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Product Name: |
2,6-Dimethylpyrazine |
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Synonyms: |
HSC-T6 Cell;2,6-dimethyl-pyrazin;2,6-dimethylpyrazine,balance2,5-isomer;3,5-Dimethylpyrazine;FEMA NUMBER 3273;FEMA 3273;2,6-DIMETHYLPYRAZINE;2,6-DIMETHYL PARADIAZINE |
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CAS: |
108-50-9 |
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MF: |
C6H8N2 |
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MW: |
108.14 |
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EINECS: |
203-589-4 |
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Mol File: |
108-50-9.mol |
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Melting point |
35-40 °C(lit.) |
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Boiling point |
154 °C(lit.) |
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density |
0.965(50.0000℃) |
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FEMA |
3273 | 2,6-DIMETHYLPYRAZINE |
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refractive index |
1.5000 |
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Fp |
127 °F |
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storage temp. |
Flammables area |
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pka |
2.49±0.10(Predicted) |
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form |
Low Melting Crystalline Solid |
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color |
Pale yellow |
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PH |
7 (H2O, 20℃) |
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Water Solubility |
Soluble in water. |
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JECFA Number |
767 |
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BRN |
1726 |
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CAS DataBase Reference |
108-50-9(CAS DataBase Reference) |
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NIST Chemistry Reference |
Pyrazine, 2,6-dimethyl-(108-50-9) |
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EPA Substance Registry System |
Pyrazine, 2,6-dimethyl- (108-50-9) |
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Hazard Codes |
Xn,F |
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Risk Statements |
10-22-37/38-41-11 |
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Safety Statements |
16-26-39 |
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RIDADR |
UN 1325 4.1/PG 2 |
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WGK Germany |
3 |
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RTECS |
UQ2975000 |
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TSCA |
Yes |
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HazardClass |
4.1 |
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PackingGroup |
III |
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HS Code |
29339990 |
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Chemical Properties |
PALE YELLOW LOW MELTING CRYSTALLINE SOLID |
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Chemical Properties |
2,6-Dimethylpyrazine has a nutty, coffee-like odor. |
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Preparation |
By condensation of 1,2-diaminopropane, followed by column chromatography to separate the 2,6-methylpyrazine from the 2,5-dimethylpyrazine. |
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Aroma threshold values |
Detection: 400 to 1500 ppb. Aroma characteristics at 1.0%: musty, cocoa powdery, tobacco, dry leaf tea, earthy mushroom cap and potato-like, meaty, roasted peanut shell, and coffee. |
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Taste threshold values |
Taste characteristics at 5.0 ppm: musty and earthy, nutty peanut shell, cocoa powdery, earthy coffee, yeasty, woody, milk roasted peanut. |
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Preparation Products |
2,6-Dimethylpiperazine-->3,5-DIMETHYL-2-ETHYLPYRAZINE |
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Raw materials |
1,2-Diaminopropane-->2,5-Dimethyl pyrazine |
