2,3,5-三甲基吡嗪

Description

Trimethylpyrazine is identified by CAS 14667-55-1, molecular formula C7H10N2 and molecular weight 122.08 g/mol. UNII Q8PR0W8TIT; ChEBI 190131; InChIKey IAEGWXHKWJGQAZ-UHFFFAOYSA-N. Boiling Point: 171 °C; Density: 0.960-0.990; LogP: 0.95.

Identification

CAS Registry Number	14667-55-1
PubChem CID	26808
Molecular formula	C7H10N2
Molecular weight	122.08 g/mol
IUPAC name	2,3,5-trimethylpyrazine
InChIKey	IAEGWXHKWJGQAZ-UHFFFAOYSA-N
UNII (FDA)	Q8PR0W8TIT
ChEBI ID	CHEBI:190131
FEMA number	3244
JECFA number	774

Computed Descriptors

Molecular Weight	122.17
XLogP3	1
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	0
Exact Mass	122.084398327
Monoisotopic Mass	122.084398327
Topological Polar Surface Area	25.8
Heavy Atom Count	9
Formal Charge	0

Physical & Chemical Properties

Boiling Point	171 °C
Density	0.960-0.990
LogP	0.95
Refractive Index	1.500-1.509

Physical description & handling notes

• Liquid
• colourless to slightly yellow liquid with a roasted nut, baked potato odour
• soluble in water, oils, organic solvents
• miscible at room temperature (in ethanol)

Regulatory Status

Regulatory & Food Contact	EU Flavoring substances FDA Substance added to food: FLAVORING AGENT OR ADJUVANT Flavoring Agents FLAVOURING_AGENT: Flavouring Agent Cocoa, Earth, Must, Potato, Roast No safety concern at current levels of intake when used as a flavouring agent

GHS Hazard Classification

Reported hazard statements	H226 (99.7%), H302 (100%), H319 (10.4%)

Documented Uses

• Flavoring Agents -> JECFA Flavorings Index
• Flavouring Agent -> FLAVOURING_AGENT -> JECFA Functional Classes
• Information on 1 consumer products that contain Trimethylpyrazine in the following categories is provided:
• Pyrazine, 2,3,5-trimethyl-: ACTIVE

Synonyms

2,3,5-Trimethylpyrazine; 14667-55-1; TRIMETHYLPYRAZINE; Pyrazine, trimethyl-; 2,3,5-Trimethyl pyrazine; 2,3,6-Trimethylpyrazine; FEMA No. 3244; DTXSID1047075; Q8PR0W8TIT; DTXCID9027075; CHEBI:190131; RefChem:441845; 238-712-0; Pyrazine, 2,3,5-trimethyl-; Trimethyl-pyrazine; trimethyl pyrazine

Frequently Asked Questions

What are the CAS number and molecular formula of Trimethylpyrazine?

CAS 14667-55-1; molecular formula C7H10N2; molecular weight 122.08 g/mol.

What other names is Trimethylpyrazine known by?

2,3,5-Trimethylpyrazine, 14667-55-1, TRIMETHYLPYRAZINE, Pyrazine, trimethyl-, 2,3,5-Trimethyl pyrazine, 2,3,6-Trimethylpyrazine.

What is the regulatory status of Trimethylpyrazine?

Documented regulatory listings: EU Flavoring substances; FDA Substance added to food: FLAVORING AGENT OR ADJUVANT; Flavoring Agents.

Is Trimethylpyrazine classified as hazardous?

Hazard statements reported: H226, H302, H319.

What are the key physical properties of Trimethylpyrazine?

Boiling Point: 171 °C; Density: 0.960-0.990; LogP: 0.95; Refractive Index: 1.500-1.509.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.