Methyl isocyanate

chemical compound

Methyl isocyanate is an organic compound with the molecular formula CH3NCO. It has been used in the production of rubbers and adhesives.

Methyl isocyanate.svg
3D molecular model of methyl isocyanate

It is highly toxic and irritating. It was the main toxic material involved in the Bhopal disaster.

Physical propertiesEdit

Methyl isocyanate is a colourless, poisonous and flammable liquid. It is soluble in water.


Methyl isocyanate is extremely toxic by inhalation, ingestion and contact in quantities as low as 0.4 ppm.

Exposure symptoms include coughing, chest pain, asthma, shortness of breath and skin damage.