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ChemicalBook--->CAS DataBase List--->18138-04-0

18138-04-0

18138-04-0 Structure

18138-04-0 Structure
IdentificationMore
[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 PropertiesBack 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
[biological source]

synthetic
[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 DataBack 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
Raw materials And Preparation ProductsBack Directory
[Raw materials]

1,2-Diaminopropane-->3,4-Hexanedione
[Preparation Products]

Pyrazine
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

2,3-Diethyl-5-methylpyrazine(18138-04-0).msds
Hazard InformationBack 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.
Spectrum DetailBack Directory
[Spectrum Detail]

2,3-Diethyl-5-methylpyrazine(18138-04-0)MS
2,3-Diethyl-5-methylpyrazine(18138-04-0)1HNMR
2,3-Diethyl-5-methylpyrazine(18138-04-0)13CNMR
2,3-Diethyl-5-methylpyrazine(18138-04-0)IR1
2,3-Diethyl-5-methylpyrazine(18138-04-0)Raman
Well-known Reagent Company Product InformationBack Directory
[Acros Organics]

2,3-Diethyl-5-methylpyrazine, 99%(18138-04-0)
[Alfa Aesar]

2,3-Diethyl-5-methylpyrazine, 98+%(18138-04-0)
[Sigma Aldrich]

18138-04-0(sigmaaldrich)
[TCI AMERICA]

2,3-Diethyl-5-methylpyrazine,>97.0%(GC)(18138-04-0)
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