2,3-Diethyl-5-methylpyrazine
Synonym(s):hazelnut pyrazine
- CAS NO.:18138-04-0
- Empirical Formula: C9H14N2
- Molecular Weight: 150.22
- MDL number: MFCD00009635
- EINECS: 242-024-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-11-06 18:33:45
What is 2,3-Diethyl-5-methylpyrazine?
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.
The Uses of 2,3-Diethyl-5-methylpyrazine
2,3-Diethyl-5-methylpyrazine is a volatile compound found in food such as almonds and swiss cheese.
What are the applications of Application
2,3-Diethyl-5-methylpyrazine is a potent odorant in coffee
Preparation
By condensation of 3,4-hexanedione with propylene diamine.
Definition
ChEBI: 2,3-Diethyl-5-methylpyrazine is a member of pyrazines.
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.
Properties of 2,3-Diethyl-5-methylpyrazine
Boiling point: | 95 °C (20 mmHg) |
Density | 0.949 g/mL at 25 °C (lit.) |
FEMA | 3336 | 2,3-DIETHYL-5-METHYLPYRAZINE |
refractive index | n |
Flash point: | 176 °F |
storage temp. | 2-8°C |
solubility | Chloroform, Methanol |
form | neat |
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 |
Water Solubility | SLIGHTLY SOLUBLE |
JECFA Number | 777 |
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) |
Safety information for 2,3-Diethyl-5-methylpyrazine
Signal word | Warning |
Pictogram(s) |
Exclamation Mark Irritant GHS07 |
Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. |
Computed Descriptors for 2,3-Diethyl-5-methylpyrazine
New Products
4-AMINO-TETRAHYDRO-PYRAN-4-CARBOXYLIC ACID HCL 4-(Dimethylamino)tetrahydro-2H-pyran-4-carbonitrile 4-Aminotetrahydropyran-4-carbonitrile Hydrochloride (R)-3-Aminobutanenitrile Hydrochloride 3-((Dimethylamino)methyl)-5-methylhexan-2-one oxalate 1,4-Dioxa-8-azaspiro[4.5]decane 5-Bromo-2-nitropyridine Nimesulide BP Aceclofenac IP/BP/EP Diclofenac Sodium IP/BP/EP/USP Mefenamic Acid IP/BP/EP/USP Ornidazole IP Diclofenac Potassium THOMAIND PAPER PH 2.0 TO 4.5 1 BOX BUFFER CAPSULE PH 9.2 - 10 CAP SODIUM CHLORIDE 0.1N CVS ALLOXAN MONOHYDRATE 98% PLATINUM 0.5% ON 3 MM ALUMINA PELLETS (TYPE 73) LITHIUM AAS SOLUTION 2-Bromo-1-(bromomethyl)-3-chloro-5-nitrobenzene 2-Bromo-3-nitroaniline N-(3-Hydroxypropyl)-N-methylacetamide 3-Bromo-6-chloropyridazine 4-ethyl-3-nitrobenzoic acidRelated products of tetrahydrofuran
You may like
-
2,3-Diethyl-5-methylpyrazine CAS 18138-04-0View Details
18138-04-0 -
2,3-Diethyl-5-methylpyrazine CAS 18138-04-0View Details
18138-04-0 -
1823368-42-8 98%View Details
1823368-42-8 -
2-(3-(tert-butyl)phenoxy)-2-methylpropanoic acid 1307449-08-6 98%View Details
1307449-08-6 -
Ethyl 3-(furan-2-yl)-3-hydroxypropanoate 25408-95-1 98%View Details
25408-95-1 -
2-Chloro-5-fluoro-1-methoxy-3-methylbenzene 98%View Details
1805639-70-6 -
1784294-80-9 98%View Details
1784294-80-9 -
Lithium ClavulanateView Details
61177-44-4