2,5-Dimethyl pyrazine

Product Name: 2,5-Dimethyl pyrazine
CAS No.: 123-32-0
Chemical Name: 2,5-Dimethyl pyrazine
Synonyms: tomfor;KETINE;GLYCOLINE;FEMA 3272;2,5-Dimethyl;FEMA NUMBER 3272;2,5-Dimethylprazin;5-diMethyl pyrazine;2,5-Dimethylpiazine;2,5-dimethyl-pyrazin
CBNumber: CB0159355
Molecular Formula: C6H8N2
Formula Weight: 108.14
MOL File: 123-32-0.mol

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2,5-Dimethyl pyrazine Property

Melting point:: 15°C
Boiling point:: 155 °C(lit.)
Density: 0.99 g/mL at 25 °C(lit.)
FEMA: 3272 | 2,5-DIMETHYLPYRAZINE
refractive index: n20/D 1.502(lit.)
Flash point:: 147 °F
storage temp.: Store below +30°C.
form: Liquid
pka: 2.21±0.10(Predicted)
Specific Gravity: 0.990
color: Clear colorless to pale yellow
PH: 7 (H2O)
Sensitive: Hygroscopic
JECFA Number: 766
BRN: 107052
CAS DataBase Reference: 123-32-0(CAS DataBase Reference)
NIST Chemistry Reference: Pyrazine, 2,5-dimethyl-(123-32-0)
EPA Substance Registry System: Pyrazine, 2,5-dimethyl- (123-32-0)

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Safety

Hazard Codes: Xn,Xi
Risk Statements: 22-36/37/38-R22
Safety Statements: 26-36
RIDADR: NA 1993 / PGIII
WGK Germany: 3
RTECS: UQ2800000
Hazard Note: Irritant
TSCA: Yes
HS Code: 29339990

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H227Combustible liquid

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.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P280Wear protective gloves/protective clothing/eye protection/face protection.

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

P403+P235Store in a well-ventilated place. Keep cool.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 175420
Product name: 2,5-Dimethylpyrazine
Purity: 98%
Packaging: 5g
Price: $34.9
Updated: 2020/08/18

Sigma-Aldrich

Product number: 84233
Product name: 2,5-Dimethylpyrazine
Purity: analytical standard
Packaging: 1ml
Price: $59.4
Updated: 2020/08/18

TCI Chemical

Product number: D1526
Product name: 2,5-Dimethylpyrazine (contains 2,6-isomer)
Purity: >80.0%(GC)
Packaging: 25mL
Price: $27
Updated: 2020/06/24

TCI Chemical

Product number: D1526
Product name: 2,5-Dimethylpyrazine (contains 2,6-isomer)
Purity: >80.0%(GC)
Packaging: 500mL
Price: $295
Updated: 2020/06/24

Alfa Aesar

Product number: A12352
Product name: 2,5-Dimethylpyrazine, 99%
Packaging: 5g
Price: $30
Updated: 2020/06/24

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2,5-Dimethyl pyrazine Chemical Properties,Usage,Production

Chemical Properties

clear colorless to pale yellow liquid

Chemical Properties

2,5-Dimethylpyrazine has a characteristic odor of earthy, potato-like odor.

Occurrence

Reported to be present in bakery products, roasted barley, cocoa products, roasted coffee, dairy products, pork, peanuts, pecans, filberts, popcorn, potato products, rum and whiskey, soy products; a volatile component in roasted filberts and in potato chips; reportedly identified in the fat of cooked beef; also reported found in toasted off-flavors. Also reported in cheeses, butter, boiled eggs, grilled beef, tea, barley, oats, oatmeal, soybeans, heated beans, kohlrabi, shrimp and mushrooms. Also reported found in coffee, potato chips and shrimp

Uses

2,5-Dimethyl pyrazine is used for blending food, nuts and beverage flavors.

Preparation

By the interaction of acrolein and ammonia when heated in glycerol in the presence of ammonium salts; by self-condensation of aminoacetone, followed by oxidation with mercury chloride.

Aroma threshold values

Detection: 80 ppb to 1.8 ppm

Taste threshold values

Taste characteristics at 7.5 ppm: musty, potato, cocoa and nutty with a fatty and oily nuance

Safety Profile

Moderately toxic by ingestion and intraperitoneal routes. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx

Purification Methods

Purify it via its picrate (m 150o) which is decomposed with a base (e,g, KOH) and distilled. [Wiggins and Wise J Chem Soc 4780 1956]. [Beilstein 23/5 V 403.]

2,5-Dimethyl pyrazine Preparation Products And Raw materials

Raw materials

Acrolein

Preparation Products

trans-2,5-Dimethylpiperazine 2,6-Dimethylpyrazine

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2,5-Dimethyl pyrazine Suppliers

Belgium 1 China 249 Europe 3 France 1 Germany 3 India 1 Japan 5 Norway 1 Slovakia 1 South Korea 2 Switzerland 1 The Netherlands 1 United Kingdom 16 United States 39 Global 324

J & K SCIENTIFIC LTD.

Tel: 010-82848833- ;010-82848833-
Fax: 86-10-82849933
Email: jkinfo@jkchemical.com;market6@jkchemical.com
Country: China
ProdList: 96815
Advantage: 76

Meryer (Shanghai) Chemical Technology Co., Ltd.

