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InventoryRef 3924502/03/2011

2,5-DIMETHYLPYRAZINE

2,5-Dimethylpyrazine

2,5-DIMETHYLPYRAZINE is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

Regulatory evidence by market

No rule for this ingredient has been imported for any of the 13 markets tracked here.

That describes this inventory, not the law. No imported rule is not evidence that an ingredient is permitted: a rule may exist under another name or identifier, or in a dataset not yet imported here.

Chemical identity and properties

PubChem 2D chemical structure for CAS 123-32-0
CAS 123-32-0PubChem CID 31252

2,5-Dimethylpyrazine

2,5-Dimethylpyrazine is a member of pyrazines. ChEBI

IUPAC name
2,5-dimethylpyrazine
Molecular formula
C6H8N2
Molecular weight
108.14 g/mol
Exact mass
108.068748264 Da
XLogP3
0.6
Topological polar surface area
25.8 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

Pyrazine, 2,5-dimethyl-2,5-Dimethyl-1,4-diazineKetineFEMA No. 3272V99Y0MUY1QNSC-49139RefChem:82971204-618-3
16 more reported names
2,5-Dimethyl pyrazineNSC 491392,5-Dimethylpiazine2,5-Dimethylparadiazine2,5-Dimethyl-pyrazinePYRAZINE,2,5-DIMETHYLFEMA 3272AC-10703HY-344392,5-Dimethylpyrazine (contains 2,6-isomer)D2171F0001-0364CCRIS 29292,5-Dimethylpyrazine (natural)EINECS 204-618-3UNII-V99Y0MUY1Q
External database identifiers

Evidence from additional scientific databases

NIH PubChem PUG-View
Exact identifier match31252

Attributed physical-property, hazard, environmental and use annotations.

  • Signal: Warning Source: European Chemicals Agency (ECHA)
  • GHS Hazard Statements: H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral] Source: European Chemicals Agency (ECHA)
  • Precautionary Statement Codes: P264, P270, P301+P317, P330, and P501 (click each P-code to see the statement) Source: European Chemicals Agency (ECHA)
  • ECHA C&L Notifications Summary: Aggregated GHS information provided per 1762 reports by companies from 9 notifications to the ECHA C&L Inventory.; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
  • Signal: Warning Source: NITE-CMC
  • GHS Hazard Statements: H226: Flammable liquid and vapor [Warning Flammable liquids]; H302: Harmful if swallowed [Warning Acute toxicity, oral] Source: NITE-CMC
  • Precautionary Statement Codes: P210, P233, P240, P241, P242, P243, P264, P270, P280, P301+P317, P303+P361+P353, P330, P370+P378, P403+P235, and P501 (click each P-code to see the statement) Source: NITE-CMC

Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record

Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.

Additional source coverage and match status
SourceResultChecked
NIH PubChem PUG-ViewExact match2026-08-31

A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Inventory details for 2,5-DIMETHYLPYRAZINE

INCI name

2,5-DIMETHYLPYRAZINE

Description

2,5-Dimethylpyrazine

Record provenance

Inventory reference
39245
Imported identity
2,5-DIMETHYLPYRAZINE
Source update
02/03/2011
European Commission CosIng source notes

Key data

Restriction
Function
PERFUMING
Used for perfume and aromatic raw materials.

Ingredients with overlapping formulation functions

Additional official and scientific sources

11 external databases to check this identity in

How 2,5-DIMETHYLPYRAZINE appears in the CosIng inventory

The CosIng inventory lists 2,5-DIMETHYLPYRAZINE as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.

2,5-DIMETHYLPYRAZINE is also tagged with 1 cosmetic function in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

2,5-DIMETHYLPYRAZINE is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Absence of an annex link does not guarantee unrestricted use — always verify against the current official CosIng database before formulating.

According to the EU CosIng inventory, 2,5-DIMETHYLPYRAZINE carries the following function designation(s):

CAS 123-32-0 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.

Use the INCI Checker to screen a full ingredient list across selected markets, or compare this substance across all supported market datasets.

Source note for 2,5-DIMETHYLPYRAZINE

This page reproduces the CosIng inventory entry for 2,5-DIMETHYLPYRAZINE from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.

Use this inventory page to research 2,5-DIMETHYLPYRAZINE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

Tools & next steps

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