5-甲基-6,7-二氢-5H-环戊(b)吡嗪

Description

5-Methyl-6,7-dihydro-5H-cyclopenta(b)pyrazine · CAS 23747-48-0 · C8H10N2. UNII L5IDR3PHAV. Boiling Point: 200 °C; Density: 1.048-1.059; Refractive Index: 1.525-1.535.

Identification

CAS Registry Number	23747-48-0
PubChem CID	32065
Molecular formula	C8H10N2
IUPAC name	5-methyl-6,7-dihydro-5H-cyclopenta[b]pyrazine
UNII (FDA)	L5IDR3PHAV
FEMA number	3306
JECFA number	781

Computed Descriptors

Molecular Weight	134.18
XLogP3	0.8
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	0
Exact Mass	134.084398327
Monoisotopic Mass	134.084398327
Topological Polar Surface Area	25.8
Heavy Atom Count	10
Formal Charge	0

Physical & Chemical Properties

Boiling Point	200 °C
Density	1.048-1.059
Refractive Index	1.525-1.535

Physical description & handling notes

• light yellow to amber liquid with a peanut odour
• slightly soluble in water; soluble in oils, propylene glycol, organic solvents
• miscible at room temperature (in ethanol)
• 127.6 Ų [M+H]+ [CCS Type: DT; Buffer gas: N2; Ionization: APCI+; Dataset: TOXCAST; Source Identifier: DTXSID7047196]

Regulatory Status

Regulatory & Food Contact	EU Flavoring substances FDA Substance added to food: FLAVORING AGENT OR ADJUVANT Flavoring Agents FLAVOURING_AGENT: Flavouring Agent Nuts, Peanut, Roast No safety concern at current levels of intake when used as a flavouring agent
GHS notification summary	0.1% (1 / 1501)

GHS Hazard Classification

GHS notification summary	0.1% (1 / 1501)
Reported hazard statements	H302 (96.7%)

Documented Uses

• Flavoring Agents -> JECFA Flavorings Index
• Flavouring Agent -> FLAVOURING_AGENT -> JECFA Functional Classes
• 5H-Cyclopentapyrazine, 6,7-dihydro-5-methyl-: ACTIVE

Synonyms

23747-48-0; 5-Methyl-6,7-dihydro-5H-cyclopenta[b]pyrazine; 5H-5-Methyl-6,7-dihydrocyclopentapyrazine; 6,7-Dihydro-5-methyl-5H-cyclopentapyrazine; 5H-Cyclopentapyrazine, 6,7-dihydro-5-methyl-; 5-METHYL-6,7-DIHYDRO-5H-CYCLOPENTAPYRAZINE; nutty pyrazine; FEMA No. 3306; 5-Methyl-6,7-dihydro-5H-cyclopentylpyrazine; DTXSID7047196; L5IDR3PHAV; EINECS 245-864-1; 5H-5-Methyl-6,7-dihydrocyclopenta(b)pyrazine; 5-Methyl-6,7-dihydro-5H-cyclopenta(b)pyrazine; MAPLE LACTONE PYRAZINE; DTXCID5027196

Frequently Asked Questions

What are the CAS number and molecular formula of 5-Methyl-6,7-dihydro-5H-cyclopenta(b)pyrazine?

CAS 23747-48-0; molecular formula C8H10N2; molecular weight — g/mol.

What other names is 5-Methyl-6,7-dihydro-5H-cyclopenta(b)pyrazine known by?

23747-48-0, 5-Methyl-6,7-dihydro-5H-cyclopenta[b]pyrazine, 5H-5-Methyl-6,7-dihydrocyclopentapyrazine, 6,7-Dihydro-5-methyl-5H-cyclopentapyrazine, 5H-Cyclopentapyrazine, 6,7-dihydro-5-methyl-, 5-METHYL-6,7-DIHYDRO-5H-CYCLOPENTAPYRAZINE.

What is the regulatory status of 5-Methyl-6,7-dihydro-5H-cyclopenta(b)pyrazine?

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

Is 5-Methyl-6,7-dihydro-5H-cyclopenta(b)pyrazine classified as hazardous?

0.1% of GHS notifications report no hazard classification (1 of 1501).

What are the key physical properties of 5-Methyl-6,7-dihydro-5H-cyclopenta(b)pyrazine?

Boiling Point: 200 °C; Density: 1.048-1.059; Refractive Index: 1.525-1.535.

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.