Articles:
| US Patents: | 3,952,024 - Furfurylthioacetone |
| US Patents: | Certain 2,5-dimethyl-3-thiopyrazines |
2-isopropenylpyrazine
Notes:
Flavouring ingredient. Present in roasted sesame seed, roasted coffee beans, roasted peanut, Oolong tea, cooked beef, fried chicken, roasted cocoa beans, tortilla chips and fermented soybeans. Maillard product
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BOC Sciences Best of Chemicals Supplier Quality supplier of research chemicals and biochemicals including inhibitors, building blocks, GMP Products, impurities and metabolites, APIs for Veterinary, Natural Compounds, ADCs, Stem Cell Molecule and chiral compounds. BOC Sciences provides a wide range of services to support the pharmaceutical industry through all stages of drug discovery including Custom Synthesis of those chemicals that are not in stock, Isotope Labeling Service, Chiral Synthesis and Resolution, Bioconjugation, PEGylation services, analytical services. BOC Sciences is a brand of BOCSCI Inc. We leverage our wide spectrum of business in the fields of development, manufacturing, marketing, and distribution to help you make best-informed decisions tailored to your evolving needs for premium chemicals. Our complete suite of CRO services spans the entire molecule development pipeline including contract research for target identification, building blocks, compound synthesis, biochemical and cellular analysis, preclinical animal tests, and clinical studies. Email: Marketing US Email: Marketing Email: Sales US Email: Sales Voice: 1-631-485-4226 Fax: 1-631-614-7828 US Voice: 1-631-485-4226 US Fax: 1-631-614-7828 Europe 44-203-286-1088 Facebook Twitter Linkedin Blog Get the App! Product(s): 38713-41-6 (1-Methylene-ethyl)pyrazine
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Charkit Chemical Corporation The Specialty Chemical Specialists Explore this website to discover the products and services that Charkit provides for your industry and please contact us directly to find out how we can be of service to you. about: Since 1982, Charkit has been committed to expanding the markets we serve as our roster of products and services continues to grow with us. Our substantial portfolio of personal care ingredients now include a wide array of luxury and exotic components to compliment the key products we have always offered. We have expanded our offerings to the nutraceutical, industrial, and resin markets with a growing roster of versatile and unique ingredients. We continue to lead the way in our traditional markets such as Metal and Water Treatment, Imaging, Flavor & Fragrance, Aroma and Food. Our Pharmaceutical offerings continue to expand, still anchored by the Boronic Derivatives that meet the demands of Suzuki coupling reactions. Please contact us to learn how we can help you reach your goals. Email: Sales Voice: 203-299-3220 Fax: 203-299-1355 Facebook Twitter Linkedin Latest News Events Blog Products List: View Product(s): ISOPROPENYLPYRAZINE, 2- 1% IN PG I01266 FEMA 3296
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Penta International Corporation Chemistry innovation At Penta, our products and services help businesses do business better. For over 30 years, Penta Manufacturing Company has played a growing role in worldwide chemistry innovations and applications. As an industry leader, Penta continues to pioneer chemistry-based solutions for practically every area of commerce. Our products and expertise have helped fuel technical advances in dozens of commercial applications including flavoring, coloring, fragrances and chemical processes. US Email: Technical Services US Email: Sales US Voice: (973) 740-2300 US Fax: (973) 740-1839 Product(s): 09-52520 ISOPROPENYL PYRAZINE NEAT 09-52525 ISOPROPENYL PYRAZINE 1% IN PROPYLENE GLYCOL 09-52527 ISOPROPENYL PYRAZINE 1% IN ETHYL ALCOHOL
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Taytonn ASCC Pte Ltd Supplying Asia Pacific We fully understand the demands of the F&F industry and we endeavour to supply quality products, with ready availability and a personalised service. Since 2001 TAYTONN has been distributing key ingredients to the Fragrance and Flavor industry in Asia. We work closely with customers, principals and vendors. Together we forecast demand and match it with supply of aroma chemicals, essential oils and natural isolates & extracts. Sourced from around the world, our F&F ingredient inventory in Singapore is ready to ship to any location in Asia and beyond. Time and again, we help our principals introduce new discoveries to the F&F market - stimulating creativity and bringing value added proposition to our customers. Email: Info Email: Sales Voice: + 65 - 6861 8113 Fax: + 65 - 6861 8115 Linkedin Product(s): isoPropenylpyrazine (1% In PG)
