Trimethyl-pyrazine

Product Name: Trimethyl-pyrazine
CAS No.: 14667-55-1
Chemical Name: Trimethyl-pyrazine
Synonyms: Pyrazine, trimethyl-;2,3,5-TRIMETHYLPYRAZINE;TRIMETHYLPYRAZINE;2,3,5-TriMethylpyrazine 99%;FEMA 3244;FEMA NUMBER 3244;Compound Fr14500;trimethyl-pyrazin;2.3.5-Methyl pyrazine;TRIMETHYLPYRAZINE,2,3,5
CBNumber: CB3105641
Molecular Formula: C7H10N2
Formula Weight: 122.17
MOL File: 14667-55-1.mol

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Trimethyl-pyrazine Property

Melting point:: 156 °C
Boiling point:: 171-172 °C (lit.)
Density: 0.979 g/mL at 25 °C (lit.)
refractive index: n20/D 1.5040(lit.)
FEMA: 3244 | 2,3,5-TRIMETHYLPYRAZINE
Flash point:: 130 °F
storage temp.: Inert atmosphere,Room Temperature
solubility: Chloroform (Slightly)
pka: 2.69±0.10(Predicted)
form: Liquid
color: Colorless to Light yellow to Light orange
Specific Gravity: 0.979
Odor: roasted odor, reminiscent of coffee and cocoa
Odor Type: nutty
JECFA Number: 774
BRN: 2423
InChIKey: IAEGWXHKWJGQAZ-UHFFFAOYSA-N
LogP: 1.10
CAS DataBase Reference: 14667-55-1(CAS DataBase Reference)
NIST Chemistry Reference: Pyrazine, trimethyl-(14667-55-1)
EPA Substance Registry System: Trimethylpyrazine (14667-55-1)

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Safety

Hazard Codes: Xn
Risk Statements: 10-22-36/37/38
Safety Statements: 16-26-36/37/39
RIDADR: UN 1993 3/PG 3
WGK Germany: 3
RTECS: UQ3907000
TSCA: Yes
HazardClass: 3
PackingGroup: III
HS Code: 29339900
Toxicity: rat,LD50,oral,806mg/kg (806mg/kg),Drug and Chemical Toxicology. Vol. 3, Pg. 249, 1980.

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H226Flammable liquid and vapour

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: W324426
Product name: 2,3,5-Trimethylpyrazine
Purity: natural, ≥95%, FG
Packaging: 100g
Price: $490
Updated: 2024/03/01

Sigma-Aldrich

Product number: W324426
Product name: 2,3,5-Trimethylpyrazine
Purity: natural, ≥95%, FG
Packaging: 1kg
Price: $4530
Updated: 2024/03/01

Sigma-Aldrich

Product number: W324418
Product name: 2,3,5-Trimethylpyrazine
Purity: ≥99%, FCC, FG
Packaging: 100g
Price: $78.2
Updated: 2024/03/01

Sigma-Aldrich

Product number: W324418
Product name: 2,3,5-Trimethylpyrazine
Purity: ≥99%, FCC, FG
Packaging: 1kg
Price: $316
Updated: 2024/03/01

Sigma-Aldrich

Product number: W324418
Product name: 2,3,5-Trimethylpyrazine
Purity: ≥99%, FCC, FG
Packaging: 5kg
Price: $1110
Updated: 2024/03/01

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Trimethyl-pyrazine Chemical Properties,Usage,Production

Chemical Properties

CLEAR YELLOW LIQUID

Chemical Properties

2,3,5-Trimethylpyrazine has a baked potato or roasted nut aroma.

Occurrence

Reported present in bakery products, roasted barley, cocoa products, coffee, dairy products, meat, peanuts, filberts, pecans, popcorn, potato products, rum and whiskey, soy products, raw asparagus, baked potato, wheaten bread, crispbread, Swiss cheese, coffee, black tea, green tea, roasted barley, roasted filbert, heated beef, roasted peanut, soybean, raw beans, coriander seed, scallop, guava, kohlrabi, bell pepper, blue, Swiss and Gruyere cheese, boiled egg, fatty fish, beer, sherry, barley, peanut, oat products, coconut, beans, mushroom, trassi, almond, macadamia nut, sesame seed, coriander seed, rice, licorice, sweet corn, malt, peated malt, wort, krill, fermented shrimp, crab, okra, crayfish, clam, scallop and squid.

Uses

Trimethylpyrazine is a key aroma compound of dark chocolates differing in organoleptic properties.

Uses

2,3,5-Trimethylpyrazine can be used as a flavor ingredient in food industries.

Definition

ChEBI: Trimethylpyrazine is a member of the class of pyrazines that is pyrazine in which three hydrogens at positions 2, 3 and 5 have been replaced by methyl groups. It has a role as a plant metabolite, a flavouring agent, a bacterial metabolite, an animal metabolite and a pheromone.

Preparation

From 2,5-dimethylpyrazine by ring alkylation with MeLi; by condensing propylenediamine with 2,3-butanedione.

Aroma threshold values

Detection: 400 ppb to 9 ppm (9 ppm in water)

Taste threshold values

Taste characteristics at 80 ppm: raw, musty, nutty and potato.

General Description

2,3,5-Trimethylpyrazine is present in brown cheese.

Safety Profile

Moderately toxic by ingestion. Combustible liquid. When heated to decomposition emits toxic fumes of NOx.

