $\ce{HSC#N}$, e.g. $\ce{CH3SC#N}$ methyl thiocyanate.
Source:
PAC, 1995, 67, 1307. (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1372 [Terms] [Paper]