pyrazine, 2,3-diethyl-5-methyl-
2,3-Diethyl-5-methylpyrazine
CAS: 18138-04-0
Molecular Formula: C9H14N2
pyrazine, 2,3-diethyl-5-methyl- - Names and Identifiers
| Name | 2,3-Diethyl-5-methylpyrazine |
| Synonyms | FEMA 3336 FEMA NUMBER 3336 LABOTEST-BB LT00453041 5-Methyl-2,3-diethylpyrazine 2,3-DIETHYL-5-METHYLPYRAZINE 2,3-DIETHYL-6-METHYLPYRAZINE 2,3-diethyl-5-methyl-pyrazin 2,3-Diethyl-5-methylpyrazine 2,3-Diethyl-5-methyl pyrazine pyrazine, 2,3-diethyl-5-methyl- Pyrazine, 2,3-diethyl-5-methyl- |
| CAS | 18138-04-0 |
| EINECS | 242-024-6 |
| InChI | InChI=1/C9H14N2/c1-4-8-9(5-2)11-7(3)6-10-8/h6H,4-5H2,1-3H3 |
pyrazine, 2,3-diethyl-5-methyl- - Physico-chemical Properties
| Molecular Formula | C9H14N2 |
| Molar Mass | 150.22 |
| Density | 0.949 g/mL at 25 °C (lit.) |
| Boling Point | 95 °C (20 mmHg) |
| Flash Point | 176°F |
| JECFA Number | 777 |
| Water Solubility | SLIGHTLY SOLUBLE |
| Solubility | Chloroform, Methanol |
| Vapor Presure | 0.515mmHg at 25°C |
| Appearance | neat |
| Specific Gravity | 0.950.949 |
| Color | Clear Colourless |
| pKa | 2?+-.0.10(Predicted) |
| Storage Condition | 2-8°C |
| Refractive Index | n20/D 1.498(lit.) |
| Physical and Chemical Properties | Colorless to light yellow liquid, coffee and fruit aroma. Soluble in water but turbid, soluble in oils and organic solvents, miscible in ethanol at room temperature. Boiling point 203 °c. Natural products are found in coffee, hazelnuts, potato products, etc. |
| Use | For coffee, meat, candy, etc |
pyrazine, 2,3-diethyl-5-methyl- - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | 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 IDs | NA 1993 / PGIII |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 29339900 |
| Hazard Class | 3 |
| Packing Group | III |
pyrazine, 2,3-diethyl-5-methyl- - Upstream Downstream Industry
| Raw Materials | 3,4-Hexanedione |
pyrazine, 2,3-diethyl-5-methyl- - Reference Information
| FEMA | 3336 | 2,3-DIETHYL-5-METHYLPYRAZINE |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | 2, 3-diethyl-5-methylpyrazine is a volatile compound, found in foods such as almonds and Swiss cheese. GB 2760-96 is a food flavor that is allowed to be used. used for coffee, meat, candy, etc. |
| toxicity | GRAS(FEMA). |
| usage limit | FEMA(mg/kg): soft drinks 0.1; Cold drinks, jelly, pudding, meat products, meat soup, 0.2; Candy 0.5; Baked goods, cereal products, 1.0. |
| production method | consists of the condensation of 3, 4-hexanedione and 1, 2-diaminopropane. |
Last Update：2024-04-10 22:29:15
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Raw Materials for pyrazine, 2,3-diethyl-5-methyl-