| Identification | More | [Name]
2,3-Diethyl-5-methylpyrazine | [CAS]
18138-04-0 | [Synonyms]
2,3-DIETHYL-5-METHYLPYRAZINE
2,3-DIETHYL-6-METHYLPYRAZINE
2-METHYL-5,6-DIETHYLPYRAZINE
FEMA 3336
FEMA NUMBER 3336
LABOTEST-BB LT00453041
2,3-diethyl-5-methyl-pyrazin
5-Methyl-2,3-diethylpyrazine
Pyrazine, 2,3-diethyl-5-methyl-
2 3-DIETHYL-5-METHYLPYRAZINE 97+%
2,3-Diethyl-5-methylpyrazine, 98+%
Pyrazine, 2,3-diethyl-5-methyl-(8CI,9CI)
diethylmethylpyrazine,2,3-diethyl-5-methylpyrazine | [EINECS(EC#)]
242-024-6 | [Molecular Formula]
C9H14N2 | [MDL Number]
MFCD00009635 | [Molecular Weight]
150.22 | [MOL File]
18138-04-0.mol |
| Chemical Properties | Back Directory | [Appearance]
CLEAR LIGHT YELLOW LIQUID | [Boiling point ]
95 °C (20 mmHg) | [density ]
0.949 g/mL at 25 °C(lit.)
| [FEMA ]
3336 | [refractive index ]
n20/D 1.498(lit.)
| [Fp ]
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 | [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]
18138-04-0(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection . | [RIDADR ]
NA 1993 / PGIII | [WGK Germany ]
3
| [TSCA ]
Yes | [HazardClass ]
3 | [PackingGroup ]
III | [HS Code ]
29339900 |
| Hazard Information | Back Directory | [Chemical Properties]
2,3-Diethyl-5-methylpyrazine has a nutty, roasted, vegetable aroma. | [Chemical Properties]
CLEAR LIGHT YELLOW LIQUID | [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. |
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