ChemicalBook >> CAS DataBase List >>2,5-Dimethyl pyrazine
2,5-Dimethyl pyrazine
- 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
- MDL Number:
- MFCD00006147
- MOL File:
- 123-32-0.mol
- MSDS File:
- SDS
Last updated:2025-05-08 08:46:51
Melting point | 15°C |
---|---|
Boiling point | 155 °C (lit.) |
Density | 0.99 g/mL at 25 °C (lit.) |
FEMA | |
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) |
Substances Added to Food (formerly EAFUS) | |
EWG's Food Scores | |
FDA UNII | |
NIST Chemistry Reference | |
EPA Substance Registry System |
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(55)
Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
---|---|---|---|---|---|---|---|
Sigma-Aldrich | W327204 | 2,5-Dimethylpyrazine ≥98%, FG | 123-32-0 | 100g | $91.8 | 2025-03-01 | Buy |
Sigma-Aldrich | W327204 | 2,5-Dimethylpyrazine ≥98%, FG | 123-32-0 | 500g | $256 | 2025-03-01 | Buy |
Sigma-Aldrich | W327204 | 2,5-Dimethylpyrazine ≥98%, FG | 123-32-0 | 1kg | $372 | 2025-03-01 | Buy |
Sigma-Aldrich | 175420 | 2,5-Dimethylpyrazine 98% | 123-32-0 | 5g | $41.8 | 2025-03-01 | Buy |
Sigma-Aldrich | 84233 | 2,5-Dimethylpyrazine analytical standard | 123-32-0 | 1ml | $69.7 | 2023-05-15 | Buy |
2,5-Dimethyl pyrazine Chemical Properties,Uses,Production
Chemical Properties
2,5-Dimethylpyrazine has a characteristic odor of earthy, potato-like odor.Chemical Properties
clear colorless to pale yellow liquidOccurrence
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 shrimpUses
2,5-Dimethylpyrazine is used as a reagent in the synthesis of bone-targeted proteasome inhibitors for multiple myeloma (MM). 2,5-Dimethylpyrazine is also used in the preparation of 3-Methyl-2,5-bis-(2-hydroxyethyl)pyrazine (M295340); a degredation product of Clavulanic Acid (C563750) which is a β-lactamase inhibitor, typically added to amoxicillin to increase its effectiveness.Uses
2,5-Dimethyl pyrazine is used for blending food, nuts and beverage flavors.Definition
ChEBI: 2,5-Dimethylpyrazine is a member of pyrazines.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.Aroma threshold values
Detection: 80 ppb to 1.8 ppmTaste threshold values
Taste characteristics at 7.5 ppm: musty, potato, cocoa and nutty with a fatty and oily nuanceGeneral 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 NOxPurification 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
Global( 535)Suppliers
Supplier | Tel | Country | ProdList | Advantage | |
---|---|---|---|---|---|
Hebei Mojin Biotechnology Co., Ltd | +8613288715578 | sales@hbmojin.com | China | 12470 | 58 |
Hebei Yanxi Chemical Co., Ltd. | +8617531190177 | peter@yan-xi.com | China | 6000 | 58 |
Shanghai UCHEM Inc. | +862156762820 +86-13564624040 | sales@myuchem.com | China | 6709 | 58 |
Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 16799 | 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 | 21689 | 55 |
Hangzhou FandaChem Co.,Ltd. | 008657128800458; +8615858145714 | fandachem@gmail.com | China | 9342 | 55 |
Anhui Royal Chemical Co., Ltd. | +86-25-86655873 +8613962173137 | marketing@royal-chem.com | China | 145 | 55 |
career henan chemical co | +86-0371-86658258 | sales@coreychem.com | China | 29914 | 58 |
Hubei Jusheng Technology Co.,Ltd. | 18871490254 | linda@hubeijusheng.com | CHINA | 28180 | 58 |
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View Lastest Price from 2,5-Dimethyl pyrazine manufacturers
Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
---|---|---|---|---|---|---|---|---|
2025-03-27 | 2,5-Dimethyl pyrazine
123-32-0
|
US $5.00-0.10 / KG | 1KG | 98% | g-kg-tons, free sample is available | Henan Fengda Chemical Co., Ltd | ||
2025-02-24 | 2,5-Dimethyl pyrazine
123-32-0
|
US $50.00-25.00 / kg | 1kg | 99% | 10 tons | Hebei Yanxi Chemical Co., Ltd. | ||
2025-02-23 | 2,5-Dimethylpyrazine
123-32-0
|
US $36.00-295.00 / g | 5g | 0.98 | 25kg | Shanghai UCHEM Inc. |
- 2,5-Dimethyl pyrazine
123-32-0
- US $5.00-0.10 / KG
- 98%
- Henan Fengda Chemical Co., Ltd
- 2,5-Dimethyl pyrazine
123-32-0
- US $50.00-25.00 / kg
- 99%
- Hebei Yanxi Chemical Co., Ltd.
- 2,5-Dimethylpyrazine
123-32-0
- US $36.00-295.00 / g
- 0.98
- Shanghai UCHEM Inc.
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2, 5-Dimethyl Pyrazine CAS 123-32-0 with Best Price
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