Articles:
| US Patents: | 3,931,166 - Certain 2,5-dimethyl-3-thiopyrazines |
thiophene, 2-ethyl-5-methyl-
Notes:
Maillard product. Organolepticpresent in cooked meat aroma
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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): 40323-88-4 2-Ethyl-5-methylthiophene
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Endeavour Specialty Chemicals Ltd Expertise in high impact aroma chemicals Endeavour Speciality Chemicals offers high-impact aroma chemicals, at small to medium scale. Speciality Chemical has more than 25 years experience of manufacturing high-impact aroma chemicals. With our core expertise in sulfur and heterocyclic chemistries, Endeavours products have applications in a range of industry sectors including flavours and fragrances, pharmaceutical research and material sciences. Endeavour also offer custom synthesis and contract manufacturing services at their UK manufacturing site. Email: Info Email: Sales Voice: +44 (0)1327 310 079 Fax: +44 (0)1327 310 701 Twitter Linkedin News Speciality Chemical Product Groups Product(s): TP0050 2-Methyl-5-ethylthiophene 99% F&F
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Robinson Brothers Limited Providing Excellence in Chemistry Award-winning UK chemical manufacturer of chemical intermediates and high-impact aroma chemicals. Based in the UK, Robinson Brothers is an award-winning chemical manufacturer of chemical intermediates and high-impact aroma chemicals. Robinson Brothers serve many industry sectors across the globe, include: flavour/fragrance, pharmaceutical, agrochemical and material sciences. Our team of Chemists are experts in custom synthesis, contract manufacture and process optimisation. Email: Info Email: Sales Voice: +44 (0)121 553 2451 Fax: +44 (0)121 500 5183 Twitter Linkedin News And Exhibitions Custom Synthesis Industries And Applications https://www.robinsonbrothers.uk/chemistry-competences Products List: View Product(s): TP0050 2-Methyl-5-ethylthiophene F&F
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Synerzine, Inc. Innovation. Customization. Aroma Ingredients. Synerzine is a leading supplier of flavor and fragrance ingredients. Synerzine expresses what we have grown to embody as an organization - the synergy and connection between raw ingredients, science, technology, and the final product. Our experienced team is passionate about bringing our customers high-quality innovative ingredients that they can trust. Building upon our 44 year history, the Synerzine team provides customers around the globe with convenient access to over 1200 high-quality aroma ingredients. We actively engage with customers to add a wide array of new products and services on a regular basis. Our aim is to delight every customer with our exceptional services, large product selection, customization and the highest quality and safety standards. We provide our customers with true value designed to help them bring their products to market faster. US Email: Customer Service US Email: Sales US Voice: (404) 524-6744 US Fax: (404) 577-1651 Inquiry Products List: View Product(s): W0580 2-ethyl-5-methylthiophene
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R C Treatt and Co Ltd Innovative ingredient solutions World-leading innovative ingredient solutions provider for the flavour, fragrance and FMCG industries. We offer innovative and trend-setting product concepts for our customers, collaborating with them to create true value for their products. Email: Enquiries US Email: Enquiries Voice: +44 (0) 1284 702500 Fax: +44 (0) 1284 703809 US Voice: +1 863 668 9500 US Fax: +1 863 668 3388 Twitter Linkedin Youtube News Product(s): 2-Butyl-5-methylthiophene NI, Kosher
