Tags: Chemical Compound, Chemical Substance.
Isocyanic acid is an organic compound with the formula HNCO discovered in 1830 by Liebig and Wöhler. This colourless substance is volatile and poisonous with a boiling point of 23.5 °C. Isocyanic acid is the simplest stable chemical compound that contains carbon hydrogen nitrogen and oxygen the four most commonly found elements in organic chemistry and biology.