ChemicalBook > CAS DataBase List > 2,3-Diethyl-5-methylpyrazine

2,3-Diethyl-5-methylpyrazine

Product Name
2,3-Diethyl-5-methylpyrazine
CAS No.
18138-04-0
Chemical Name
2,3-Diethyl-5-methylpyrazine
Synonyms
FEMA 3336;FEMA NUMBER 3336;hazelnut pyrazine;2,3-Diethyl-5-Methyl;Diethyl-5-Methylpyraz;LABOTEST-BB LT00453041;2.3.5.6-four Methylpyrazine;2-METHYL-5,6-DIETHYLPYRAZINE;2,3-DIETHYL-6-METHYLPYRAZINE;2,3-DIETHYL-5-METHYLPYRAZINE
CBNumber
CB9375970
Molecular Formula
C9H14N2
Formula Weight
150.22
MOL File
18138-04-0.mol
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2,3-Diethyl-5-methylpyrazine Property

Boiling point:
95 °C (20 mmHg)
Density 
0.949 g/mL at 25 °C (lit.)
refractive index 
n20/D 1.498(lit.)
FEMA 
3336 | 2,3-DIETHYL-5-METHYLPYRAZINE
Flash point:
176 °F
storage temp. 
2-8°C
solubility 
Chloroform, Methanol
pka
2?+-.0.10(Predicted)
color 
Clear Colourless
Specific Gravity
0.950.949
Odor
at 0.10 % in dipropylene glycol. musty nut skin earthy roasted hazelnut toasted potato dusty foliage vegetable
Odor Type
musty
Water Solubility 
SLIGHTLY SOLUBLE
JECFA Number
777
LogP
2.16
CAS DataBase Reference
18138-04-0(CAS DataBase Reference)
NIST Chemistry Reference
Pyrazine, 2,3-diethyl-5-methyl-(18138-04-0)
EPA Substance Registry System
Pyrazine, 2,3-diethyl-5-methyl- (18138-04-0)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36/37/39
RIDADR 
NA 1993 / PGIII
WGK Germany 
3
TSCA 
Yes
HazardClass 
3
PackingGroup 
III
HS Code 
29339900
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Precautionary statements

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

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

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

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

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
W333603
Product name
2,3-Diethyl-5-methylpyrazine
Purity
99%, FG
Packaging
100g
Price
$175
Updated
2024/03/01
Sigma-Aldrich
Product number
W333603
Product name
2,3-Diethyl-5-methylpyrazine
Purity
99%, FG
Packaging
1kg
Price
$1260
Updated
2024/03/01
Sigma-Aldrich
Product number
293814
Product name
2,3-Diethyl-5-methylpyrazine
Purity
99%
Packaging
5g
Price
$19.98
Updated
2024/03/01
TCI Chemical
Product number
D1714
Product name
2,3-Diethyl-5-methylpyrazine
Purity
>97.0%(GC)
Packaging
5mL
Price
$68
Updated
2024/03/01
TCI Chemical
Product number
D1714
Product name
2,3-Diethyl-5-methylpyrazine
Purity
>97.0%(GC)
Packaging
25mL
Price
$181
Updated
2024/03/01
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2,3-Diethyl-5-methylpyrazine Chemical Properties,Usage,Production

Chemical Properties

CLEAR LIGHT YELLOW LIQUID

Chemical Properties

2,3-Diethyl-5-methylpyrazine has a nutty, roasted, vegetable aroma.

Occurrence

Reported to be present in coffee, filberts, potato products, Parmesan cheese, chicken, beef, pork, cocoa, peanuts, popcorn, sesame seed and corn tortillas.

Uses

2,3-Diethyl-5-methylpyrazine is a volatile compound found in food such as almonds and swiss cheese.

Definition

ChEBI: 2,3-Diethyl-5-methylpyrazine is a member of pyrazines.

Preparation

By condensation of 3,4-hexanedione with propylene diamine.

Aroma threshold values

Detection: 0.09 to 1 ppb

Taste threshold values

Taste characteristics at 2.5 ppm: musty, toasted; nutty, potato, cocoa, earthy and dirty.

General Description

2,3-Diethyl-5-methylpyrazine has been identified as a potent odorant in coffee sample and has been evaluated by gas chromatography-olfactometry of decreasing headspace samples.

2,3-Diethyl-5-methylpyrazine Preparation Products And Raw materials

Raw materials

1,2-Diaminopropane 3,4-Hexanedione

Preparation Products

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2,3-Diethyl-5-methylpyrazine Suppliers

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View Lastest Price from 2,3-Diethyl-5-methylpyrazine manufacturers

Henan Fengda Chemical Co., Ltd
Product
2,3-Diethyl-5-methylpyrazine 18138-04-0
Price
US $36.00-1.20/kg
Min. Order
1kg
Purity
99%
Supply Ability
g-kg-tons, free sample is available
Release date
2024-04-29
Hebei Guanlang Biotechnology Co,.LTD
Product
2 3-Diethyl-5-Methylpyrazine 18138-04-0
Price
US $5.00-2.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
10000kg
Release date
2023-03-20
Hebei Guanlang Biotechnology Co., Ltd.
Product
2,3-Diethyl-5-methylpyrazine 18138-04-0
Price
US $10.00/PCS
Min. Order
1KG
Purity
99%
Supply Ability
100 mt
Release date
2021-03-11

18138-04-0, 2,3-Diethyl-5-methylpyrazineRelated Search:

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  • 2,3-diethyl-5-methyl-pyrazin
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  • LABOTEST-BB LT00453041
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  • FEMA NUMBER 3336
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  • diethylmethylpyrazine,2,3-diethyl-5-methylpyrazine
  • 2.3-Dimethyl-5-Methyl Pyrazine
  • 2,3-Diethyl-5-methylpyrazine,99%
  • 2,3-Diethyl-5-Methyl
  • 2.3.5.6-four Methylpyrazine
  • Diethyl-5-Methylpyraz
  • 2,3-Diethyl-5-methylpyrazine&gt
  • 2,3-Diethyl-5-methylpyrazine USP/EP/BP
  • hazelnut pyrazine
  • 2,3-Diethyl-5-methylpyrazine with high purity CAS 18138-04-0
  • 2.3-Dimethy-5-methyl pryazine
  • Food additive in Chocolate 2,3-Diethyl-5-methylpyrazine 18138-04-0
  • 18138-04-0
  • 18138-04
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