| M Formula: | ClHCNOH |
| Properties: | |
| Needles; odor resembles that of hydrocyanic acid. Stable at 0C, unstable at normal temperature. Small quantities volatilize, large quantities decompose. Aqueous solutions slowly decompose. Soluble in water, alcohol, ether, benzene; slightly soluble in carbon disulfide. | |
| Derivation: | |
| Interaction of hydrochloric acid and sodium cyanate. | |
| Hazard: | |
| Toxic by inhalation; strong irritant to tissue. | |
| Use: | |
| Organic synthesis, tear gas, and vesicant. | |