ChemicalBook > CAS DataBase List > 2-Ethyl-3,5-dimethylpyrazine

2-Ethyl-3,5-dimethylpyrazine

Product Name: 2-Ethyl-3,5-dimethylpyrazine
CAS No.: 27043-05-6
Chemical Name: 2-Ethyl-3,5-dimethylpyrazine
Synonyms: 2,6-DIMETHYL-3-ETHYLPYRAZINE;FEMA 3149;FEMA NUMBER 3149;2-Ethyl-3,5-diMethyl;DIMETHYLETHYLPYRAZINE;2-ethyl-3,-dimethylpyrazine;2-ETHYL-3,5-DIMETHYLPYRAZINE;2-ethyl-3,?-dimethyl-pyrazin;3-ethyl-3,6-dimethyl-Pyrazine;2-ETHYL-3,5(6)-DIMETHYLPYRAZINE
CBNumber: CB7133235
Molecular Formula: C8H12N2
Formula Weight: 136.19
MOL File: 27043-05-6.mol

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2-Ethyl-3,5-dimethylpyrazine Property

Boiling point:: 180-181 °C(lit.)
Density: 0.965 g/mL at 25 °C(lit.)
refractive index: n20/D 1.5015(lit.)
FEMA: 3149 | 2-ETHYL-3,(5 OR 6)-DIMETHYLPYRAZINE
Flash point:: 157 °F
storage temp.: 2-8°C
color: Colorless to Light yellow
Odor: at 0.10 % in dipropylene glycol. burnt coffee nutty roasted woody
Odor Type: burnt
biological source: synthetic
JECFA Number: 775
CAS DataBase Reference: 27043-05-6(CAS DataBase Reference)
EPA Substance Registry System: Pyrazine, 2-ethyl-3,?-dimethyl- (27043-05-6)

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Safety

Hazard Codes: Xn
Risk Statements: 22-36/37/38
Safety Statements: 26
WGK Germany: 3
HS Code: 2915.39.3500

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

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

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

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: W314900
Product name: 2-Ethyl-3(5 or 6)-dimethylpyrazine, mixture of isomers
Purity: ≥95%, FG
Packaging: 1 unit
Price: $56.3
Updated: 2025/07/31

Sigma-Aldrich

Product number: W314900
Product name: 2-Ethyl-3(5 or 6)-dimethylpyrazine, mixture of isomers
Purity: ≥95%, FG
Packaging: 1 unit
Price: $56.3
Updated: 2025/07/31

Sigma-Aldrich

Product number: W314900
Product name: 2-Ethyl-3(5 or 6)-dimethylpyrazine, mixture of isomers
Purity: FG
Packaging: 100g
Price: $119
Updated: 2025/07/31

Sigma-Aldrich

Product number: W314900
Product name: 2-Ethyl-3(5 or 6)-dimethylpyrazine, mixture of isomers
Purity: FG
Packaging: 250g
Price: $153.79
Updated: 2025/07/31

Sigma-Aldrich

Product number: W314900
Product name: 2-Ethyl-3(5 or 6)-dimethylpyrazine, mixture of isomers
Purity: FG
Packaging: 1kg
Price: $703
Updated: 2025/07/31

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2-Ethyl-3,5-dimethylpyrazine Chemical Properties,Usage,Production

Chemical Properties

clear light yellow liquid

Chemical Properties

2-Ethyl-3,(5 or 6)-dimethylpyrazine has a toasted nut, sweet woody, roasted cocoa odor.

Occurrence

Reported found in Burley and Virginia tobacco, cooked beef, Swiss cheese, roasted barley, cocoa products, coffee, meat, peanuts, filberts, pecans, popcorn, rum and whiskey, soy products, cooked potato, fried pork, beer, corn, corn tortillas, malt and cooked shrimps.

Uses

2-Ethyl-3,(5 or 6)-dimethylpyrazine is a component of the alarm pheromone of fire ant, Solenopsis invicta. 2-Ethyl-3,(5 or 6)-dimethylpyrazine has shown to attract the phyorid fyl, Pseudacteon tricuspis.

Definition

ChEBI: 2-Ethyl-3,5-dimethylpyrazine is a member of pyrazines.

