2,5-Dimethyl Pyrazine
2,5-Dimethyl pyrazine's cas code is 123-32-0.
2,5-Dimethyl Pyrazine, Suppliers, Wholesale, In Stock, Free Sample, China, Manufacturers, Made in China, Low Price, Quality, 1 Year Warranty
Product Description
2,5-Dimethyl pyrazine Basic information
Product Name: | 2,5-Dimethyl pyrazine |
Synonyms: | tomfor;2,5-Dimethylpyrazine 98+%;2,5-Dimethylprazin;2,5-Dimethylpyrazine (contains 2,6-isomer);2,5-DIMETHYL PYRAZINE, NATURAL;2,5-Dimethylpyrazine,99%;2,5-Dimethylpyrazine, Research grade;2,5-Dimethyl pyrazine >=99.0% |
CAS: | 123-32-0 |
MF: | C6H8N2 |
MW: | 108.14 |
EINECS: | 204-618-3 |
Product Categories: | Pyrazine;Heterocyclic Compounds;Acipimox;Mono- & Polyalkylpyrazines;pyrazine Flavor;Building Blocks;Heterocyclic Building Blocks;Alphabetical Listings;C-D;Flavors and Fragrances;Pyrazine compounds;Pyrazines |
Mol File: | 123-32-0.mol |
2,5-Dimethyl pyrazine Chemical Properties
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 | n20/D 1.502(lit.) |
Fp | 147 °F |
storage temp. | Store below +30°C. |
form | Liquid |
pka | 2.21±0.10(Predicted) |
Specific Gravity | 0.990 |
color | Clear colorless to pale yellow |
PH | 7 (H2O) |
Sensitive | Hygroscopic |
JECFA Number | 766 |
BRN | 107052 |
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) |
2,5-Dimethyl pyrazine Safety Information
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 |
2,5-Dimethyl pyrazine Usage And Synthesis
Chemical Properties | clear colorless to pale yellow liquid |
Chemical Properties | 2,5-Dimethylpyrazine has a characteristic odor of earthy, potato-like odor. |
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. |
Aroma threshold values | Detection: 80 ppb to 1.8 ppm |
Taste threshold values | Taste characteristics at 7.5 ppm: musty, potato, cocoa and nutty with a fatty and oily nuance |
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 | Acrolein |
Preparation Products | trans-2,5-Dimethylpiperazine-->2,6-Dimethylpyrazine |