HazMat Tool — substance information

Nitromethane

HMT May 2026
UN / ID
UN 1261
Hazard class
3
Packing group
II
ERG guide
ERG 129
Special provisions
Source
49 CFR §172 (2026/05)

Spot an error in this entry?

Nitromethane


Nitromethane, sometimes shortened to simply "nitro", is an organic compound with the chemical formula CH3NO2. It is the simplest organic nitro compound. It is a polar liquid commonly used as a solvent in a variety of industrial applications such as in extractions, as a reaction medium, and as a cleaning solvent. As an intermediate in organic synthesis, it is used widely in the manufacture of pesticides, explosives, fibers, and coatings. Wikipedia

Substance Data

Source: PubChem

CAS-Number

75-52-5

Flash Point

n/a

Boiling Point

n/a

Emergency Response Guide No. 129

Hazardous Materials Table

Source: 49 CFR §172 (2026/05)

(3) Hazard Class

3
Flammable liquids

(4) Identification number Help

UN 1261

(5) Packing Group Help

II

(6) Labels Help

Flammable liquids (3) Cargo Aircraft Only (Cargo Aircraft Only)

(7) Special Provisions (§172.102) Help

(8) Packing Authorizations (§173.***) Help

(8A) Exceptions150see 49 CFR §173.150
(8B) Non-bulk202see 49 CFR §173.202
(8C) BulkNone

(9) Quantity Limits Help

(9A) Passenger aircraft/railForbidden
(9B) Cargo aircraft only60 L

(10) Vessel stowage Help

(10A) Location
(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.

Prohibited Must not be loaded, transported, or stored together in the same vehicle or facility.
Permitted May be loaded, transported, or stored together.
Restricted May be loaded, transported, or stored together only with restrictions.

Similar substances

UN / IDProper shipping nameHazard class
Trimethylol nitromethane trinitrateForbidden
DinitromethaneForbidden
UN 1510Tetranitromethane6.1
TrinitromethaneForbidden