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2.3.5-Methyl pyrazine

2,3,5-trimethylpyrazine

CAS: 14667-55-1

Molecular Formula: C7H10N2

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2.3.5-Methyl pyrazine - Names and Identifiers

Name 2,3,5-trimethylpyrazine
Synonyms AI3-34442
CCRIS 2932
BRN 0002423
FEMA No. 3244
UNII-Q8PR0W8TIT
Trimethylpyrazine
Pyrazine, trimethyl-
2.3.5-Methyl pyrazine
2,3,5-Trimethyl prazine
2,3,5-trimethylpyrazine
2,3,6-Trimethylpyrazine
2,3,5-Trimethyl pyrazine
Pyrazine, 2,3,5-trimethyl-
Natural 2,3,5-Trimethylpyrazine
2,3,5-Trimethyl pyrazine (natural)
5-23-05-00419 (Beilstein Handbook Reference)
2,3,5-Trimethylpyrazine Trimethyl-pyrazine
CAS 14667-55-1
EINECS 238-712-0
InChI InChI=1/C7H10N2/c1-5-4-8-6(2)7(3)9-5/h4H,1-3H3
InChIKey IAEGWXHKWJGQAZ-UHFFFAOYSA-N

2.3.5-Methyl pyrazine - Physico-chemical Properties

Molecular FormulaC7H10N2
Molar Mass122.17
Density0.979 g/mL at 25 °C (lit.)
Melting Point156 °C
Boling Point171-172 °C (lit.)
Flash Point130°F
JECFA Number774
Vapor Presure1.72mmHg at 25°C
Appearanceneat
Specific Gravity0.979
ColorColorless to Light yellow to Light orange
Odorroasted odor, reminiscent of coffee and cocoa
BRN2423
pKa2.69±0.10(Predicted)
Storage ConditionInert atmosphere,Room Temperature
Refractive Indexn20/D 1.5040(lit.)
Physical and Chemical Properties
density 0.97
boiling point 171-172°C
refractive index 1.503-1.507
flash point 54°C
UseFor cocoa, coffee, fried peanuts and other baked food flavor

2.3.5-Methyl pyrazine - Risk and Safety

Hazard SymbolsXn - Harmful
Harmful
Risk CodesR10 - Flammable
R22 - Harmful if swallowed
R36/37/38 - Irritating to eyes, respiratory system and skin.
Safety DescriptionS16 - Keep away from sources of ignition.
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.
UN IDsUN 1993 3/PG 3
WGK Germany3
RTECSUQ3907000
TSCAYes
HS Code29339900
Hazard Class3
Packing GroupIII

2.3.5-Methyl pyrazine - Reference Information

FEMA3244 | 2,3,5-TRIMETHYLPYRAZINE
NIST chemical information information provided by: webbook.nist.gov (external link)
EPA chemical substance information information provided by: ofmpeb.epa.gov (external link)
trait colorless to light yellow transparent liquid
Use 235 trimethylpyrazine as baked goods, cheese, meat, tobacco.
GB 2760-1996 provides for temporary use of flavorants. Mainly used in the preparation of cocoa, chocolate and fried nuts and other types of flavor.
GB 2760-1996 provides for temporary use of flavorants. Mainly used in the preparation of cocoa, chocolate and fried nuts and other types of flavor. For cocoa, coffee, fried peanuts and other baked food flavor
content analysis gas chromatography analysis was performed on a polar column in GT-10-4.
toxicity GRAS(FEMA). LD50 806mg/kg (rat, oral).
usage limit FEMA(mg/kg): Soft drink 5.0~10; Candy 5.0~10; baked Food 5.0~10; Cereal 2.0; Condiment 2.0; Meat and meat sauce 2.0; Dairy products 1.0; Soup 2.0.
Last Update：2024-04-10 22:29:15
2.3.5-Methyl pyrazine
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2.3.5-Methyl pyrazine
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