Trimethyl-pyrazine
- CAS No.
- 14667-55-1
- Chemical Name:
- Trimethyl-pyrazine
- Synonyms
- Pyrazine, trimethyl-;2,3,5-TRIMETHYLPYRAZINE;TRIMETHYLPYRAZINE;2,3,5-TriMethylpyrazine 99%;FEMA 3244;FEMA NUMBER 3244;Compound Fr14500;trimethyl-pyrazin;2.3.5-Methyl pyrazine;2,3,6-TRIMETHYLPYRAZINE
- CBNumber:
- CB3105641
- Molecular Formula:
- C7H10N2
- Molecular Weight:
- 122.17
- MDL Number:
- MFCD00006145
- MOL File:
- 14667-55-1.mol
- MSDS File:
- SDS
| Melting point | 156 °C |
|---|---|
| Boiling point | 171-172 °C (lit.) |
| Density | 0.979 g/mL at 25 °C (lit.) |
| FEMA | 3244 | 2,3,5-TRIMETHYLPYRAZINE |
| refractive index |
n |
| Flash point | 130 °F |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | Chloroform (Slightly) |
| pka | 2.69±0.10(Predicted) |
| Specific Gravity | 0.979 |
| color | Colorless to Light yellow to Light orange |
| Odor | roasted odor, reminiscent of coffee and cocoa |
| Odor Type | nutty |
| JECFA Number | 774 |
| BRN | 2423 |
| InChIKey | IAEGWXHKWJGQAZ-UHFFFAOYSA-N |
| LogP | 1.10 |
| CAS DataBase Reference | 14667-55-1(CAS DataBase Reference) |
| Substances Added to Food (formerly EAFUS) | 2,3,5-TRIMETHYLPYRAZINE |
| EWG's Food Scores | 1 |
| FDA UNII | Q8PR0W8TIT |
| NIST Chemistry Reference | Pyrazine, trimethyl-(14667-55-1) |
| EPA Substance Registry System | Trimethylpyrazine (14667-55-1) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS02,GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H226-H302-H315-H319-H335 | |||||||||
| Precautionary statements | P210-P301+P312+P330-P302+P352-P305+P351+P338 | |||||||||
| Hazard Codes | Xn | |||||||||
| Risk Statements | 10-22-36/37/38 | |||||||||
| Safety Statements | 16-26-36/37/39 | |||||||||
| RIDADR | UN 1993 3/PG 3 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | UQ3907000 | |||||||||
| TSCA | Yes | |||||||||
| HazardClass | 3 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29339900 | |||||||||
| Toxicity | rat,LD50,oral,806mg/kg (806mg/kg),Drug and Chemical Toxicology. Vol. 3, Pg. 249, 1980. | |||||||||
| NFPA 704 |
|
Trimethyl-pyrazine price More Price(28)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | W324426 | 2,3,5-Trimethylpyrazine natural, ≥95%, FG | 14667-55-1 | 100g | $490 | 2024-03-01 | Buy |
| Sigma-Aldrich | W324426 | 2,3,5-Trimethylpyrazine natural, ≥95%, FG | 14667-55-1 | 1kg | $4530 | 2024-03-01 | Buy |
| Sigma-Aldrich | W324418 | 2,3,5-Trimethylpyrazine ≥99%, FCC, FG | 14667-55-1 | 100g | $78.2 | 2024-03-01 | Buy |
| Sigma-Aldrich | W324418 | 2,3,5-Trimethylpyrazine ≥99%, FCC, FG | 14667-55-1 | 1kg | $316 | 2024-03-01 | Buy |
| Sigma-Aldrich | W324418 | 2,3,5-Trimethylpyrazine ≥99%, FCC, FG | 14667-55-1 | 5kg | $1110 | 2024-03-01 | Buy |
Trimethyl-pyrazine Chemical Properties,Uses,Production
Chemical Properties
2,3,5-Trimethylpyrazine has a baked potato or roasted nut aroma.
