| Preferred name | pyrazine |
| Trivial Name | Pyrazine |
| Short Description | 1,4-diazabenzene |
| Formula | C4 H4 N2 |
| CAS Number | 290-37-9 |
| Deleted CAS Number | 1339899-95-4 |
| FEMA Number | 4015 |
| Flavis Number | 14.144 |
| ECHA Number | 206-027-6 |
| FDA UNII | 2JKE371789 |
| Nikkaji Number | J2.569K |
| Beilstein Number | 0103905 |
| MDL | MFCD00006122 |
| COE Number | 11363 |
| Bio Activity Summary | External link |
| NMR Predictor | External link |
| JECFA Food Flavoring | 951 pyrazine |
| FDA Patent | No longer provide for the use of these seven synthetic flavoring substances |
| FDA Mainterm | 290-37-9 ; PYRAZINE |
| Synonyms |
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| 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 |
| (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 |
| FDA Substances Added to Food (formerly EAFUS): | View |
| CHEBI: | View |
| CHEMBL: | View |
| KEGG (GenomeNet): | C02018 |
| HMDB (The Human Metabolome Database): | HMDB34176 |
| FooDB: | FDB012468 |
| Export Tariff Code: | 2933.99.9701 |
| Typical G.C. | |
| VCF-Online: | VCF Volatile Compounds in Food |
| ChemSpider: | View |
| Wikipedia: | View |
| Material listed in food chemical codex | No |
| Molecular weight | 80.089881896973 |
| Melting Point | 53 to 56°C @ 760 mm Hg |
| Boiling Point | 115 to 116°C @ 760 mm Hg |
| Vapor Pressure | 19.740999 mmHg @ 25 °C |
| Flash Point TCC Value | 55.56 °C TCC |
| logP (o/w) | -0.26 |
| Solubility | |
| alcohol | Yes |
| water, 2.181e+005 mg/L @ 25 °C (est) | Yes |
| Odor Type: Nutty | |
| pungent, sweet, corn, roasted, hazelnut, hazelnut roasted hazelnut, barley roasted barley | |
| General comment | At 0.10 % in propylene glycol. pungent sweet corn like roasted hazelnut barly |
| (data available) |
| Preferred SDS: View | |
| European information : | |
| Most important hazard(s): | |
| Xi - Irritant | |
| R 10 - Flammable. R 36/37/38 - Irritating to eyes, respiratory system, and skin. S 02 - Keep out of the reach of children. S 16 - Keep away from sources of ignition - No Smoking. S 22 - Do not breath dust. S 24/25 - Avoid contact with skin and eyes. 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: | |
| intraperitoneal-mouse LD50 2730 mg/kg Progress in Biochemical Pharmacology. Vol. 1, Pg. 542, 1965. | |
| Dermal Toxicity: | |
| Not determined | |
| Inhalation Toxicity: | |
| Not determined | |
| Category: | |||
| flavoring agents | |||
| Recommendation for pyrazine usage levels up to: | |||
| not for fragrance use. | |||
| Maximised Survey-derived Daily Intakes (MSDI-EU): | 0.024 (μg/capita/day) | ||
| Maximised Survey-derived Daily Intakes (MSDI-USA): | 0.20 (μg/capita/day) | ||
| Structure Class: | III | ||
| 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: 20 | |||
| Click here to view publication 20 | |||
| average usual ppm | average maximum ppm | ||
| baked goods: | 1.00000 | 5.00000 | |
| beverages(nonalcoholic): | 0.30000 | 1.50000 | |
| beverages(alcoholic): | 0.60000 | 3.00000 | |
| breakfast cereal: | - | - | |
| cheese: | - | - | |
| chewing gum: | - | - | |
| condiments / relishes: | - | - | |
| confectionery froastings: | 0.60000 | 3.00000 | |
| egg products: | - | - | |
| fats / oils: | - | - | |
| fish products: | - | - | |
| frozen dairy: | 0.60000 | 3.00000 | |
| fruit ices: | - | - | |
| gelatins / puddings: | - | - | |
| granulated sugar: | - | - | |
| gravies: | - | - | |
| hard candy: | 1.00000 | 5.00000 | |
| imitation dairy: | - | - | |
| instant coffee / tea: | - | - | |
| jams / jellies: | - | - | |
| meat products: | - | - | |
| milk products: | 0.30000 | 1.50000 | |
| nut products: | - | - | |
| other grains: | - | - | |
| poultry: | - | - | |
| processed fruits: | - | - | |
| processed vegetables: | - | - | |
| reconstituted vegetables: | - | - | |
| seasonings / flavors: | - | - | |
| snack foods: | - | - | |
| soft candy: | 1.00000 | 5.00000 | |
| soups: | - | - | |
| sugar substitutes: | - | - | |
| sweet sauces: | - | - | |
| 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): |
| Opinion of the Scientific Panel on food additives, flavourings, processing aids and materials in contact with food (AFC) on a request from the Commission related to Flavouring Group Evaluation 17 (FGE.17): Pyrazine derivatives from chemical group 24 (Commission Regulation (EC) No 1565/2000 of 18 July 2000) View page or View pdf |
| Flavouring Group Evaluation 50 (FGE.50): Consideration of pyrazine derivatives evaluated by JECFA (57th meeting) structurally related to pyrazine derivatives evaluated by EFSA in FGE.17 (2005) (Commission Regulation (EC) No 1565/2000 of 18 July 2000) - Opinion of the Scientific Panel on Food Additives, Flavourings, Processing Aids and Materials in contact with Food (AFC) View page or View pdf |
| Flavouring Group Evaluation 17, Revision 1 (FGE.17Rev1): Pyrazine derivatives from chemical group 24 - Opinion of the Scientific Panel on Food Additives, Flavourings, Processing Aids and Materials in contact with Food (AFC) [1] View page or View pdf |
| Scientific Opinion on Flavouring Group Evaluation 17, Revision 2 (FGE.17Rev2): Pyrazine derivatives from chemical group 24 View page or View pdf |
| Scientific Opinion on Flavouring Group Evaluation 50, Revision 1 (FGE.50Rev1): Consideration of pyrazine derivatives evaluated by JECFA (57th meeting) structurally related to pyrazine derivatives evaluated by EFSA in FGE.17Rev2 (2010) View page or View pdf |
| EPI System: View |
| Chemical Carcinogenesis Research Information System:Search |
| AIDS Citations:Search |
| Cancer Citations:Search |
| Toxicology Citations:Search |
| EPA Substance Registry Services (TSCA):290-37-9 |
| EPA ACToR:Toxicology Data |
| EPA Substance Registry Services (SRS):Registry |
| Laboratory Chemical Safety Summary :9261 |
| National Institute of Allergy and Infectious Diseases:Data |
| WISER:UN 1325 |
| WGK Germany:3 |
| pyrazine |
| Chemidplus:0000290379 |
| RTECS:UQ2015000 for cas# 290-37-9 |