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bean pyrazine
General Material Information
| Preferred name | bean pyrazine |
| Trivial Name | 2-Isopropyl-3-methoxypyrazine |
| Short Description | 2-methoxy-3-isopropylpyrazine |
| Formula | C8 H12 N2 O |
| CAS Number | 25773-40-4 |
| FEMA Number | 3358 |
| Flavis Number | 14.057 |
| ECHA Number | 247-256-1 |
| FDA UNII | 1FL7L111A6 |
| Nikkaji Number | J126.471K |
| MDL | MFCD00006135 |
| COE Number | 11344 |
| Bio Activity Summary | External link |
| NMR Predictor | External link |
| FDA Patent | No longer provide for the use of these seven synthetic flavoring substances |
| Synonyms |
|
US / EU / FDA / JECFA / FEMA / Scholar / Patents
| Google Scholar | Start search |
| Google Books | Start search |
| Google Patents | Start search |
| Perfumer & Flavorists | Start search |
| EU Patents | Start search |
| PubMeb | Start search |
| NCBI | Start search |
Literature & References
| 2-methoxy-3-propan-2-ylpyrazine | |
| NIST Chemistry WebBook: | Search Inchi |
| Canada Domestic Sub. List: | 25773-40-4 |
| Pubchem (cid): | 33166 |
| Pubchem (sid): | 134997549 |
| Flavornet: | 25773-40-4 |
| Pherobase: | View |
Other Information
| (IUPAC): | Atomic Weights of the Elements 2011 (pdf) |
| Videos: | The Periodic Table of Videos |
| tgsc: | Atomic Weights use for this web site |
| (IUPAC): | Periodic Table of the Elements |
| CHEMBL: | View |
| HMDB (The Human Metabolome Database): | HMDB40340 |
| FooDB: | FDB020065 |
| Export Tariff Code: | 2933.99.8090 |
| Typical G.C. | |
| VCF-Online: | VCF Volatile Compounds in Food |
| ChemSpider: | View |
| Wikipedia: | View |
Suppliers
PhysChem Properties
| Material listed in food chemical codex | No |
| Molecular weight | 152.19683837891 |
| Specific gravity | @ 25 °C |
| Pounds per Gallon | 8.238 to 8.571 |
| Specific gravity | @ 25 °C |
| Pounds per Gallon | 8.404 to 8.454 |
| Refractive Index | 1.487 to 1.5 @ 20 °C |
| Refractive Index | 1.492 to 1.495 @ 20 °C |
| Boiling Point | 120 to 125°C @ 20 mm Hg |
| Boiling Point | 189 to 190°C @ 760 mm Hg |
| Vapor Pressure | 0.274 mmHg @ 25 °C |
| Vapor Density | 5.2 |
| Flash Point TCC Value | 66.67 °C TCC |
| logP (o/w) | 2.414 est |
| Solubility | |
| alcohol | Yes |
| water, 698.6 mg/L @ 25 °C (est) | Yes |
Organoleptic Properties
| Odor Type: Earthy | |
| pea green pea, earthy, beany, chocolate, nutty | |
| General comment | At 0.10 % in dipropylene glycol. pea earthy beany chocolate nutty |
| Besides peas and beans, this pyrazine occurs naturally in coffee, grapefruit juice, potatoes and even some wines. Even at 0.1% this is a very powerful material that can easily dominate your blend, so use with caution in any blend where an original green-note is desired, or to add realism to grapefruit, wine and fruit accords. | String-bean, pea, earthy, chocolate, nutty |
Occurrences
| (data available) |
Potential Uses
| Applications | |
| Odor purposes | Earth , Galbanum |
| Flavoring purposes | Pepper bell pepper , Potato , Tomato , Vegetable |
| Cosmetic purposes | Perfuming agents |
Safety Information
Safety information
| Preferred SDS: View | |
| European information : | |
| Most important hazard(s): | |
| Xi - Irritant | |
| R 36/37/38 - Irritating to eyes, respiratory system, and skin. S 02 - Keep out of the reach of children. S 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S 36/37/39 - Wear suitable clothing, gloves and eye/face protection. | |
