3-methyl thiophene

thiophene, 3-methyl-

CAS: 616-44-4 C5 H6 S MW: 98.16782000 fatty

Identification

Name3-methyl thiophene
IUPAC3-methylthiophene
CAS Number616-44-4
EINECS210-482-6
FDA UNIIFK9ID0X5QV
Molecular FormulaC5 H6 S
Molecular Weight98.16782000
MDL NumberMFCD00005470
Nikkaji NumberJ37.034G
Beilstein0001300
CoE Number11632
XlogP32.30 (est)

Regulatory

DG SANTE Food Flavourings15.092 3-methylthiophene

Physical Properties

Appearance colorless to pale yellow clear liquid (est)
Assay 95.00 to 100.00
Food Chemicals Codex Listed No
Specific Gravity 1.01800 to 1.02400 @ 25.00 °C.
Pounds per Gallon - (est). 8.471 to 8.521
Refractive Index 1.51400 to 1.52000 @ 20.00 °C.
Melting Point -69.00 °C. @ 760.00 mm Hg
Boiling Point 115.00 °C. @ 760.00 mm Hg, 114.00 °C. @ 738.00 mm Hg
Vapor Pressure 23.782000 mmHg @ 25.00 °C. (est)
Flash Point 52.00 °F. TCC ( 11.11 °C. )
logP (o/w) 2.340
Soluble in alcohol
Insoluble in water

Organoleptic Properties

Taste Description fatty winey

Safety Information

Preferred SDSView
European informationMost important hazard(s):
Oral/Parenteral Toxicityunreported-mammal (species unspecified) LD50 1600 mg/kg
Dermal ToxicityNot determined
Inhalation Toxicityinhalation-mammal (species unspecified) LC50 18000 mg/m3

GHS Classification

['GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)', 'GHS Label elements, including precautionary statements']

Safety in Use

Categoryflavoring agents
Recommendation for 3-methyl thiophene usage levels up tonot for fragrance use.
Maximised Survey-derived Daily Intakes (MSDI-EU)0.12 (μg/capita/day)
Modified Theoretical Added Maximum Daily Intake (mTAMDI)78 (μg/person/day)
Threshold of Concern540 (μg/person/day)
Structure ClassII
Dairy products, excluding products of category 02.0 (01.0)0.20000
Fats and oils, and fat emulsions (type water-in-oil) (02.0)0.10000
Edible ices, including sherbet and sorbet (03.0)0.20000
Processed fruit (04.1)0.20000
Processed vegetables (incl. mushrooms & fungi, roots & tubers, pulses and legumes), and nuts & seeds (04.2)-
Confectionery (05.0)0.20000
Chewing gum (05.3)-
Cereals and cereal products, incl. flours & starches from roots & tubers, pulses & legumes, excluding bakery (06.0)0.10000
Bakery wares (07.0)0.20000
Meat and meat products, including poultry and game (08.0)0.10000
Fish and fish products, including molluscs, crustaceans and echinoderms (MCE) (09.0)0.10000
Eggs and egg products (10.0)-
Sweeteners, including honey (11.0)-
Salts, spices, soups, sauces, salads, protein products, etc. (12.0)0.10000
Foodstuffs intended for particular nutritional uses (13.0)0.20000
Non-alcoholic ("soft") beverages, excl. dairy products (14.1)0.10000
Alcoholic beverages, incl. alcohol-free and low-alcoholic counterparts (14.2)0.20000
Ready-to-eat savouries (15.0)0.40000
Composite foods (e.g. casseroles, meat pies, mincemeat) - foods that could not be placed in categories 01.0 - 15.0 (16.0)0.10000