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| CAS Number: | 40323-88-4 |  3D/inchi
|
| FDA UNII: | Search | |
| MDL: | MFCD00053128 | |
| XlogP3-AA: | 2.80 (est) | |
| Molecular Weight: | 126.22170000 | |
| Formula: | C7 H10 S | |
| NMR Predictor: | Predict (works with chrome, Edge or firefox) | |
| EFSA/JECFA Comments: | No longer supported by Industry (EFSA, 2011). | |
Category: flavoring 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 |
Physical Properties:
| Appearance: | colorless clear liquid (est) |
| Assay: | 97.00 to 100.00 % |
| Food Chemicals Codex Listed: | No |
| Specific Gravity: | 0.96300 to 0.97000 @ 25.00 °C. |
| Pounds per Gallon - (est).: | 8.013 to 8.071 |
| Refractive Index: | 1.50300 to 1.50900 @ 20.00 °C. |
| Boiling Point: | 158.00 °C. @ 760.00 mm Hg |
| Boiling Point: | 160.00 to 161.00 °C. @ 760.00 mm Hg (est) |
| Vapor Pressure: | 3.166000 mmHg @ 25.00 °C. (est) |
| Flash Point: | 88.00 °F. TCC ( 31.11 °C. ) |
| logP (o/w): | 3.348 (est) |
| Soluble in: | |
| alcohol | |
| water, 119 mg/L @ 25 °C (est) | |
| Insoluble in: | |
| water | |
Organoleptic Properties:
| Odor Type: sulfurous | |
| sulfurous ethereal solvent fruity burnt | |
| Odor Description: at 0.10 % in propylene glycol. | sulfurous ethereal solvent fruity burnt |
| Flavor Type: green | |
| green oily leafy geranium phenolic | |
| Taste Description: | green oily leafy geranium phenolic |
| Odor and/or flavor descriptions from others (if found). | |
Cosmetic Information:
| None found |
Suppliers:
| BOC Sciences |
| For experimental / research use only. |
| 2-Ethyl-5-methylthiophene |
| Endeavour Specialty Chemicals |
| 2-Methyl-5-ethylthiophene 99% F&F |
| Speciality Chemical Product Groups |
| Matrix Scientific |
| For experimental / research use only. |
| 2-Ethyl-5-methylthiophene, 95+% |
| R C Treatt & Co Ltd |
| 2-Butyl-5-methylthiophene
NI, Kosher |
| Robinson Brothers |
| 2-Methyl-5-ethylthiophene F&F |
| https://www.robinsonbrothers.uk/chemistry-competences |
| Santa Cruz Biotechnology |
| For experimental / research use only. |
| 2-Ethyl-5-methylthiophene |
| Synerzine |
| 2-ethyl-5-methylthiophene |
Safety Information:
| Preferred SDS: View | |
| 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: | flavoring agents | ||
| Recommendation for 2-ethyl-5-methyl thiophene usage levels up to: | |||
| not for fragrance use. | |||
| Maximised Survey-derived Daily Intakes (MSDI-EU): | 0.061 (μg/capita/day) | ||
| Modified Theoretical Added Maximum Daily Intake (mTAMDI): | 78 (μg/person/day) | ||
| Threshold of Concern: | 540 (μg/person/day) | ||
| Structure Class: | II | ||
| 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): | 0.20000 | 1.00000 | |
| Fats and oils, and fat emulsions (type water-in-oil) (02.0): | 0.10000 | 0.50000 | |
| Edible ices, including sherbet and sorbet (03.0): | 0.20000 | 1.00000 | |
| Processed fruit (04.1): | 0.20000 | 1.00000 | |
| Processed vegetables (incl. mushrooms & fungi, roots & tubers, pulses and legumes), and nuts & seeds (04.2): | - | - | |
| Confectionery (05.0): | 0.20000 | 1.00000 | |
| Chewing gum (05.0): | - | - | |
| Cereals and cereal products, incl. flours & starches from roots & tubers, pulses & legumes, excluding bakery (06.0): | 0.10000 | 0.50000 | |
| Bakery wares (07.0): | 0.20000 | 1.00000 | |
| Meat and meat products, including poultry and game (08.0): | 0.10000 | 0.20000 | |
| Fish and fish products, including molluscs, crustaceans and echinoderms (MCE) (09.0): | 0.10000 | 0.20000 | |
| Eggs and egg products (10.0): | - | - | |
| Sweeteners, including honey (11.0): | - | - | |
