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Synthetic aroma chemicals

Pentyl nitrite

Also known as n-Amyl nitrite, n-Pentyl nitrite, Nitrous acid, pentyl ester

CAS 463-04-7Formula C5H11NO2Molar mass 117.15 g/molEC 207-332-7
GHS signal word: Danger. Pictograms: Flammable, Harmful or irritant 10 suppliers listed
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Pentyl nitrite chemical structure, C5H11NO2, CAS 463-04-7
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Yellowish liquid
Boiling point
104.5 °C
Density
0.8817 g/cm³ at 20 °C
Solubility
Slightly soluble in water
HS code
294200
Category
Synthetic aroma chemicals
Illustrative photo, an IBC tote of pale yellow liquid in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Pentyl nitrite?

Plain description, key identifiers and synonyms

N-pentyl nitrite is a nitrite ester having n-pentyl as the alkyl group. It has a role as a vasodilator agent.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
pentyl nitrite
CAS number
463-04-7 CAS number cross-checked
EC number
207-332-7
Molecular formula
C5H11NO2
UNII
H2HUX79FYK
MDL number
MFCD00036132
InChIKey
CSDTZUBPSYWZDX-UHFFFAOYSA-N
InChI
InChI=1S/C5H11NO2/c1-2-3-4-5-8-6-7/h2-5H2,1H3
SMILES (canonical and isomeric)
CCCCCON=O

Synonyms

  • n-Amyl nitrite
  • n-Pentyl nitrite
  • Nitrous acid, pentyl ester
  • Pentyl alcohol, nitrite
  • 4-01-00-01644 (Beilstein Handbook Reference)
  • Pentylnitrite
  • nitrous acid pentyl ester
  • 1-Pentyl Nitrite, Nitramyl, n-Amyl Nitrite, n-Pentyl Nitrite
  • n-pentylnitrite
  • Nitrite de pentyle
  • Pentyl nitrite, AldrichCPR

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
Yellowish liquidexp.
Odour
Peculiar ethereal, fruity odorexp.
Taste
Pungent, aromatic tasteexp.
Boiling point
104.5 °Cexp.
Density
0.8817 g/cm³ at 20 °Cexp.
Autoignition temperature
208.9 °Cexp.
Solubility
Slightly soluble in waterexp.
Vapour pressure
3.97 mm Hg at 25 °Cexp.

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
117.15 g/molcalc.
Exact mass
117.079 Dacalc.
LogP (octanol/water)
1.87calc.
Topological polar surface area
38.66 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
5calc.
Heavy atoms
8calc.
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
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H225Highly flammable liquid and vapour.
  • H302Harmful if swallowed.
  • H332Harmful if inhaled.
Precautionary statements (19)
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P233Keep container tightly closed.
  • P240Ground and bond container and receiving equipment.
  • P241Use explosion-proof electrical, ventilating and lighting equipment.
  • P242Use non-sparking tools.
  • P243Take action to prevent static discharges.
  • 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.
  • P303 + P361 + P353If on skin (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P317Get medical help.
  • P330Rinse mouth.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P403 + P235Store in a well-ventilated place. Keep cool.
  • P501Dispose of contents and container in accordance with local regulations.

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

Pentyl nitrite suppliers

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

All 10 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

10 suppliers in 3 countries

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Pentyl 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

Perfumes, diazonium compounds.

Roles

  • cardiovascular drug
  • pharmaceutical
  • vasodilator agent

How it is made

Interaction of amyl alcohol with nitrous acid.

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 007-020-00-9[1]

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 Pentyl 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 Pentyl 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 Pentyl nitrite, based on the data on this page

What is Pentyl nitrite?

N-pentyl nitrite is a nitrite ester having n-pentyl as the alkyl group. It has a role as a vasodilator agent.

What is the CAS number of Pentyl nitrite?

The CAS registry number of Pentyl nitrite is 463-04-7.

What is the molecular formula and weight of Pentyl nitrite?

The molecular formula of Pentyl nitrite is C5H11NO2 and its molar mass is 117.15 g/mol.

What is Pentyl nitrite used for?

Perfumes, diazonium compounds.

Is Pentyl nitrite hazardous?

Pentyl nitrite carries the GHS signal word "Danger". Main hazards: highly flammable liquid and vapour, harmful if swallowed, harmful if inhaled. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Pentyl nitrite?

Pentyl 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 Pentyl nitrite?

CompoundList lists 10 suppliers of Pentyl nitrite in China, India and Switzerland. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Pentyl nitrite in India?

4 suppliers in India list Pentyl 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 Pentyl nitrite?

Suppliers quote Pentyl 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 Pentyl 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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