Trimethyl-pyrazine Preparation Products And Raw materials

Raw materials

Preparation Products

2-Ethyl-3,5-dimethylpyrazine

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Trimethyl-pyrazine Suppliers

Belgium 1 Canada 1 China 325 Europe 1 France 1 Germany 7 India 7 Ireland 1 Japan 4 Norway 1 Slovakia 1 South Korea 1 Spain 2 Switzerland 3 The Netherlands 1 United Kingdom 20 United States 78 USA 1 Global 456

J & K SCIENTIFIC LTD.

Tel: 010-82848833 400-666-7788
Fax: 86-10-82849933
Email: jkinfo@jkchemical.com
Country: China
ProdList: 96815
Advantage: 76

Meryer (Shanghai) Chemical Technology Co., Ltd.

Tel: 021-61259108 18621169109
Fax: 86-21-61259102
Email: market03@meryer.com
Country: China
ProdList: 40228
Advantage: 62

INTATRADE GmbH

Tel: +49 3493/605464
Fax: +49 3493/605470
Email: sales@intatrade.de
Country: Germany
ProdList: 3572
Advantage: 66

3B Pharmachem (Wuhan) International Co.,Ltd.

Tel: 821-50328103-801 18930552037
Fax: 86-21-50328109
Email: 3bsc@sina.com
Country: China
ProdList: 15839
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future industrial shanghai co., ltd

Tel: 400-0066400 13621662912
Fax: 021-55660885
Email: sales@jonln.com
Country: China
ProdList: 1995
Advantage: 65

Alfa Aesar

Tel: 400-6106006
Fax: 021-67582001/03/05
Email: saleschina@alfa-asia.com
Country: China
ProdList: 30123
Advantage: 84

TCI (Shanghai) Development Co., Ltd.

Tel: 021-67121386
Fax: 021-67121385
Email: Sales-CN@TCIchemicals.com
Country: China
ProdList: 24529
Advantage: 81

Energy Chemical

Tel: 021-021-58432009 400-005-6266
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Capot Chemical Co., Ltd

Tel: +86 (0) 571 85 58 67 18
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Beijing Ouhe Technology Co., Ltd

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Fax: +86-10-82967029
Email: 2355560935@qq.com
Country: China
ProdList: 12390
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View Lastest Price from Trimethyl-pyrazine manufacturers

Hebei Zhuanglai Chemical Trading Co Ltd

Product: Trimethyl-pyrazine 14667-55-1
Price: US $50.00/kg
Min. Order: 1kg
Purity: 99
Supply Ability: 5000
Release date: 2024-11-18

Shandong Deshang Chemical Co., Ltd.

Product: Trimethyl-pyrazine 14667-55-1
Price: US $10.00-7.00/kg
Min. Order: 1kg
Purity: 99.99%
Supply Ability: 10 tons
Release date: 2024-06-06

Hebei Weibang Biotechnology Co., Ltd

Product: Trimethyl-pyrazine 14667-55-1
Price: US $10.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 100 mt
Release date: 2024-11-05

14667-55-1, Trimethyl-pyrazineRelated Search:

Trimethoxypropylsilane Trimethylsilyl cyanide Trimethylsilyl trifluoromethanesulfonate Trimethylsilylacetylene Trimethoxysilane Trimethyl thiazole Trimethoxysilylpropanethiol Trimethylsilyl 2-(fluorosulfonyl)difluoroacetate Trimethyl orthobenzoate 2-Acetyl-3,5-dimethylpyrazine 2,3-Diethyl-5-methylpyrazine 2,3-DICYANO-5-METHYLPYRAZINE Tetramethylpyrazine 3-Ethyl-2,5-diMethylpyrazine Trimethyl-pyrazine 3,5-dimethyl-2-propylpyrazine 2-CHLORO-3,5,6-TRIPHENYLPYRAZINE 2,3-DICYANO-5,6-DIPHENYLPYRAZINE

2,3,5-TriMethylpyrazine 99%

2,3,5-Trimethylpyrazine ,98%

2,3,5-Trimethylpyrazine,99%

2,3,5-Trimethyl-pyrazine >=99.0%

2,3,5-Trimethyl prazine

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2,3,5-Trimethylpyrazine Trimethyl-pyrazine

Natural 2,3,5-Trimethylpyrazine

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TRIMETHYLPYRAZINE

TRIMETHYLPYRAZINE,2,3,5

FEMA 3244

FEMA NUMBER 3244

2,3,6-TRIMETHYLPYRAZINE

2,3,5-TRIMETHYLPYRAZINE

trimethyl-pyrazin

2 3 5-TRIMETHYLPYRAZINE 99+% FCC

trimethyl-pyrazine,2,3,5-trimethylpyrazine

Pyrazine, trimethyl-

TRIMETHYLPYRAZINE,2,3,5-(SG)

2,3,5-TRIMETHYL PYRAZINE FEMA NO.3244

2,3,5-TRIMETHYL PYRAZINE, NATURAL

Trimethyl-pyrazine USP/EP/BP

2-Methoxy-3-sec-butyl pyrazine 24168-70-5

2,3,5-Trimethylpyrazine (AS)

Compound Fr14500

2,3,5-Trimethylpyrazine in isooctane

14667-55-1

14666-55-1

Pyrazines

Mono- & Polyalkylpyrazines

Building Blocks

Heterocyclic Building Blocks

Building Blocks

Chemical Synthesis

Heterocyclic Building Blocks

Pyrazine compounds

Building Blocks

Heterocyclic Building Blocks

Alphabetical Listings

Flavors and Fragrances

Q-Z

Mono- & Polyalkylpyrazines

pyrazine Flavor

Heterocyclic Compounds

Pyrazines