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Product Name: |
2,3,5-trimetylpyrazin |
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CAS: |
14667-55-1 |
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MF: |
C7H10N2 |
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MW: |
122.17 |
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EINECS: |
238-712-0 |
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Mol File: |
14667-55-1.mol |
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Melting point |
156 °C |
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Kokepunkt |
171-172 ° C (opplyst) |
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density |
0,979 g / ml ved 25 ° C (lys) |
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FEMA |
3244 | 2,3,5-TRIMETHYLPYRAZINE |
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refractive index |
n20/D 1.5040(lit.) |
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Fp |
130 ° F |
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storage temp. |
Flammables area |
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pka |
2,69 ± 0,10 (Forutsagt) |
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skjema |
neat |
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Spesifikk tyngdekraft |
0.979 |
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Lukt |
roasted odor, reminiscent of coffee and cocoa |
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JECFA Number |
774 |
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BRN |
2423 |
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InChIKey |
IAEGWXHKWJGQAZ-UHFFFAOYSA-N |
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CAS DataBase Referanse |
14667-55-1(CAS DataBase Reference) |
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NIST Chemistry Reference |
Pyrazine, trimethyl-(14667-55-1) |
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EPA Substance Registry System |
Trimethylpyrazine (14667-55-1) |
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Farekoder |
Xn |
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Risikoverklæringer |
10-22-36 / 37/38 |
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Sikkerhetserklæringer |
16-26-36 / 37/39 |
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RIDADR |
UN 1993 3/PG 3 |
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WGK Tyskland |
3 |
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RTECS |
UQ3907000 |
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TSCA |
Ja |
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HazardClass |
3 |
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PackingGroup |
III |
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HS kode |
29339900 |
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Kjemiske egenskaper |
CLEAR YELLOW LIQUID |
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Kjemiske egenskaper |
2,3,5-Trimethylpyrazine has a baked potato or roasted nut aroma. |
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Preparation |
From 2,5-dimethylpyrazine by ring alkylation with MeLi; by condensing propylenediamine with 2,3-butanedione. |
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Aroma threshold values |
Påvisning: 400 ppb til 9 ppm (9 ppm i vann) |
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Taste threshold values |
Taste characteristics at 80 ppm: raw, musty, nutty and potato. |
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Safety Profile |
Moderat giftig ved inntak. Brennbar væske. Avgir giftig røyk av NOx ved oppvarming til nedbrytning. |
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Preparation Products |
2-Etyl-3,5-dimetylpyrazin |