Preparation

The 2-ethyl-3,5-dimethylpyrazine is obtained by alkylation of dimethyl-2, 6-pyrazine; the 2,5-dimethyl-3-ethylpyrazine is obtained by alkylation of 2,5-dimethylpyrazine with ethyllithium. A mixture of the two can be obtained by condensation of 2,3-pentanedione with propylenediamine. A mixture of the two is obtained from the side chain alkylation of trimethylpyrazine.

Aroma threshold values

Detection: 15 to 43 ppm in water. Aroma characteristics at 1.0%: peanut nutty, caramel, coffee, musty cocoa, popcorn, pyridine, graham sweet with roasted undertones

Taste threshold values

Taste characteristics at 5 ppm: peanut, nut skin, brown, roasted hazelnut with coffee and chocolate nuances.

Biological Activity

Taste at 5 ppm

2-Ethyl-3,5-dimethylpyrazine Preparation Products And Raw materials

Raw materials

Ammonium phosphate dibasic Trimethyl-pyrazine 2,3-Pentanedione

Preparation Products

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2-Ethyl-3,5-dimethylpyrazine Suppliers

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View Lastest Price from 2-Ethyl-3,5-dimethylpyrazine manufacturers

Shaanxi Dideu New Materials Co. Ltd

Product: 2-Ethyl-3,5-dimethylpyrazine 27043-05-6
Price: US $0.00/kg
Min. Order: 1kg
Purity: 98%
Supply Ability: 1000kgs
Release date: 2025-11-17

ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD

Product: 2-Ethyl-3,5-dimethylpyrazine 27043-05-6
Price: US $2.20-8.80/kg
Min. Order: 1kg
Purity: 99%min
Supply Ability: 1000kg
Release date: 2025-09-08

Hebei Zhuanglai Chemical Trading Co Ltd

Product: 2-Ethyl-3,5-dimethylpyrazine 27043-05-6
Price: US $60.00/kg
Min. Order: 1kg
Purity: 99%
Supply Ability: 20 tons
Release date: 2024-11-20

27043-05-6, 2-Ethyl-3,5-dimethylpyrazineRelated Search:

2,5-Dimethyl pyrazine Ethyl formate Pyrazinamide Glipizide Ethyl acrylate Ethyl cellulose Ethylpyrazine Sulfachoropyrazine sodium Ethylbenzene Ethyl acetate 2-Methylpyrazine 3-Ethyl-2,5-diMethylpyrazine 3,5-DIMETHYL-2-ETHYLPYRAZINE 2-Ethyl-3,5-dimethylpyrazine 2,3-Dimethyl-5-ethylpyrazine Pyrazine Diethyl ether 3,5-DIMETHYL-2-ETHYLPYRAZINE-D6

FEMA NUMBER 3149

FEMA 3149

DIMETHYLETHYLPYRAZINE

2,6-DIMETHYL-3-ETHYLPYRAZINE

2-ETHYL-3,5(6)-DIMETHYLPYRAZINE

2-ETHYL-3,5-DIMETHYLPYRAZINE

2-ETHYL-3,5-DIMETHYLPYRAZINE AND 2-ETHYL-3,6-DIMETHYLPYRAZINE

2-ETHYL-3,5(OR 6)-DIMETHYLPYRAZINE

2-ETHYL-3,5(3,6)-DIMETHYLPYRAZINE MIXTURE

3-ETHYL-2,5-DIMETHYLPYRAZINE AND 3-ETHYL-2,6-DIMETHYLPYRAZINE

3-ethyl-3,6-dimethyl-2H-pyrazine

2-ethyl-3,?-dimethyl-pyrazin

2-Ethyl-3，5(or 6)-dimethyrlpyrazine

2-Ethyl-3,(5/6)-dimethylpyrazine, Isomer mixture

2-Ethyl-3,5-diMethyl

2-Ethyl-3,5(6)-dimethylpyrazine, mixture of isomers

3-ethyl-3,6-dimethyl-Pyrazine

2-ethyl-3,-dimethylpyrazine

2-Ethyl-3,5(6)-dimethylpyrazine, 99.5+%

Pyrazine, 2-ethyl-3,?-dimethyl-

2-Ethyl-3,5-dimethylpyrazine (contains 2-Ethyl-3,6-dimethylpyrazine)

2-ethyl-3-dimethylpyrazine USP/EP/BP

discount 2-Ethyl-3,5-dimethylpyrazine

27043-05-6

C8N12N2

C8H12N2