2,5-Dimethyl pyrazine
![2,5-Dimethyl pyrazine Structure](CAS/GIF/123-32-0.gif)
- CAS No.
- 123-32-0
- Chemical Name:
- 2,5-Dimethyl pyrazine
- Synonyms
- 2,5-DIMETHYLPYRAZINE;2,5-Dimethylprazin;Pyrazine,2,5-dimethyl-;2,5-Dimethyl;Structural formula;2,5-Dimethylpiazine;2,5-dimethyl-pyrazin;KETINE;tomfor;GLYCOLINE
- CBNumber:
- CB0159355
- Molecular Formula:
- C6H8N2
- Molecular Weight:
- 108.14
- MOL File:
- 123-32-0.mol
- MSDS File:
- SDS
- Modify Date:
- 2024/8/21 22:41:43
Melting point | 15°C |
---|---|
Boiling point | 155 °C (lit.) |
Density | 0.99 g/mL at 25 °C (lit.) |
FEMA | 3272 | 2,5-DIMETHYLPYRAZINE |
refractive index |
n |
Flash point | 147 °F |
storage temp. | Inert atmosphere,Room Temperature |
solubility | Chloroform (Slightly), DMSO (Slightly), Methanol (Slightly) |
form | Liquid |
pka | 2.21±0.10(Predicted) |
color | Clear colorless to pale yellow |
Specific Gravity | 0.990 |
PH | 7 (H2O) |
Odor | at 0.10 % in dipropylene glycol. nutty roasted baked potato |
Odor Type | chocolate |
Sensitive | Hygroscopic |
JECFA Number | 766 |
BRN | 107052 |
Dielectric constant | 2.4399999999999999 |
LogP | 0.64 |
CAS DataBase Reference | 123-32-0(CAS DataBase Reference) |
NIST Chemistry Reference | Pyrazine, 2,5-dimethyl-(123-32-0) |
EPA Substance Registry System | Pyrazine, 2,5-dimethyl- (123-32-0) |
SAFETY
Risk and Safety Statements
Symbol(GHS) | ![]() GHS07 |
|||||||||
---|---|---|---|---|---|---|---|---|---|---|
Signal word | Warning | |||||||||
Hazard statements | H302 | |||||||||
Precautionary statements | P301+P312+P330 | |||||||||
Hazard Codes | Xn,Xi | |||||||||
Risk Statements | 22-36/37/38-R22 | |||||||||
Safety Statements | 26-36 | |||||||||
RIDADR | NA 1993 / PGIII | |||||||||
WGK Germany | 3 | |||||||||
RTECS | UQ2800000 | |||||||||
Hazard Note | Irritant | |||||||||
TSCA | Yes | |||||||||
HS Code | 29339990 | |||||||||
NFPA 704 |
|
2,5-Dimethyl pyrazine price More Price(11)
Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
---|---|---|---|---|---|---|---|
Sigma-Aldrich(India) | W327204 | 2,5-Dimethylpyrazine ≥98%, FG | 123-32-0 | 1SAMPLE-K | ₹5141.88 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | W327204 | 2,5-Dimethylpyrazine ≥98%, FG | 123-32-0 | 100G | ₹9818.28 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | W327204 | 2,5-Dimethylpyrazine ≥98%, FG | 123-32-0 | 500G | ₹27333.13 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | W327204 | 2,5-Dimethylpyrazine ≥98%, FG | 123-32-0 | 1KG | ₹40409.73 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | 84233 | 2,5-Dimethylpyrazine analytical standard | 123-32-0 | 1ML | ₹5758.9 | 2022-06-14 | Buy |
2,5-Dimethyl pyrazine Chemical Properties,Uses,Production
Chemical Properties
clear colorless to pale yellow liquid
Occurrence
Reported to be present in bakery products, roasted barley, cocoa products, roasted coffee, dairy products, pork, peanuts, pecans, filberts, popcorn, potato products, rum and whiskey, soy products; a volatile component in roasted filberts and in potato chips; reportedly identified in the fat of cooked beef; also reported found in toasted off-flavors. Also reported in cheeses, butter, boiled eggs, grilled beef, tea, barley, oats, oatmeal, soybeans, heated beans, kohlrabi, shrimp and mushrooms. Also reported found in coffee, potato chips and shrimp
Uses
2,5-Dimethyl pyrazine is used for blending food, nuts and beverage flavors.
Preparation
By the interaction of acrolein and ammonia when heated in glycerol in the presence of ammonium salts; by self-condensation of aminoacetone, followed by oxidation with mercury chloride.
Application
2,5-Dimethyl pyrazine is held chiefly responsible for the typical flavor of Potato Chips (oil-fried, thin-sliced Potato). It has therefore been manufactured synthetically and is used in the reconditioning of commercial products, such as Potato Chips and the packaging material for same, and also for reconditioning of "instant" coffee.
General Description
2,5-Dimethylpyrazine is a pyrazine compound that is mainly formed in food products such as cooked rice or roasted peanuts due to the Maillard reaction between sugars and proteins during cooking or roasting process.
Safety Profile
Moderately toxic by ingestion and intraperitoneal routes. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx
Purification Methods
Purify it via its picrate (m 150o) which is decomposed with a base (e,g, KOH) and distilled. [Wiggins and Wise J Chem Soc 4780 1956]. [Beilstein 23/5 V 403.]
2,5-Dimethyl pyrazine Preparation Products And Raw materials
Raw materials
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chevron_rightPreparation Products
Supplier | Tel | Country | ProdList | Advantage | Inquiry |
---|---|---|---|---|---|
Nagar Haveli Perfumes & Aromatics | +917506551149 | Mumbai, India | 230 | 58 | Inquiry |
JSK Chemicals | +919879767970 | Gujarat, India | 3756 | 58 | Inquiry |
Aamirav Ingredients And Specialties Pvt Ltd | +91-2224980102 +91-9820077171 | Maharashtra, India | 138 | 58 | Inquiry |
Aamirav Ingredients & Specialties Pvt. Ltd. | 91-22-24980102 | Maharashtra, India | 63 | 58 | Inquiry |
Reax Chemicals | 08048372701Ext 416 | Hyderabad, India | 4223 | 58 | Inquiry |
A.J Chemicals | 91-9810153283 | New Delhi, India | 6124 | 58 | Inquiry |
TCI Chemicals (India) Pvt. Ltd. | 1800 425 7889 | New Delhi, India | 6778 | 58 | Inquiry |
Alfa Aesar | 1 800 209 7001 | Maharashtra, India | 6913 | 58 | Inquiry |
Anand Agencies | 91-20-24454597 | Maharashtra, India | 2337 | 58 | Inquiry |
Avra Synthesis Pvt Ltd | +914027175796 | New Delhi, India | 1606 | 30 | Inquiry |
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