HazMat Tool — substance information

Methyl nitrite

HMT May 2026

UN / ID: n/a
Hazard class: Forbidden
Packing group: —
ERG guide: —
Special provisions: —
Source: 49 CFR §172 (2026/05)

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Methyl nitrite

Methyl nitrite is an organic compound with the chemical formula CH3ONO. It is a gas, and is the simplest alkyl nitrite. Wikipedia

Hazardous Materials Table

Source: 49 CFR §172 (2026/05)

(3) Hazard Class

Forbidden

(4) Identification number

n/a

(5) Packing Group

n/a

(6) Labels

n/a

(7) Special Provisions (§172.102)

(8) Packing Authorizations (§173.***)

(8A) Exceptions	n/a	see 49 CFR §173. n/a
(8B) Non-bulk	n/a	see 49 CFR §173. n/a
(8C) Bulk	n/a	see 49 CFR §173. n/a

(9) Quantity Limits

(9A) Passenger aircraft/rail	n/a
(9B) Cargo aircraft only	n/a

(10) Vessel stowage

(10A) Location	n/a see
(10B) Other	n/a

Segregation chart for load, transport, and storage

This chart shows whether loading, transport, or storage with other hazard classes is permitted, prohibited, or restricted. Based on 49 CFR §177.848.

This Hazmat is classified as "Forbidden". This means the material may not be offered for transportation or transported in the applicable mode of transport.

Similar substances

UN / ID	Proper shipping name	Hazard class
UN 3219	Nitrites, inorganic, aqueous solution, n.o.s	5.1
UN 1487	Potassium nitrate and sodium nitrite mixtures	5.1
UN 2627	Nitrites, inorganic, n.o.s.	5.1
UN 2351	Butyl nitrites	3
UN 1194	Ethyl nitrite solutions	3
UN 1512	Zinc ammonium nitrite	5.1