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
- biological source
- synthetic
- 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
Preparation Products
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2,3-Diethyl-5-methylpyrazine Suppliers
- Tel
- --
- Fax
- --
- Country
- Singapore
- ProdList
- 246
- Advantage
- 58
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View Lastest Price from 2,3-Diethyl-5-methylpyrazine manufacturers
Hebei Zhuanglai Chemical Trading Co Ltd
- Product
- 2,3-Diethyl-5-methylpyrazine 18138-04-0
- Price
- US $10.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 20 ton
- Release date
- 2024-12-06
Hebei Weibang Biotechnology Co., Ltd
- Product
- 2,3-Diethyl-5-methylpyrazine 18138-04-0
- Price
- US $10.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 100 mt
- Release date
- 2024-11-06
Hebei Chuanghai 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
- 2024-08-20
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