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Liquid Flavors and Fragrances 109-08-0 2-MethylpyrazineCAS NO.: 109-08-0 CAS NO.109-08-0
- FOB Price: USD: 4.00-5.00 /Kilogram Get Latest Price
- Min.Order: 1 Kilogram
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- Available Specifications:
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- Product Details
Keywords
- 2-Methylpyrazine
- 3-Methylpyrazine
- 99.5% 2-Methylpyrazine
Quick Details
- ProName: Liquid Flavors and Fragrances 109-08-0...
- CasNo: 109-08-0
- Molecular Formula: C5H6N2
- Appearance: powder
- Application: Synthetic fragrances
- DeliveryTime: In stock
- PackAge: drum
- Port: China main port
- ProductionCapacity: 10000 Gram/Day
- Purity: 99%
- Storage: Room temperature
- Transportation: By sea or by air
- LimitNum: 1 Kilogram
- first class: 1-10
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Details
| Description | 2-Methylpyrazine has an odor threshold in water variously reported at 60,000 or 105,000 ppb. May be prepared from the corresponding carboxylic acid; by catalytic dehydrogenation of 2-methyl-piperazine; by condensation of methylglyoxal with ethylenediamine. |
| Chemical Properties | 2-Methylpyrazine has a nutty, cocoa, green, roasted, chocolate, meaty odor. |
| Chemical Properties | clear colorless to slightly yellow liquid |
| Occurrence | Reported found in bakery products, roasted barley, cocoa products, coffee, dairy products, cooked meats, peanuts, filberts, pecans, popcorn, potato chips, rum and whiskey, soy product, roasted filberts, roasted almonds, guava, papaya, asparagus, kohlrabi, baked and fried potato, milk, boiled egg, smoked fish, beer, coffee, sesame seed, rice, sukiyaki, buckwheat, sweet corn, corn tortillas, malt, wort, wild rice, okra, crayfish, clam, squid and maté. |
| Preparation | From corresponding carboxylic acid; by catalytic dehydrogenation of 2-methyl-piperazine; by condensation of methylglyoxal with ethylenediamine |
| Aroma threshold values | Detection: 60 ppb to 100 ppm |
| Taste threshold values | Taste characteristics at 75 ppm: nutty, brown, musty, roasted and astringent |
| Safety Profile | Moderately toxic by ingestion and intraperitoneal routes. Mutation data reported. Flammable liquid when exposed to heat, sparks, or flame. Can react with oxidizing materials. To fight fire, use water spray, foam, dry chemical, CO2. When heated to decomposition it emits highly toxic fumes of NOx. |
| Purification Methods | Purify it via the picrate and distil the free base. The picrate has m133-134o(from EtOH). [Wiggins & Wise J Chem Soc 4780 1956, Beilstein 23 III/IV 911, 23/5 V 386.] |