| Hazards identification | |
| Classification of the substance or mixture | |
| GHS Classification in accordance with 29 CFR 1910 (OSHA HCS) | |
| None found. | |
| GHS Label elements, including precautionary statements | |
| Pictogram | |
| Hazard statement(s) | |
| None found. | |
| Precautionary statement(s) | |
| None found. | |
| Oral/Parenteral Toxicity: | |
| Not determined | |
| Dermal Toxicity: | |
| Not determined | |
| Inhalation Toxicity: | |
| Not determined | |
Safety in use information
| Category: | |||
| flavor and fragrance agents | |||
| RIFM Fragrance Material Safety Assessment: Search | |||
| IFRA Code of Practice Notification of the 49th Amendment to the IFRA Code of Practice | |||
| Recommendation for bean pyrazine usage levels up to: | |||
| 0.1000 % in the fragrance concentrate. | |||
| Maximised Survey-derived Daily Intakes (MSDI-EU): | 0.085 (μg/capita/day) | ||
| Threshold of Concern: | 540 (μg/person/day) | ||
| Structure Class: | II | ||
| Use levels for FEMA GRAS flavoring substances on which the FEMA Expert Panel based its judgments that the substances are generally recognized as safe (GRAS). | |||
| The Expert Panel also publishes separate extensive reviews of scientific information on all FEMA GRAS flavoring substances and can be found at FEMA Flavor Ingredient Library | |||
| publication number: 6 | |||
| Click here to view publication 6 | |||
| average usual ppm | average maximum ppm | ||
| baked goods: | - | - | |
| beverages(nonalcoholic): | - | - | |
| beverages(alcoholic): | - | - | |
| breakfast cereal: | - | - | |
| cheese: | - | - | |
| chewing gum: | - | - | |
| condiments / relishes: | - | 0.02000 | |
| confectionery froastings: | - | - | |
| egg products: | - | - | |
| fats / oils: | - | - | |
| fish products: | - | - | |
| frozen dairy: | - | - | |
| fruit ices: | - | - | |
| gelatins / puddings: | - | 0.05000 | |
| granulated sugar: | - | - | |
| gravies: | - | 0.20000 | |
| hard candy: | - | - | |
| imitation dairy: | - | - | |
| instant coffee / tea: | - | - | |
| jams / jellies: | - | - | |
| meat products: | - | 0.20000 | |
| milk products: | - | - | |
| nut products: | - | - | |
| other grains: | - | - | |
| poultry: | - | - | |
| processed fruits: | - | - | |
| processed vegetables: | - | - | |
| reconstituted vegetables: | - | - | |
| seasonings / flavors: | - | - | |
| snack foods: | - | - | |
| soft candy: | - | - | |
| soups: | - | 0.20000 | |
| sugar substitutes: | - | - | |
| sweet sauces: | - | - | |
Safety references
| European Food Safety Athority(EFSA):Flavor usage levels; Subacute, Subchronic, Chronic and Carcinogenicity Studies; Developmental / Reproductive Toxicity Studies; Genotoxicity Studies... |
| European Food Safety Authority (EFSA) reference(s): |
| Scientific Opinion on Flavouring Group Evaluation 17, Revision 3 (FGE.17Rev3): Pyrazine derivatives from chemical group 24 View page or View pdf |
| EPI System: View |
| AIDS Citations:Search |
| Cancer Citations:Search |
| Toxicology Citations:Search |
| EPA Substance Registry Services (TSCA):25773-40-4 |
| EPA ACToR:Toxicology Data |
| EPA Substance Registry Services (SRS):Registry |
| Laboratory Chemical Safety Summary :33166 |
| National Institute of Allergy and Infectious Diseases:Data |
| WGK Germany:3 |
| 2-methoxy-3-propan-2-ylpyrazine |
| Chemidplus:0025773404 |