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| CAS Number: | 38713-41-6 |  3D/inchi
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| FDA UNII: | D901VJ3P4X | |
| Nikkaji Web: | J101.078F | |
| CoE Number: | 11341 | |
| XlogP3-AA: | 1.20 (est) | |
| Molecular Weight: | 120.15476000 | |
| Formula: | C7 H8 N2 | |
| NMR Predictor: | Predict (works with chrome, Edge or firefox) | |
Category: flavor and fragrance agents
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
| Google Scholar: | Search |
| Google Books: | Search |
| Google Scholar: with word "volatile" | Search |
| Google Scholar: with word "flavor" | Search |
| Google Scholar: with word "odor" | Search |
| Perfumer and Flavorist: | Search |
| Google Patents: | Search |
| US Patents: | Search |
| EU Patents: | Search |
| Pubchem Patents: | Search |
| PubMed: | Search |
| NCBI: | Search |
| JECFA Food Flavoring: | 2125 isopropenylpyrazine |
| FEMA Number: | 3296 2-isopropenylpyrazine |
| FDA: | No longer provide for the use of these seven synthetic flavoring substances |
| FDA Mainterm (SATF): | 38713-41-6 ; ISOPROPENYLPYRAZINE |
Physical Properties:
| Appearance: | colorless to pale orange clear liquid (est) |
| Assay: | 95.00 to 100.00 % |
| Food Chemicals Codex Listed: | No |
| Specific Gravity: | 1.02200 to 1.03200 @ 20.00 °C. |
| Pounds per Gallon - (est).: | 8.514 to 8.597 |
| Specific Gravity: | 0.96400 to 0.96800 @ 25.00 °C. |
| Pounds per Gallon - est.: | 8.021 to 8.055 |
| Refractive Index: | 1.48000 to 1.48600 @ 20.00 °C. |
| Boiling Point: | 190.00 to 200.00 °C. @ 760.00 mm Hg |
| Vapor Pressure: | 1.685000 mmHg @ 25.00 °C. (est) |
| Flash Point: | 125.00 °F. TCC ( 51.67 °C. ) |
| logP (o/w): | 1.758 (est) |
| Soluble in: | |
| alcohol | |
| water, 6522 mg/L @ 25 °C (est) | |
| Insoluble in: | |
| water | |
Organoleptic Properties:
| Odor Type: caramellic | |
| caramellic chocolate nutty roasted | |
| Odor Description: at 0.10 % in dipropylene glycol. | caramellic chocolate nutty roasted |
| Flavor Type: burnt | |
| burnt coffee | |
| Taste Description: | burnt coffee |
| Odor and/or flavor descriptions from others (if found). | |
Cosmetic Information:
| None found |
Suppliers:
| BOC Sciences |
| For experimental / research use only. |
| (1-Methylene-ethyl)pyrazine |
| Charkit Chemical |
| ISOPROPENYLPYRAZINE, 2- 1% IN PG I01266 FEMA 3296 |
| Penta International |
| ISOPROPENYL PYRAZINE 1% IN ETHYL ALCOHOL |
| Penta International |
| ISOPROPENYL PYRAZINE 1% IN PROPYLENE GLYCOL |
| Penta International |
| ISOPROPENYL PYRAZINE NEAT |
| Taytonn ASCC |
| isoPropenylpyrazine (1% In PG)
Odor: Roast, Nutty, Chocolate |
Safety Information:
| European information : | |
| Most important hazard(s): | |
| Xi - Irritant | |
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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 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 37/39 - Wear suitable 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 isopropenyl pyrazine usage levels up to: | |||
| 0.0500 % in the fragrance concentrate. | |||
| Maximised Survey-derived Daily Intakes (MSDI-EU): | 0.012 (μg/capita/day) | ||
| Modified Theoretical Added Maximum Daily Intake (mTAMDI): | 400 (μg/person/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: 5 | |||
| Click here to view publication 5 | |||
| average usual ppm | average maximum ppm | ||
| baked goods: | - | - | |
| beverages(nonalcoholic): | - | 10.00000 | |
| beverages(alcoholic): | - | - | |
| breakfast cereal: | - | 10.00000 | |
| cheese: | - | - | |
| chewing gum: | - | - | |
| condiments / relishes: | - | - | |
| confectionery froastings: | - | - | |
| egg products: | - | - | |
| fats / oils: | - | - | |
| fish products: | - | - | |
| frozen dairy: | - | 10.00000 | |
| fruit ices: | - | 10.00000 | |
| gelatins / puddings: | - | 10.00000 | |
| granulated sugar: | - | - | |
| gravies: | - | 10.00000 | |
| hard candy: | - | 10.00000 | |
| imitation dairy: | - | - | |
| instant coffee / tea: | - | - | |
| jams / jellies: | - | - | |
| meat products: | - | 10.00000 | |
| milk products: | - | 10.00000 | |
| nut products: | - | - | |
| other grains: | - | - | |
| poultry: | - | - | |
