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HCID 26331Erstellt: 24. Oktober 2026

Ethylpyrazin

2-ETHYLPYRAZINE · Pyrazine, ethyl- · FEMA 3281 · ethyl-pyrazin · ETHYLPYRAZINE · FEMA NUMBER 3281 · ETHYLPYRAZINE, 2- · Ethylpyrazine,98%

https://huagongshe.com/de/chemical/26331

Molekülstruktur von Ethylpyrazin

Identifikatoren & physikalische Daten

CAS No.1392-50-3
SummenformelC6H8N2
Durchschnittliche Molmasse108,14 g/mol
Monoisotopische Masse108,06874826 g/mol
SMILESCCc1cnccn1
InChIKeyKVFIJIWMDBAGDP-UHFFFAOYSA-N
PubChem CID26331
ChEMBLCHEMBL97525
ChEBICHEBI:73232
EC No.237-691-5
DTXSIDDTXSID2065676
Lokaler NameEthylpyrazin

Chemische & physikalische Eigenschaften

XLogP0,7
Polarare Oberfläche (TPSA)25,8
H-Brücken-Donoren0
H-Brücken-Akzeptoren2
Frei drehbare Bindungen1
Schwere Atome8
Formalladung0
Komplexität63,5
StoffklassenNitrogen Compounds -> Pyrazines
DuftstoffeFragrance Ingredient (2-Ethylpyrazine) -> IFRA transparency List
LogP (Verteilungskoeffizient)0.690.79
LebensmittelzusatzstoffeFLAVOR ENHANCER, FLAVORING AGENT OR ADJUVANT -> FDA Substance added to food
Dichte0.981-1.0000.984 g/mL at 25 °C (lit.)
AromastoffeEU Flavoring substances
Löslichkeitsoluble in water, organic solvents, oilsmiscible at room temperature (in ethanol)freely soluble
Siedepunkt152.00 to 153.00 °C. @ 760.00 mm Hg152 °C152-153 °C (lit.)
Dampfdruck1.67 [mmHg]
Brechungsindex1.493-1.508n20/D 1.498(lit.)
Physical DescriptionColorless liquid[Alfa Aesar MSDS]colourless to pale yellow liquid with a musty, nutty, peanut butter odour
Schmelzpunkt155 °C
FEMA3281 | 2-ETHYLPYRAZINE
Flammpunkt109 °F
LagerbedingungenSealed in dry,Room Temperature
AggregatzustandLiquid
pKa (Säurekonstante)1.62±0.10(Predicted)
FarbeColorless to Light yellow to Light orange
Wichte0.984
Geruchat 1.00 % in dipropylene glycol. peanut butter musty nutty woody roasted cocoa
Geruchsartnutty
Biologische Quellesynthetic
JECFA Number762
BRN108200
Henry-Konstante4.0×100 mol/(m3Pa) at 25℃, Buttery et al. (1971)
InChI1S/C6H8N2/c1-2-6-5-7-3-4-8-6/h3-5H,2H2,1H3
InChIKeyKVFIJIWMDBAGDP-UHFFFAOYSA-N
SMILESCCc1cnccn1
LogP (Verteilungskoeffizient)0.69
CAS Datenbank13925-00-3(CAS DataBase Reference)
NIST chemische InformationenPyrazine, ethyl-(13925-00-3)
EPA chemische InformationenPyrazine, ethyl- (13925-00-3)

Sicherheit & Vorschriften

GHS-EinstufungWarningH226 (14.4%): Flammable liquid and vapor [Warning Flammable liquids]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)Aggregated GHS information provided per 1503 reports by companies from 9 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Regulatorische InformationenChemical: Pyrazine, ethyl-Regulation (EC) No 1831/2003 (amended)2-Ethylpyrazine: Does not have an individual approval but may be used under an appropriate group standard
GefahrenübersichtSafe when used as a flavoring agent in food[JECFA] A skin and strong eye irritant[Alfa Aesar MSDS]
Hazard Classes and CategoriesFlam. Liq. 3 (14.4%)
Wassergefährdungsklasse (WGK)3
TSCA-Inventar-StatusTSCA listed
UN-TransportnummerUN 1993 3/PG 3
Zollcode29339990
RTECS-Nr.UQ3330000
R-Sätze (R)10-41-37/38-22
GefahrensymboleXi,Xn
Sicherheitshinweise (S)16-39-26
Gefahrenklasse3Acute Tox. 4 OralFlam. Liq. 3
VerpackungsgruppeIII
Lagerklasse3 - Flammable liquids

Anwendungen & Verwendung

Occurrence

Reported found in bakery products, cocoa products, coffee, meat, peanuts, filberts, potato products, beer, whiskey, tea, soybeans, rice, roasted coconut, corn tortillas, shrimp, crayfish, asparagus, boiled beef, malt whiskey, and malt

Verwenden

Ethylpyrazine is a reagent used in the synthetic preparation of various pharmaceutical goods and has been screened for potential activities as H1-antihistamine.

Herstellung & Synthese

synthetische

By alkylation of methylpyrazine with methyliodide.