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HCID 22201Erstellt: 25. Oktober 2026

2,3-Dimethylpyrazin

Pyrazine, 2,3-dimethyl- · FEMA 3271 · 2,3-Dimethylpyrazine >=99.0% · FEMA NUMBER 3271 · DIMETHYLPYRAZINES · 2,3-dimethyl-pyrazin · 2,3-DIMETHYLPYRAZINE · 2,3-Dimethyloyrazine

https://huagongshe.com/de/chemical/22201

Molekülstruktur von 2,3-Dimethylpyrazin

Identifikatoren & physikalische Daten

CAS No.25704-73-8
SummenformelC6H8N2
Durchschnittliche Molmasse108,14 g/mol
Monoisotopische Masse108,06874826 g/mol
SMILESCc1nccnc1C
InChIKeyOXQOBQJCDNLAPO-UHFFFAOYSA-N
PubChem CID22201
ChEMBLCHEMBL96425
ChEBICHEBI:193606
EC No.227-630-0
DTXSIDDTXSID4064058
Lokaler Name2,3-Dimethylpyrazin

Chemische & physikalische Eigenschaften

XLogP0,5
Polarare Oberfläche (TPSA)25,8
H-Brücken-Donoren0
H-Brücken-Akzeptoren2
Frei drehbare Bindungen0
Schwere Atome8
Formalladung0
Komplexität62,9
StoffklassenNitrogen Compounds -> Pyrazines
SpringerMaterials Properties15N nuclear magnetic resonance spectrum
DuftstoffeFragrance Ingredient (2,3-Dimethylpyrazine) -> IFRA transparency List
LogP (Verteilungskoeffizient)0.54
LebensmittelzusatzstoffeFLAVORING AGENT OR ADJUVANT -> FDA Substance added to food
Dichte0.997-1.0301.011 g/mL at 25 °C (lit.)
AromastoffeEU Flavoring substances
Löslichkeitsoluble in water, organic solvents, oilsmiscible at room temperature (in ethanol)Chloroform (Sparingly), Methanol (Slightly)
Siedepunkt155.00 to 157.00 °C. @ 760.00 mm Hg156 °C156 °C (lit.)
Dampfdruck1.5 [mmHg]
Brechungsindex1.501-1.510n20/D 1.507(lit.)
Physical DescriptionColorless liquid with a pleasant odor[Alfa Aesar MSDS]colourless to light yellow liquid with a nutty, cocoa-like odour
Schmelzpunkt11-13 °C
FEMA3271 | 2,3-DIMETHYLPYRAZINE
Flammpunkt130 °F
LagerbedingungenInert atmosphere,Room Temperature
pKa (Säurekonstante)2.21±0.10(Predicted)
Aggregatzustandclear liquid
Wichte1.022
FarbeColorless to Light orange to Yellow
pH7 (H2O, 20℃)
Geruchroasted odor, reminiscent of nuts
Geruchsartnutty
Biologische Quellesynthetic
JECFA Number765
BRN107908
Hauptanwendungenflavors and fragrances
InChI1S/C6H8N2/c1-5-6(2)8-4-3-7-5/h3-4H,1-2H3
InChIKeyOXQOBQJCDNLAPO-UHFFFAOYSA-N
SMILESCc1nccnc1C
LogP (Verteilungskoeffizient)0.64
CAS Datenbank5910-89-4(CAS DataBase Reference)
NIST chemische InformationenPyrazine, 2,3-dimethyl-(5910-89-4)
EPA chemische InformationenPyrazine, 2,3-dimethyl- (5910-89-4)

Sicherheit & Vorschriften

GHS-EinstufungWarningH226 (100%): 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 1668 reports by companies from 9 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Regulatorische InformationenChemical: Pyrazine, 2,3-dimethyl-Regulation (EC) No 1831/2003 (amended)2,3-Dimethylpyrazine: 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 irritantHarmful by ingestion[Alfa Aesar MSDS]
Hazard Classes and CategoriesFlam. Liq. 3 (100%)
Wassergefährdungsklasse (WGK)3
TSCA-Inventar-StatusTSCA listed
UN-TransportnummerUN 1993 3/PG 3
Zollcode29339990
RTECS-Nr.UQ2625000
R-Sätze (R)10-22-37/38-41
GefahrensymboleXn,F,Xi
hazard_noteIrritant/Flammable
Sicherheitshinweise (S)16-26-39
Gefahrenklasse3Acute Tox. 4 OralEye Dam. 1Flam. Liq. 3Skin Irrit. 2STOT SE 3
VerpackungsgruppeIII
Lagerklasse3 - Flammable liquids