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Chemical substance

Ethyl nitrite

Also known as Nitrosyl ethoxide, Hyponitrous ether, Nitrous acid, ethyl ester

CAS 109-95-5Formula C2H5NO2Molar mass 75.07 g/molEC 203-722-6
GHS signal word: Danger. Pictograms: Flammable, Gas under pressure, Harmful or irritant 1 supplier listed Drug substance
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Ethyl nitrite chemical structure, C2H5NO2, CAS 109-95-5
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless or yellowish, clear liquid
Melting point
-50 °C
Boiling point
17 °C
Density
0.90 @ 15 °C/15 °C
Flash point
-35 °C
HS code
294200
UN number
UN 1194
Illustrative photo, 25 litre white jerry cans of liquid in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Ethyl nitrite?

Plain description, key identifiers and synonyms

Ethyl nitrite is a nitroso compound.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
ethyl nitrite
CAS number
109-95-5 CAS number cross-checked
EC number
203-722-6
Molecular formula
C2H5NO2
UNII
8C7CJ279RV
InChIKey
QQZWEECEMNQSTG-UHFFFAOYSA-N
InChI
InChI=1S/C2H5NO2/c1-2-5-3-4/h2H2,1H3
SMILES (canonical and isomeric)
CCON=O

Synonyms

  • Nitrosyl ethoxide
  • Hyponitrous ether
  • Nitrous acid, ethyl ester
  • Nitrous ethyl ether
  • Ethylester kyseliny dusite
  • Nitrous ether
  • Ethyl-nitrite-
  • nitrous acid ethyl ester
  • Ethylnitrite
  • Ethyl Nitrite(10-20% solution in EtOH)

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

Appearance
Colorless or yellowish, clear liquidexp.
Odour
SWEET, RUM-LIKE ODORexp.
Taste
FRUITY TASTEexp.
Melting point
-50 °Cexp.
Boiling point
17 °Cexp.
Density
0.90 @ 15 °C/15 °Cexp.
Flash point
-35 °Cexp.
Autoignition temperature
90 °Cexp.
Solubility
Slightly soluble in water, decomposes in water, miscible with alcohol, etherexp.

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
75.07 g/molcalc.
Exact mass
75.032 Dacalc.
LogP (octanol/water)
0.7calc.
Topological polar surface area
38.66 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
2calc.
Heavy atoms
5calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS02: Flammable
Flammable
GHS04: Gas under pressure
Gas under pressure
GHS07: Harmful or irritant
Harmful or irritant
434NFPA 704 rating

Hazard statements

  • H220Extremely flammable gas.
  • H302Harmful if swallowed.
  • H312Harmful in contact with skin.
  • H332Harmful if inhaled.
Precautionary statements (19)
  • P203Obtain, read and follow all safety instructions before use.
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P222Do not allow contact with air.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P317Get medical help.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P377Leaking gas fire: do not extinguish, unless leak can be stopped safely.
  • P381In case of leakage, eliminate all ignition sources.
  • P403Store in a well-ventilated place.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 1194

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

Ethyl nitrite suppliers

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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

1 supplier in 1 country

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Ethyl nitrite price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

For preparing spirit nitrous ether.

Chem intermediate, flavor in foods & beverages.

Organic reactions, synthetic flavoring.

Flavors useful in rum, brandy, fruit flavors.

Functional uses

  • Flavouring and nutrient

How it is made

Reaction of nitrous acid & ethanol

Made by action of sodium nitrite on mixture of alcohol and sulfuric acid in the cold. In lab ethyl nitrite gas is ... Generated by placing 20 L of 90% ethanol in suitable vessel, diluting with 200 L of water ... While stirring, adding to dilute alcohol 18.3 kg of nitrosyl chloride @ the rate of 2.25 kg/hr ... Chase, US patent 2,615,896 (1952).

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 007-006-00-2

Health and food

  • Active ingredient in FDA approved drug labels

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

HS 2942.00Indicative HS code

Organic compounds not elsewhere classified in chapter 29

World exports in 2024
$589M
−43.5% vs 2023, imports $614M
2019 to 2024
Top exporters
  1. India * partner reported20.7%
  2. United States18.6%
  3. Italy10.4%
Top importers
  1. United States15.1%
  2. Italy6.7%
  3. Japan5.3%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Ethyl nitrite, based on the data on this page

What is Ethyl nitrite?

Ethyl nitrite is a nitroso compound.

What is the CAS number of Ethyl nitrite?

The CAS registry number of Ethyl nitrite is 109-95-5.

What is the molecular formula and weight of Ethyl nitrite?

The molecular formula of Ethyl nitrite is C2H5NO2 and its molar mass is 75.07 g/mol.

What is Ethyl nitrite used for?

For preparing spirit nitrous ether. Chem intermediate, flavor in foods & beverages. Organic reactions, synthetic flavoring. Flavors useful in rum, brandy, fruit flavors.

Is Ethyl nitrite hazardous?

Ethyl nitrite carries the GHS signal word "Danger". Main hazards: extremely flammable gas, harmful if swallowed, harmful in contact with skin. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Ethyl nitrite?

Ethyl nitrite is usually classified under HS code 294200 (XIII. OTHER ORGANIC COMPOUNDS, other organic compounds). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Ethyl nitrite?

CompoundList lists 1 supplier of Ethyl nitrite in China. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Ethyl nitrite?

Suppliers quote Ethyl 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 Ethyl 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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