| 2-ISOBUTYL-3-METHYLPYRAZINE Basic information |
| Product Name: | 2-ISOBUTYL-3-METHYLPYRAZINE |
| Synonyms: | FEMA NUMBER 3133;FEMA 3133;2-ISOBUTYL-3-METHYLPYRAZINE;2-METHYL-3-ISOBUTYLPYRAZINE;2-methyl-3-(2-methylpropyl)-pyrazin;2-methyl-3-(2-methylpropyl)-Pyrazine;3-[[4-(3-formylphenoxy)-3,4-dimethyl-1-cyclohexa-1,5-dienyl]oxy]benzaldehyde;2-Isobutyl-3-isopropyl pyrazine |
| CAS: | 13925-06-9 |
| MF: | C9H14N2 |
| MW: | 150.22 |
| EINECS: | 237-693-6 |
| Product Categories: | Mono- & Polyalkylpyrazines;Pyrazines;Alphabetical Listings;Flavors and Fragrances;I-L |
| Mol File: | 13925-06-9.mol |
| 2-ISOBUTYL-3-METHYLPYRAZINE Chemical Properties |
| Melting point | 74 °C |
| Boiling point | 199 °C(lit.) |
| density | 0.942 g/mL at 25 °C(lit.) |
| refractive index | n |
| FEMA | 3133 | 2-ISOBUTYL-3-METHYLPYRAZINE |
| Fp | 180 °F |
| storage temp. | Sealed in dry,Room Temperature |
| form | clear liquid |
| pka | 1.88±0.10(Predicted) |
| color | Colorless to Orange to Green |
| JECFA Number | 773 |
| CAS DataBase Reference | 13925-06-9(CAS DataBase Reference) |
| EPA Substance Registry System | Pyrazine, 2-methyl-3-(2-methylpropyl)- (13925-06-9) |
| Safety Information |
| Safety Statements | 24/25 |
| WGK Germany | 3 |
| HS Code | 29349990 |
| MSDS Information |
| Provider | Language |
|---|---|
| SigmaAldrich | English |
| 2-ISOBUTYL-3-METHYLPYRAZINE Usage And Synthesis |
| Description | Synthesis: By condensation of ethylenediamine with 5-methyl- 2,3-hexanedione. |
| Chemical Properties | 2-Isobutyl-3-methylpyrazine has extremely powerful herbaceous green earthy notes. Diluted water solutions exhibit a characteristic odor of green bell peppers |
| Chemical Properties | Liquid |
| Occurrence | Reported present in coffee, potato products, cooked beef, fried cured pork and roasted peanuts. |
| Preparation | By condensation of ethylenediamine with 5-methyl-2,3-hexandione |
| Aroma threshold values | Detection: 13 to 35 ppb |
| Taste threshold values | Taste characteristics at 35 ppm: herbaceous, green, earthy notes. |
| 2-ISOBUTYL-3-METHYLPYRAZINE Preparation Products And Raw materials |
| Preparation Products | 1,3-OCTADIENE-->TRANS-2-HEPTEN-1-OL-->1-Octen-3-ol-->2,5-Dimethyl pyrazine |
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