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Nitrates and nitrites

Nitrite

Also known as Nitrite Ion, Nitrite anion, Nitrite (NO2-)

CAS 14797-65-0Formula NO2-Molar mass 46.01 g/mol
19 suppliers listed Drug substance
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Nitrite chemical structure, NO2-, CAS 14797-65-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
14797-65-0
Formula
NO2-
Physical form
Crystals
HS code
283410
Category
Nitrates and nitrites
UN number
UN 2627
Illustrative photo, closed white HDPE bottles and amber jars on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Nitrite?

Plain description, key identifiers and synonyms

Nitrite is the nitrogen oxoanion formed by loss of a proton from nitrous acid. It has a role as a human metabolite. It is a nitrogen oxoanion, a member of reactive nitrogen species and a monovalent inorganic anion. It is a conjugate base of a nitrous acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
nitrite
CAS number
14797-65-0 CAS number cross-checked
Molecular formula
NO2-
UNII
J39976L608
MDL number
MFCD00144923
InChIKey
IOVCWXUNBOPUCH-UHFFFAOYSA-M
InChI
InChI=1S/HNO2/c2-1-3/h(H,2,3)/p-1
SMILES (canonical and isomeric)
N(=O)[O-]

Synonyms

  • Nitrite Ion
  • Nitrite anion
  • Nitrite (NO2-)
  • Nitrites
  • Nitrous acid, ion(1-)
  • Nitrite(1-)
  • Nitrite ion (NO2-)
  • Nitrogen dioxide ion(1-)
  • Nitrogen peroxide ion(1-)
  • Nitrite as N @ 1000 microg/mL in H2O
  • Nitrite Standard: NO2- @ 1000 microg/mL in H2O
  • Nitrite Standard: NO2- @ 10000 microg/mL in H2O
  • Nitrit
  • dioxonitrate(1-)
  • dioxonitrate(III)
  • dioxidonitrate(1-)
  • ONO-
  • Anion Standard - Nitrite
  • NO2(-)
  • Water Supply QC Check Sample: Nitrite
  • [NO2](-)
  • Ion Chromatography Anion Std Nitrite 1mg/mL (1000 ppm)

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

Physical form
Crystalsexp.

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
46.01 g/molcalc.
Exact mass
45.9935 Dacalc.
LogP (octanol/water)
0.25calc.
Topological polar surface area
52.49 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
0calc.
Heavy atoms
3calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
-1calc.
Stereocentres
0calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS classification
Hazard pictograms
UN number
UN 2627
Transport hazard class
5.1

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

Full safety data and first aid

Nitrite suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 19 suppliers
19 of 19 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

19 suppliers in 6 countries

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Nitrite 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

Roles

  • animal metabolite
  • eukaryotic metabolite
  • human metabolite
  • mammalian metabolite
  • metabolite

Pharmacology

Nitrite is a nitrogen oxoanion that is formed when nitrous acid is deprotonated. As nitrite is a metabolic end product for nitric oxide (NO), which is increased during inflammation, nitrite levels can be used to assess NO production and thus inflammation.

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU Cosmetics Regulation Annex II, prohibited in cosmetics
    Name: Inorganic nitrites, with exception of sodium nitrite, Ref no: 248, Annex ref: II/248
  • Active ingredient in FDA approved drug labels

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

HS 2834.10Indicative HS code

Nitrites

World exports in 2024
$64.9M
−6.3% vs 2023, imports $101M
2019 to 2024
Top exporters
  1. China33.8%
  2. India * partner reported30.0%
  3. United States11.3%
Top importers
  1. United States14.9%
  2. Netherlands10.2%
  3. Canada6.0%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Nitrite is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Nitrite, based on the data on this page

What is Nitrite?

Nitrite is the nitrogen oxoanion formed by loss of a proton from nitrous acid. It has a role as a human metabolite. It is a nitrogen oxoanion, a member of reactive nitrogen species and a monovalent inorganic anion. It is a conjugate base of a nitrous acid.

What is the CAS number of Nitrite?

The CAS registry number of Nitrite is 14797-65-0.

What is the molecular formula and weight of Nitrite?

The molecular formula of Nitrite is NO2- and its molar mass is 46.01 g/mol.

What is Nitrite used for?

Known uses and roles of Nitrite include animal metabolite, eukaryotic metabolite, human metabolite, mammalian metabolite and metabolite.

Is Nitrite hazardous?

No GHS hazard classification for Nitrite 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 Nitrite?

Nitrite is usually classified under HS code 283410 (Nitrites). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Nitrite?

CompoundList lists 19 suppliers of Nitrite in United States, Germany, China, Spain and 2 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Nitrite in India?

2 suppliers in India list Nitrite on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Nitrite?

Suppliers quote Nitrite 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 Nitrite

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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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