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W327204

Sigma-Aldrich

2,5-Dimethylpyrazin

≥98%, FG

Synonym(e):

Ketine

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About This Item

Empirische Formel (Hill-System):
C6H8N2
CAS-Nummer:
123-32-0
Molekulargewicht:
108.14
FEMA-Nummer:
3272
Beilstein:
107052
EG-Nummer:
204-618-3
CoE-Nummer:
2210
MDL-Nummer:
MFCD00006147
UNSPSC-Code:
12164502
PubChem Substanz-ID:
24901599
Flavis-Nummer:
14.020
NACRES:
NA.21

Biologische Quelle

synthetic

Qualitätsniveau

400

Qualität

FG
Fragrance grade
Halal
Kosher

Agentur

follows IFRA guidelines

Einhaltung gesetzlicher Vorschriften

EU Regulation 1223/2009
EU Regulation 1334/2008 & 178/2002

Assay

≥98%

Brechungsindex

n20/D 1.502 (lit.)

bp

155 °C (lit.)

Dichte

0.99 g/mL at 25 °C (lit.)

Anwendung(en)

flavors and fragrances

Dokumentation

see Safety & Documentation for available documents

Nahrungsmittelallergen

no known allergens

Allergener Duftstoff

no known allergens

Organoleptisch

cocoa; nutty; woody; earthy

SMILES String

Cc1cnc(C)cn1

InChI

1S/C6H8N2/c1-5-3-8-6(2)4-7-5/h3-4H,1-2H3

InChIKey

LCZUOKDVTBMCMX-UHFFFAOYSA-N

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Verwandte Kategorien

Allgemeine Beschreibung

2,5-Dimethylpyrazine is a pyrazine compound that is mainly formed in food products such as cooked rice or roasted peanuts due to the Maillard reaction between sugars and proteins during cooking or roasting process.

Anwendung


  • Engineering Escherichia coli for high-yielding 2,5-Dimethylpyrazine synthesis from L-Threonine by reconstructing metabolic pathways and enhancing cofactors regeneration.: This study details the genetic engineering of *E. coli* to enhance the production of 2,5-Dimethylpyrazine from L-Threonine. By reconstructing metabolic pathways and improving cofactor regeneration, the researchers achieved higher yields, presenting a significant advancement for industrial bioproduction of this compound (Liu et al., 2024).

  • Pyrazines Biosynthesis by Bacillus Strains Isolated from Natto Fermented Soybean.: This research explores the natural biosynthesis of pyrazines, including 2,5-Dimethylpyrazine, by *Bacillus* strains isolated from natto. The findings contribute to understanding the microbial production of flavor compounds and their potential applications in food biotechnology (Klosowski et al., 2021).

Sonstige Hinweise

remainder 2,6-dimethylpyrazine

Piktogramme

Exclamation mark
GHS07

Signalwort

Warning

H-Sätze

H302

Gefahreneinstufungen

Acute Tox. 4 Oral

Lagerklassenschlüssel

10 - Combustible liquids

WGK

WGK 3

Flammpunkt (°F)

147.2 °F - closed cup

Flammpunkt (°C)

64 °C - closed cup

Persönliche Schutzausrüstung

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Analysenzertifikate (COA)

Suchen Sie nach Analysenzertifikate (COA), indem Sie die Lot-/Chargennummer des Produkts eingeben. Lot- und Chargennummern sind auf dem Produktetikett hinter den Wörtern ‘Lot’ oder ‘Batch’ (Lot oder Charge) zu finden.

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Die Dokumentenbibliothek aufrufen

Flavor components of roasted peanuts. Some low molecular weight pyrazines and pyrrole.
Mason ME, et al.
Journal of Agricultural and Food Chemistry, 14(5), 454-460 (1966)
Roger N Thompson et al.
Chemical senses, 31(7), 613-619 (2006-06-08)
The social and reproductive behaviors of most mammals are modulated by pheromones, which are perceived by the vomeronasal organ (VNO). Vomeronasal transduction in vertebrates is activated through G-protein-coupled receptors, which in turn leads to the generation of inositol 1,4,5-trisphosphate (IP(3))
Katharina Mamasuew et al.
Chemical senses, 36(3), 271-282 (2010-12-15)
Based on a variety of recent findings, the Grueneberg ganglion (GG) in the vestibule of the nasal cavity is considered as an olfactory compartment. However, defined chemical substances that activate GG neurons have not been identified. In this study, the
Andrew M Duffin et al.
The journal of physical chemistry. A, 111(51), 13330-13338 (2007-12-01)
The quantum yield for HCN formation via 248 nm photodissociation of 2,3-, 2,5-, and 2,6-dimethylpyrazine (DMP, C6N2H8) was measured using diode laser probing of the HCN photoproduct. The total quantum yield is phi = 0.039 +/- 0.07, 0.14 +/- 0.02
Roger N Thompson et al.
Chemical senses, 29(9), 749-754 (2004-12-03)
Social behaviors of most mammals are affected by chemical signals, pheromones, exchanged between conspecifics. Previous experiments have shown that behavioral responses to the same pheromone differ depending on the sex and endocrine status of the respondent. Although the exact mechanism
Alle zugehörigen Dokumente anzeigen

Protokolle

GC Analysis of Pyrazines in Peanut Butter

Separation of 2-Ethyl-3-methylpyrazine; 1-Methylpyrrole; 2,3-Dimethylpyrazine; 2,5-Dimethylpyrazine; 2-Ethylpyrazine, ≥98%, FG; 2,3-Diethylpyrazine; 2-Methylpyrazine; Carbon disulfide; Dimethyl disulfide; 2,6-Dimethylpyrazine

GC Analysis of Volatiles in Roasted Coffee Beans on Omegawax® after SPME using a 50/30 µm DVB/Carboxen/PDMS Fiber

-Cymene; 2,5-Dimethylpyrrole; Acetoin, ≥96%, FCC, FG; 2,5-Dimethylpyrazine; 2,6-Dimethylpyrazine; 2-Ethylpyrazine, ≥98%, FG; 2,3-Dimethylpyrazine; 4-Heptanone; 3-Ethylpyridine; 2,3,5-Trimethylpyrazine; Furfural; Pyrrole; Furfuryl acetate; Linalool; Linalyl acetate; 5-Methylfurfural; γ-Butyrolactone; 2-Acetyl-1-methylpyrrole; Furfuryl alcohol; 2-Acetylpyrrole; Pyrrole-2-carboxaldehyde

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