| 2-Acetyl-3-methylpyrazine Basic information |
| Identification Description Regulatory Status Usage Natural occurrence |
| Product Name: | 2-Acetyl-3-methylpyrazine |
| Synonyms: | 1-(3-methylpyrazinyl)-Ethanone;1-(3-METHYLPYRAZIN-2-YL)ETHAN-1-ONE;1-(3-METHYL-PYRAZIN-2-YL)-ETHANONE;ACETYL METHYLPYRAZINE;1-[3-Methyl-2-pyrazinyl]-1-ethanone;3-Acetyl-2-methylpyrazine;Ethanone, 1-(3-methylpyrazinyl)-;Pyrazine, 2-acetyl-3-methyl |
| CAS: | 23787-80-6 |
| MF: | C7H8N2O |
| MW: | 136.15 |
| EINECS: | 245-889-8 |
| Product Categories: | A-B;Alphabetical Listings;Pyrazine;Mono- & Polyalkylpyrazines;Pyrazines;Flavors and Fragrances;pyrazine Flavor |
| Mol File: | 23787-80-6.mol |
| 2-Acetyl-3-methylpyrazine Chemical Properties |
| Boiling point | 90 °C20 mm Hg(lit.) |
| density | 1.114 g/mL at 25 °C(lit.) |
| refractive index | n |
| FEMA | 3964 | 2-ACETYL-3-METHYLPYRAZINE |
| Fp | 176 °F |
| storage temp. | Keep in dark place,Inert atmosphere,2-8°C |
| pka | 0.56±0.10(Predicted) |
| form | clear liquid |
| color | Light yellow to Yellow to Orange |
| Specific Gravity | 1.1100 |
| Sensitive | Light Sensitive |
| JECFA Number | 950 |
| BRN | 742438 |
| CAS DataBase Reference | 23787-80-6(CAS DataBase Reference) |
| NIST Chemistry Reference | 2-Acetyl-3-methylpyrazine(23787-80-6) |
| EPA Substance Registry System | Ethanone, 1-(3-methylpyrazinyl)- (23787-80-6) |
| Safety Information |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-36/37/39-24/25 |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 29339900 |
| MSDS Information |
| Provider | Language |
|---|---|
| 1-(3-Methylpyrazin-2-yl)ethan-1-one | English |
| SigmaAldrich | English |
| ACROS | English |
| ALFA | English |
| 2-Acetyl-3-methylpyrazine Usage And Synthesis |
| Identification | ▼ ▲ CAS.No.:
23787-80-6
FL.No.:
14.082
FEMA.No.:
3964
NAS.No.:
n/a
CoE.No.:
11296
EINECS.No.:
245-889-8
JECFA.No.:
950
|
| Description | 2-Acetyl-3-methylpyrazine has a roasted, nutty, grain-roasted potato odor. It is one of the most important pyrazines for hazelnut or filbert nut flavors. The flavor is less burnt than most of the pyrazines. |
| Regulatory Status | CoE: n/a FDA: n/a FDA (other): n/a JECFA: ADI: Acceptable. No safety concern at current levels of intake when used as a flavoring agent (2001). |
| Usage | Reported uses (ppm): (FEMA, 2001)
▼ ▲ Food Category
Usual
Max.
Alcoholic.beverages
0.3
3
Baked.goods
1.3
4.3
Breakfast.cereals
0.1
2
Chewing.gum
0.8
8
Confectioneries,.frostings
0.3
3
Egg.products
0.3
3
Fats/oils
0.3
3
Fish.products
0.1
3
Frozen.dairy
1
5
Fruit.ices
0.2
2
Gelatins/puddings
0.2
2
Gravies
0.3
3
Hard.candy
0.5
5
Instant.coffee/tea
0.1
1
Jams/jellies
0.5
5
Meat.products
1.3
5
Milk.products
0.3
3
Nonalcoholic.beverages
0.3
0.6
Seasonings/flavors
0.5
5
Snack.foods
0.5
5
Soups
1
2.5
|
| Natural occurrence | Reported present in cocoa, coffee, meat, clams, scallops, pork (cured, fried) and French fries. |
| Chemical Properties | CLEAR SLIGHTLY YELLOW LIQUID |
| Chemical Properties | 2-Acetyl-3-methylpyrazine has a roasted, nutty, grain-roasted potato odor. It is one of the most important pyrazines for hazelnut or filbert nut flavors. The flavor is less burnt than most of the pyrazines |
| Occurrence | Reported present in cocoa, coffee, meat, clams, scallops, pork (cured, fried) and French fries. |
| Aroma threshold values | Detection 0.02 (water) |
| 2-Acetyl-3-methylpyrazine Preparation Products And Raw materials |
| Raw materials | Chlorine-->Iodomethane-->Magnesium |
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