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CAS 123-32-0

CAS 123-32-0 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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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
Open full PubChem recordPubChem annotations3D structure image
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.

Records for CAS 123-32-0

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No records found for this CAS number.

How CAS 123-32-0 is used on this site

CAS 123-32-0 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 123-32-0 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.