N2O4
92.011 g/mol
Industrial ChemicalDanger
Dinitrogen tetroxide
CAS10544-72-6EC234-126-4
Category
Industrial Chemical
Compound Class
Other
Primary Use
Rocket propellant oxidizing agent
Dinitrogen tetroxide is a chemical compound that commonly exists in equilibrium with nitrogen dioxide. It is primarily significant as a reagent in chemical synthesis and as an oxidizing agent in rocket propellants.
Rocket propellant oxidizing agentReagent in chemical synthesis
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.
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Safety Reference
Danger
H270May cause or intensify fire; oxidizer
H314Causes severe skin burns and eye damage
H330Fatal if inhaled
H280Contains gas under pressure; may explode if heated
H318Causes serious eye damage
H335May cause respiratory irritation
H336May cause drowsiness or dizziness
H341Suspected of causing genetic defects
H371May cause damage to organs
H372Causes damage to organs through prolonged or repeated exposure
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for Dinitrogen tetroxide (CAS 10544-72-6) is 2811.29.
HS code (international, 6-digit)
2811.29
EU CN code (8-digit)
2811 29 30
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
InChIKey
WFPZPJSADLPSON-UHFFFAOYSA-N
SMILES
[N+](=O)([N+](=O)[O-])[O-]
Synonyms (14)
- Di-nitrogen dioxide
- Dinitrogen tetraoxide
- Dinitrogen tetroxide
- Distickstofftetroxid
- NITROGEN TETROXIDE
- Nitrogen dioxide, di-
- Nitrogen oxide (N2O4)
- Nitrogen oxide NO2
- Nitrogen tetraoxide
- OXIDES OF NITROGEN
- Peroxyde d'azote
- bis(dioxidonitrogen)(N--N)
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