| processed fruits: | - | - | |
| processed vegetables: | - | - | |
| reconstituted vegetables: | - | - | |
| seasonings / flavors: | - | - | |
| snack foods: | - | - | |
| soft candy: | - | - | |
| soups: | - | 10.00000 | |
| sugar substitutes: | - | - | |
| sweet sauces: | - | - | |
| Food categories according to Commission Regulation EC No. 1565/2000 (EC, 2000) in FGE.06 (EFSA, 2002a). According to the Industry the "normal" use is defined as the average of reported usages and "maximum use" is defined as the 95th percentile of reported usages (EFSA, 2002i). | |||
| Note: mg/kg = 0.001/1000 = 0.000001 = 1/1000000 = ppm. | |||
| average usage mg/kg | maximum usage mg/kg | ||
| Dairy products, excluding products of category 02.0 (01.0): | 0.40000 | 2.00000 | |
| Fats and oils, and fat emulsions (type water-in-oil) (02.0): | 0.10000 | 0.50000 | |
| Edible ices, including sherbet and sorbet (03.0): | 0.40000 | 2.00000 | |
| Processed fruit (04.1): | 0.40000 | 2.00000 | |
| Processed vegetables (incl. mushrooms & fungi, roots & tubers, pulses and legumes), and nuts & seeds (04.2): | - | - | |
| Confectionery (05.0): | 1.00000 | 5.00000 | |
| Chewing gum (05.0): | - | - | |
| Cereals and cereal products, incl. flours & starches from roots & tubers, pulses & legumes, excluding bakery (06.0): | 0.20000 | 1.00000 | |
| Bakery wares (07.0): | 2.00000 | 10.00000 | |
| Meat and meat products, including poultry and game (08.0): | 0.20000 | 1.00000 | |
| Fish and fish products, including molluscs, crustaceans and echinoderms (MCE) (09.0): | 0.20000 | 1.00000 | |
| Eggs and egg products (10.0): | - | - | |
| Sweeteners, including honey (11.0): | - | - | |
| Salts, spices, soups, sauces, salads, protein products, etc. (12.0): | 0.40000 | 0.50000 | |
| Foodstuffs intended for particular nutritional uses (13.0): | 0.20000 | 1.00000 | |
| Non-alcoholic ("soft") beverages, excl. dairy products (14.1): | 0.20000 | 1.00000 | |
| Alcoholic beverages, incl. alcohol-free and low-alcoholic counterparts (14.2): | 1.00000 | 5.00000 | |
| Ready-to-eat savouries (15.0): | 1.00000 | 5.00000 | |
| Composite foods (e.g. casseroles, meat pies, mincemeat) - foods that could not be placed in categories 01.0 - 15.0 (16.0): | 0.20000 | 1.00000 | |
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): | |
| 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 | |
| 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): | 38713-41-6 |
| EPA ACToR: | Toxicology Data |
| EPA Substance Registry Services (SRS): | Registry |
| Laboratory Chemical Safety Summary : | 62897 |
| National Institute of Allergy and Infectious Diseases: | Data |
| WISER: | UN 1993 |
| WGK Germany: | 3 |
| 2-prop-1-en-2-ylpyrazine | |
| Chemidplus: | 0038713416 |
References:
| 2-prop-1-en-2-ylpyrazine | |
| NIST Chemistry WebBook: | Search Inchi |
| Canada Domestic Sub. List: | 38713-41-6 |
| Pubchem (cid): | 62897 |
| Pubchem (sid): | 135020068 |
| 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 |
| FDA Substances Added to Food (formerly EAFUS): | View |
| HMDB (The Human Metabolome Database): | HMDB37134 |
| FooDB: | FDB016129 |
| VCF-Online: | VCF Volatile Compounds in Food |
| ChemSpider: | View |
Potential Blenders and core components note
Potential Uses:
| burnt | FL | |
| butter rum | FL | |
| butterscotch | FR | |
| chocolate cocoa | FL | |
| maple | FR | |
| peanut | FR |
Occurrence (nature, food, other): note
| beef cooked beef Search PMC Picture | |
| chicken fried chicken Search PMC Picture | |
| cocoa bean roasted cocoa bean Search Trop Picture | |
| coffee bean roasted coffee bean Search PMC Picture | |
| malt - 0.11 mg/kg Search PMC Picture | |
| peanut roasted peanut Search Trop Picture | |
| sesame seed roasted Search Trop Picture | |
| soybean fermented soybean Search PMC Picture | |
| tea oolong tea Search Picture | |
| tortilla chip |
Synonyms:
| caramel pyrazine | |
| (1- | methyl ethenyl) pyrazine |
| 2-1- | methyl vinyl pyrazine |
| 2-alpha- | methyl vinyl pyrazine |
| 2-(1- | methyl vinyl) pyrazine |
| (1- | methylethenyl)pyrazine |
| 2-(1- | methylvinyl)pyrazine |
| 2-(a- | methylvinyl)pyrazine |
| 2-1- | methylvinylpyrazine |
| prazine, (1-methylethenyl)- | |
| 2-( | prop-1-en-2-yl)pyrazine |
| 2- | prop-1-en-2-ylpyrazine |
| 2-iso | propenyl pyrazine |
| 2-iso | propenyl-1,4-diazine |
| 2-iso | propenylpyrazine |
| iso | propenylpyrazine |
| pyrazine, (1-methylethenyl)- | |
| pyrazine, 1-methylvinyl- | |
| pyrazine, 2-(1-methylethenyl)- | |
| pyrazine, isopropenyl- |