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Acetylpyrazine

Also known as 2-Acetylpyrazine, Ethanone, 1-pyrazinyl-, 1-(pyrazin-2-yl)ethan-1-one

CAS 22047-25-2Formula C6H6N2OMolar mass 122.13 g/molEC 244-753-5
GHS signal word: Warning. Pictograms: Harmful or irritant 50 suppliers listed
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Acetylpyrazine chemical structure, C6H6N2O, CAS 22047-25-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
22047-25-2
Formula
C6H6N2O
Molar mass
122.13 g/mol
EC number
244-753-5
HS code
293399
Category
Flavor ingredients

What is Acetylpyrazine?

Plain description, key identifiers and synonyms

2-acetylpyrazine is a pyrazine that is substituted by an acetyl group at position 2. It has been identified as one of the volatile flavor constituents in popcorn, bread crust, vinegar, and potato snacks. It has a role as a flavouring agent. It is a member of pyrazines and an aromatic ketone.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1-pyrazin-2-ylethanone
CAS number
22047-25-2 CAS number cross-checked
EC number
244-753-5
Molecular formula
C6H6N2O
UNII
GR391IBU5C
MDL number
MFCD00006134
INCI name
METHYL PYRAZINYL KETONE
InChIKey
DBZAKQWXICEWNW-UHFFFAOYSA-N
InChI
InChI=1S/C6H6N2O/c1-5(9)6-4-7-2-3-8-6/h2-4H,1H3
SMILES (canonical and isomeric)
CC(=O)C1=NC=CN=C1

Synonyms

  • 2-Acetylpyrazine
  • Ethanone, 1-pyrazinyl-
  • 1-(pyrazin-2-yl)ethan-1-one
  • 1-pyrazin-2-ylethanone
  • 1-Pyrazinylethanone
  • Pyrazin-1-ylethan-1-one
  • Ethanone, l-pyrazinyl-
  • Methyl pyrazinyl ketone
  • 1-(pyrazin-2-yl)ethanone
  • Ketone, methyl pyrazinyl
  • Ethanone, 1-(2-pyrazinyl)-
  • 1-(2-Pyrazinyl)ethanone
  • Pyrazine der.
  • 1-Pyrazin-2-ylethan-1-one
  • Acetylpyrazine, 97%
  • 1-(2-pyrazinyl)-ethanone
  • 2-acetyl pyrazine
  • 1-pyrazin-2-yl-ethanone
  • acetyl pyrazine
  • Methyl 2-pyrazinyl ketone
  • 1-pyrazinyl-ethanone
  • L-Pyrazinyl-Ethanone
  • 2-acetyl-1,4-diazine
  • 1-(pyrazin-2-yl)-ethanone
  • 1-(2-Pyrazinyl)ethanone #
Show all 28 synonyms
  • Ethanone 1-(2-pyrazinyl)-
  • 1-(2-pyrazinyl)-1-ethanone
  • 2-Acetylpyrazine, >=99%, FCC, FG

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
122.13 g/molcalc.
Exact mass
122.048 Dacalc.
LogP (octanol/water)
0.68calc.
Topological polar surface area
42.85 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
1calc.
Heavy atoms
9calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.17calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, c1cnccn1

c1cnccn1

1 ring, 6 atoms, the Pyrazine ring system.

6,118 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (16)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • 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

Acetylpyrazine suppliers

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Where suppliers are based

50 suppliers in 11 countries

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Acetylpyrazine 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

Cosmetic ingredient, INCI name METHYL PYRAZINYL KETONE(perfuming)

Roles

  • additive
  • flavouring agent
  • food additive
  • food component
  • physiological role

Functional uses

  • Flavouring and nutrient
  • Fragrance

Cosmetic functions

  • Perfuming

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory

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 Acetylpyrazine is traded under.

HS 2933.99Indicative HS code

Heterocyclic compounds with nitrogen hetero-atom(s) only, other

World exports in 2024
$12.1B
−31.0% vs 2023, imports $28.8B
2019 to 2024
Top exporters
  1. China30.5%
  2. India * partner reported16.3%
  3. Ireland9.0%
Top importers
  1. Slovenia31.7%
  2. Italy24.2%
  3. United States5.0%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Acetylpyrazine?

2-acetylpyrazine is a pyrazine that is substituted by an acetyl group at position 2. It has been identified as one of the volatile flavor constituents in popcorn, bread crust, vinegar, and potato snacks. It has a role as a flavouring agent. It is a member of pyrazines and an aromatic ketone.

What is the CAS number of Acetylpyrazine?

The CAS registry number of Acetylpyrazine is 22047-25-2.

What is the molecular formula and weight of Acetylpyrazine?

The molecular formula of Acetylpyrazine is C6H6N2O and its molar mass is 122.13 g/mol.

What is Acetylpyrazine used for?

Known uses and roles of Acetylpyrazine include fragrance ingredients in cosmetics and personal care, flavors in food and beverage, flavoring agents in flavors and fragrances, fragrance ingredients in flavors and fragrances, aldehydes and ketones in flavors and fragrances and 9 more.

Is Acetylpyrazine hazardous?

Acetylpyrazine carries the GHS signal word "Warning". Main hazards: causes skin irritation, causes serious eye irritation, may cause respiratory irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Acetylpyrazine?

Acetylpyrazine is usually classified under HS code 293399 (Heterocyclic compounds with nitrogen hetero-atom(s) only, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Acetylpyrazine?

CompoundList lists 50 suppliers of Acetylpyrazine in China, United States, Canada, France and 7 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Acetylpyrazine in India?

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

What is the price of Acetylpyrazine?

Suppliers quote Acetylpyrazine 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 Acetylpyrazine

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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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