Chemical Properties
CLEAR YELLOW LIQUID
Occurrence
Reported present in bakery products, roasted barley, cocoa products, coffee, dairy products, meat, peanuts, filberts, pecans, popcorn, potato products, rum and whiskey, soy products, raw asparagus, baked potato, wheaten bread, crispbread, Swiss cheese, coffee, black tea, green tea, roasted barley, roasted filbert, heated beef, roasted peanut, soybean, raw beans, coriander seed, scallop, guava, kohlrabi, bell pepper, blue, Swiss and Gruyere cheese, boiled egg, fatty fish, beer, sherry, barley, peanut, oat products, coconut, beans, mushroom, trassi, almond, macadamia nut, sesame seed, coriander seed, rice, licorice, sweet corn, malt, peated malt, wort, krill, fermented shrimp, crab, okra, crayfish, clam, scallop and squid.
Uses
2,3,5-Trimethylpyrazine can be used as a flavor ingredient in food industries.
Uses
Trimethylpyrazine is a key aroma compound of dark chocolates differing in organoleptic properties.
Definition
ChEBI: Trimethylpyrazine is a member of the class of pyrazines that is pyrazine in which three hydrogens at positions 2, 3 and 5 have been replaced by methyl groups. It has a role as a plant metabolite, a flavouring agent, a bacterial metabolite, an animal metabolite and a pheromone.
Preparation
From 2,5-dimethylpyrazine by ring alkylation with MeLi; by condensing propylenediamine with 2,3-butanedione.
Aroma threshold values
Detection: 400 ppb to 9 ppm (9 ppm in water)
Taste threshold values
Taste characteristics at 80 ppm: raw, musty, nutty and potato.
General Description
2,3,5-Trimethylpyrazine is present in brown cheese.
Safety Profile
Moderately toxic by ingestion. Combustible liquid. When heated to decomposition emits toxic fumes of NOx.
Trimethyl-pyrazine Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Mojin Biotechnology Co., Ltd | +8613288715578 | sales@hbmojin.com | China | 12456 | 58 |
| Hebei Yanxi Chemical Co., Ltd. | +8617531190177 | peter@yan-xi.com | China | 5993 | 58 |
| Ouhuang Engineering Materials (Hubei) Co., Ltd | +8617702722807 | admin@hbouhuang.com | China | 2880 | 58 |
| Capot Chemical Co.,Ltd. | 571-85586718 +8613336195806 | sales@capotchem.com | China | 29797 | 60 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21691 | 55 |
| Hangzhou FandaChem Co.,Ltd. | 008657128800458; +8615858145714 | fandachem@gmail.com | China | 9348 | 55 |
| career henan chemical co | +86-0371-86658258 | sales@coreychem.com | China | 29914 | 58 |
| NINGBO INNO PHARMCHEM CO., LTD. | 13867897135 | sales@nbinno.com | CHINA | 925 | 58 |
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 | linda@hubeijusheng.com | CHINA | 28180 | 58 |
| Jinan Finer Chemical Co., Ltd | +86-531-88989536 +86-15508631887 | sales@finerchem.com | China | 2968 | 58 |
View Lastest Price from Trimethyl-pyrazine manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2024-04-27 | Trimethyl-pyrazine
14667-55-1
|
US $20.00 / kg | 1kg | 99.9% | 200000kg | Ouhuang Engineering Materials (Hubei) Co., Ltd | |
 |
2024-02-24 | Trimethyl-pyrazine
14667-55-1
|
US $25.00-15.00 / kg | 1kg | 99% | 10 tons | Hebei Yanxi Chemical Co., Ltd. | |
 |
2023-06-30 | Trimethyl-pyrazine
14667-55-1
|
US $0.00 / KG | 1KG | 99% | 50000KG/month | Hebei Mojin Biotechnology Co., Ltd |
-
- Trimethyl-pyrazine
14667-55-1
- US $20.00 / kg
- 99.9%
- Ouhuang Engineering Materials (Hubei) Co., Ltd
-
- Trimethyl-pyrazine
14667-55-1
- US $25.00-15.00 / kg
- 99%
- Hebei Yanxi Chemical Co., Ltd.
-
- Trimethyl-pyrazine
14667-55-1
- US $0.00 / KG
- 99%
- Hebei Mojin Biotechnology Co., Ltd
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