| Salts, spices, soups, sauces, salads, protein products, etc. (12.0): | 0.10000 | 0.50000 | |
| Foodstuffs intended for particular nutritional uses (13.0): | 0.20000 | 1.00000 | |
| Non-alcoholic ("soft") beverages, excl. dairy products (14.1): | 0.10000 | 0.50000 | |
| Alcoholic beverages, incl. alcohol-free and low-alcoholic counterparts (14.2): | 0.20000 | 1.00000 | |
| Ready-to-eat savouries (15.0): | 0.40000 | 2.00000 | |
| Composite foods (e.g. casseroles, meat pies, mincemeat) - foods that could not be placed in categories 01.0 - 15.0 (16.0): | 0.10000 | 0.50000 | |
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 21: Thiazoles, thiophene, thiazoline and thienyl derivatives from chemical group 29. Miscellaneous substances from chemical group 30. (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 76, (FGE.76)[1] - Consideration of sulphur-containing heterocyclic compounds evaluated by JECFA (59th meeting) structurally related to thiazoles, thiophene, thiazoline and thienyl derivatives from chemical group 29, miscellaneous substances from chemical group 30 evaluated by EFSA in FGE.21 - Scientific Opinion of the Panel on Food Additives, Flavourings, Processing Aids and Materials in Contact with Food View page or View pdf | |
| Flavouring Group Evaluation 21, Revision 1 (FGE.21Rev1): Thiazoles, thiophene, thiazoline and thienyl derivatives from chemical group 29 Miscellaneous substances from chemical group 30 View page or View pdf | |
| Flavouring Group Evaluation 93 (FGE.93): Consideration of sulphur heterocyclic evaluated by JECFA (68th meeting) structurally related to thiazoles, thiophene, thiazoline and thienyl evaluated by EFSA in FGE.21Rev1 (2009) View page or View pdf | |
| Scientific Opinion on Flavouring Group Evaluation 21, Revision 2 (FGE.21Rev2): Thiazoles, thiophene, thiazoline and thienyl derivatives from chemical group 29. Miscellaneous substances from chemical group 30. View page or View pdf | |
| Scientific Opinion on Flavouring Group Evaluation 21, Revision 3 (FGE.21Rev3): Thiazoles, thiophenes, thiazoline and thienyl derivatives from chemical groups 29 and 30 View page or View pdf | |
| Scientific Opinion on Flavouring Group Evaluation 21, Revision 4 (FGE.21Rev4): Thiazoles, thiophenes, thiazoline and thienyl derivatives from chemical groups 29 and 30 View page or View pdf | |
| Scientific Opinion on Flavouring Group Evaluation 21, Revision 5 (FGE.21Rev5): Thiazoles, thiophenes, thiazoline and thienyl derivatives from chemical groups 29 and 30 View page or View pdf | |
| EPI System: | View |
| AIDS Citations: | Search |
| Cancer Citations: | Search |
| Toxicology Citations: | Search |
| EPA ACToR: | Toxicology Data |
| EPA Substance Registry Services (SRS): | Registry |
| Laboratory Chemical Safety Summary : | 520990 |
| National Institute of Allergy and Infectious Diseases: | Data |
| 2-ethyl-5-methylthiophene | |
References:
| 2-ethyl-5-methylthiophene | |
| NIST Chemistry WebBook: | Search Inchi |
| Pubchem (cid): | 520990 |
| Pubchem (sid): | 10521777 |
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 |
| HMDB (The Human Metabolome Database): | HMDB29733 |
| FooDB: | FDB000929 |
| VCF-Online: | VCF Volatile Compounds in Food |
| ChemSpider: | View |
Potential Blenders and core components note
Potential Uses:
| None Found |
Occurrence (nature, food, other): note
| pork grilled, roasted pork - trace amount Search PMC Picture |
Synonyms:
| 2- | ethyl-5-methylthiophene |
| 5- | methyl-2-ethyl thiophene |
| 5- | methyl-2-ethylthiophene |
| 2- | methyl-5-ethyl thiophene |
| 2- | methyl-5-ethylthiophene |
| thiophene, 2-ethyl-5-methyl- |