Safety Reference
Danger
H220Extremely flammable gas
H331
Restricted or banned substances
Substances on this list are banned or restricted under the named regulation. This page is a compliance reference — verify your obligations under applicable law.
CAS 630-08-0
Carbon monoxide is a colorless, odorless gas produced by the incomplete combustion of carbon-containing materials. It is widely used as a fuel gas and a chemical intermediate in industrial processes.
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
The international HS code for Carbon monoxide (CAS 630-08-0) is 2811.29.
2811.29
2811 29 90
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
carbon monoxide
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[C-]#[O+]