Tel: 21-61259100-
Fax: 86-21-61259102
Email: sh@meryer.com
Country: China
ProdList: 40265
Advantage: 62

Alfa Aesar

Tel: 400-610-6006; 021-67582000
Fax: 021-67582001/03/05
Email: saleschina@alfa-asia.com
Country: China
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TCI (Shanghai) Development Co., Ltd.

Tel: 021-67121386 / 800-988-0390
Fax: 021-67121385
Email: Sales-CN@TCIchemicals.com
Country: China
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Beijing dtftchem Technology Co., Ltd.

Tel: 010-60275820-
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Email: elainezt@sina.com
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Energy Chemical

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Email: sales8178@energy-chemical.com
Country: China
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Capot Chemical Co., Ltd

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Email: sales@capotchem.com
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Beijing Ouhe Technology Co., Ltd

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Fax: +86-10-82967029
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ProdList: 12282
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JinYan Chemicals(ShangHai) Co.,Ltd.

Tel: 13817811078,021-50426030
Fax: 86-021-50426522,50426273
Email: sales@jingyan-chemical.com
Country: China
ProdList: 10006
Advantage: 60

Jia Xing Isenchem Co.,Ltd

Tel: 0573-85285100-
Fax: 0573-85285100
Email: isenchem@163.com
Country: China
ProdList: 9652
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View Lastest Price from 2,5-Dimethyl pyrazine manufacturers

Wuhan Bosman Medicine Tech Co.,LTD

Product: 2,5-Dimethyl pyrazine 123-32-0
Price: US $10.00/g
Min. Order: 10g
Purity: 99%
Supply Ability: 500T
Release date: 2020-11-30

Longyan Tianhua Biological Technology Co., Ltd

Product: 2,5-Dimethyl pyrazine 123-32-0
Price: US $40.00/KG
Min. Order: 1KG
Purity: 98%
Supply Ability: 1000kg
Release date: 2020-10-26

Shaanxi Dideu Medichem Co. Ltd

Product: 2,5-Difluorobenzonitrile 123-32-0
Price: US $1.00-0.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 50 tons
Release date: 2020-01-19

123-32-0, 2,5-Dimethyl pyrazineRelated Search:

Trimethyl-pyrazine DIMETHYL DIHYDROCYCLOPENTAPYRAZINE 2,3-Diethyl-5-methylpyrazine Glipizide 2,5-Dimethyl pyrazine Dacthal Pyrazinamide N,N-Dimethylformamide Dimethyl phthalate Dimethyl sulfate ETHANE DIMETHYLPYRAZINE 2,6-Dimethylpyrazine 2-Methylpyrazine 2,5-Dibromopyrazine DMC Dimethyl ether Dimethyl fumarate

2,5-Dimethylprazin

2,5-Dimethylpyrazine (contains 2,6-isomer)

2,5-DIMETHYL PYRAZINE, NATURAL

2,5-Dimethylpyrazine,99%

5-diMethyl pyrazine

2,5-DiMethylpyrazine, 99% 25GR

2,5-DiMethylpyrazine, 99% 5GR

2,5-Dimethylpyrazine, Research grade

2,5-Dimethyl pyrazine >=99.0%

2,5-DIMETHYLPYRAZINE FOR SYNTHESIS

2,5-DiMethyl pyrazzine

Natural 2,5-DiMethyl pyrazine

2,5- twoMethyl pyrazine

tomfor

2,5-dimethyl-pyrazin

2,5 AND 2,6-DIMETHYL PYRAZINE

2,5-DIMETHYL-1,4-DIAZINE

2,5-DIMETHYLPYRAZINE

2,5-DIMETHYLPYRAZINE AND 2,6-DIMETHYLPYRAZINE

2,5(2,6)-DIMETHYLPYRAZINE MIXTURE

2,5-Dimethyl paradiazine

2 5-DIMETHYLPYRAZINE FCC

2,5-Dimethyl-p-diazine

2,5-Dimethylpiazine

dimethylpyrazine,2,5-dimethylpyrazine,2,5-dimethyl-1,4-diazine

2,5-Dimethyl

Pyrazine,2,5-dimethyl-

KETINE

GLYCOLINE

FEMA 3272

FEMA NUMBER 3272

FEMA NUMBER 3272 AND 3273

2,5(or6)-Dimethyl pyrazine

2,5-DIMETHYLPYRAZINE (CONTAINS CA. 5% 2,6-ISOMER) 94+%

2,5-DIMETHYL PYRAZINE FEMA NO.3272

2,5-DIMETHYLPYRAZINE (CONTAINS 2,6-ISOMER) 80+%

2,3,5-TRMETHYLPYRAZINE

2,5-Dimethylpyrazine≥ 99% (GC)

2,5-Dimethylpyrazine 98+%

Glipizide Impurity 17

2,5-Dimethylpyrazine &gt

2,5-Dimethylpyrazine, Flavour grade

2,5-Dimethylpyrazine (contains 2,6-isomer)&gt

2,5(or6)-Dimethyl pyrazine fandachem

2,5-Dimethyl pyrazine fandachem

123-32-0

123-23-0

3123-32-0

-NCCH3CHNCCH3CH

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