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Dinitrogen dioxide

Also known as Nitric oxide dimer, Nitrogen oxide (NO), dimer, dioxohydrazine

CAS 16824-89-8Formula N2O2Molar mass 60.01 g/mol
Dinitrogen dioxide chemical structure, N2O2, CAS 16824-89-8
2D chemical structure

Key facts

What buyers check first

CAS number
16824-89-8
Formula
N2O2
Molar mass
60.01 g/mol
HS code
285390
Category
Silicates, borates and other salts

What is Dinitrogen dioxide?

Plain description, key identifiers and synonyms

Dioxohydrazine is a nitrogen oxide.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
N-oxonitrous amide
CAS number
16824-89-8
Molecular formula
N2O2
UNII
P6TX5AE4Q8
InChIKey
AZLYZRGJCVQKKK-UHFFFAOYSA-N
InChI
InChI=1S/N2O2/c3-1-2-4
SMILES (canonical and isomeric)
N(=O)N=O

Synonyms

  • Nitric oxide dimer
  • Nitrogen oxide (NO), dimer
  • dioxohydrazine
  • N-oxonitrous amide
  • ONNO
  • bis(oxidonitrogen)(N--N)

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
60.01 g/molcalc.
Exact mass
59.996 Dacalc.
LogP (octanol/water)
0.43calc.
Topological polar surface area
58.86 ร…ยฒcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
1calc.
Heavy atoms
4calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Dinitrogen dioxide suppliers

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Dinitrogen dioxide price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Dinitrogen dioxide is traded under.

HS 2853.90Indicative HS code

Phosphides, whether or not chemically defined, excluding ferrophosphorus, other, other

World exports in 2024
$2.45B
โˆ’33.6% vs 2023, imports $816M
2019 to 2024
Top exporters
  1. China68.4%
  2. Israel8.1%
  3. United States4.9%
Top importers
  1. United States19.3%
  2. Japan17.9%
  3. China13.4%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Dinitrogen dioxide is indicative (it is known at chapter level only). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Dinitrogen dioxide, based on the data on this page

What is Dinitrogen dioxide?

Dioxohydrazine is a nitrogen oxide.

What is the CAS number of Dinitrogen dioxide?

The CAS registry number of Dinitrogen dioxide is 16824-89-8.

What is the molecular formula and weight of Dinitrogen dioxide?

The molecular formula of Dinitrogen dioxide is N2O2 and its molar mass is 60.01 g/mol.

Is Dinitrogen dioxide hazardous?

No GHS hazard classification for Dinitrogen dioxide is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Dinitrogen dioxide?

Dinitrogen dioxide is usually classified under HS code 285390 (Phosphides, whether or not chemically defined, excluding ferrophosphorus, otherโ€ฆ). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Dinitrogen dioxide?

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What is the price of Dinitrogen dioxide?

Suppliers quote Dinitrogen dioxide on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Dinitrogen dioxide

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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