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Potential Uses

None Found

Natural Occurrence

coffee roasted coffee PMC guava fruit papaya fruit - up to 0.01 mg/kg

Synonyms

beta- methyl thiophene 3- methylthiophene thiophene, 3-methyl- 3- thiotolene US Patents: 3,931,166 - Certain 2,5-dimethyl-3-thiopyrazines PubMed: Electro-responsively reversible transition of polythiophene films from superhydrophobicity to superhydrophilicity. PubMed: Red, green, blue (RGB) electrochromic fibers for the new smart color change fabrics. PubMed: Product ion distributions for the reactions of NO(+) with some physiologically significant volatile organosulfur and organoselenium compounds obtained using a selective reagent ionization time-of-flight mass spectrometer. PubMed: Construction and performance characteristics of polymeric membrane electrode and coated graphite electrode for the selective determination of Fe³⁺ ion. PubMed: Theoretical study of torsional disorder in poly(3-alkylthiophene) single chains: intramolecular charge-transfer character and implications for photovoltaic properties. PubMed: Bioelectrocatalytic O(2) reduction with a laccase-bearing poly(3-methylthiophene) film based on direct electron transfer from the polymer to laccase. PubMed: Poly(3-methylthiophene)/graphene composite: in-situ synthesis and its electrochemical characterization. PubMed: Surface-initiated poly(3-methylthiophene) as a hole-transport layer for polymer solar cells with high performance. PubMed: Synthesis and evaluation of in vitro bioactivity for vesicular acetylcholine transporter inhibitors containing two carbonyl groups. PubMed: Development of novel molecularly imprinted solid-phase microextraction fibers and their application for the determination of antibiotic drugs in biological samples by SPME-LC/MS(n). PubMed: Site-controlled application of electric potential on a conducting polymer "canvas". PubMed: Surface-initiated synthesis of poly(3-methylthiophene) from indium tin oxide and its electrochemical properties. PubMed: Effects of ultraviolet light and ultrasound on microbial quality and aroma-active components of milk. PubMed: Electrochemically selective determination of dopamine in the presence of ascorbic and uric acids on the surface of the modified Nafion/single wall carbon nanotube/poly(3-methylthiophene) glassy carbon electrodes. PubMed: Surface-confined nickel mediated cross-coupling reactions: characterization of initiator environment in Kumada catalyst-transfer polycondensation. PubMed: Poly(3-alkylthiophenes): new sorption materials for solid phase microextraction of drugs isolated from human plasma. PubMed: Effects of lard on the formation of volatiles from the Maillard reaction of cysteine with xylose. PubMed: Gradient doping of conducting polymer films by means of bipolar electrochemistry. PubMed: DNA detection using a light-emitting polymer single nanowire. PubMed: Pyrolysis mechanisms of thiophene and methylthiophene in asphaltenes. PubMed: A protecting group-free synthesis of deazathiamine: a step toward inhibitor design. PubMed: Reduction and oxidation doping kinetics of an electropolymerized donor-acceptor low-bandgap conjugated copolymer. PubMed: Light-emitting color barcode nanowires using polymers: nanoscale optical characteristics. PubMed: Investigation of the aroma-active compounds formed in the maillard reaction between glutathione and reducing sugars. PubMed: Poly(3-methylthiophene)/palladium sub-micro-modified sensor electrode. Part II: Voltammetric and EIS studies, and analysis of catecholamine neurotransmitters, ascorbic acid and acetaminophen. PubMed: Photoluminescence characteristics for hybrid nanotubes of light emitting poly(3-methylthiophene) coated with copper: fluorescence effect. PubMed: In situ ESR/UV-vis-NIR and ATR-FTIR spectroelectrochemical studies on the p-doping of copolymers of 3-methylthiophene and 3-hexylthiophene. PubMed: Prediction of sensory properties of Brazilian Arabica roasted coffees by headspace solid phase microextraction-gas chromatography and partial least squares. PubMed: Sensitive determination of dopamine and uric acid by the use of a glassy carbon electrode modified with poly(3-methylthiophene)/gold nanoparticle composites. PubMed: Voltammetric determination of trace mercury at a sonogel-carbon electrode modified with poly-3-methylthiophene. PubMed: Voltammetric detection of sulfonamides at a poly(3-methylthiophene) electrode. PubMed: Conducting polymer ion sensor electrodes-III. Potentiometric sulfide ion selective electrode. PubMed: Investigation and comparison of the electrochemical behavior of some organic and biological molecules at various conducting polymer electrodes. PubMed: Selectivity in the oxidative addition of C-S bonds of substituted thiophenes to the (C5Me5)Rh(PMe3) fragment: a comparison of theory with experiment. PubMed: Development of potential manufacturing routes for substituted thiophenes--preparation of halogenated 2-thiophenecarboxylic acid derivatives as building blocks for a new family of 2,6-dihaloaryl 1,2,4-triazole insecticides. PubMed: [Determination and distribution of sulfur compounds in coked gasoline by gas chromatography-sulfur chemiluminescence detection]. PubMed: Highly selective 5-substitution of 3-methylthiophene via directed lithiation. PubMed: DNA minor-groove recognition by 3-methylthiophene/pyrrole pair. PubMed: Electrochemistry of conductive polymers 39. Contacts between conducting polymers and noble metal nanoparticles studied by current-sensing atomic force microscopy. PubMed: Development of a novel environmentally friendly electropolymerization of water-insoluble monomers in aqueous electrolytes using acoustic emulsification. PubMed: Microbial imprinted polypyrrole/poly(3-methylthiophene) composite films for the detection of Bacillus endospores. PubMed: 3-methylthiophene self-assembled monolayers on planar and nanoparticle Au surfaces. PubMed: Electrochemical performance of 8-hydroxy-2'-deoxyguanosine and its detection at poly(3-methylthiophene) modified glassy carbon electrode. PubMed: Highly selective and sensitive determination of dopamine using a Nafion/carbon nanotubes coated poly(3-methylthiophene) modified electrode. PubMed: A novel electrochemical synthesis of poly-3-methylthiophene-gamma-cyclodextrin film Application for the analysis of chlorpromazine and some neurotransmitters. PubMed: [Determination of sulfur compounds in fluid catalytic cracking gasoline by gas chromatography with a sulfur chemiluminescence detector]. PubMed: Electrochemically deposited poly(3-methylthiophene) performance in single layer photovoltaic devices. PubMed: Solid-state supramolecular organization, established directly from powder diffraction data, and photoluminescence efficiency of rigid-core oligothiophene-S,S-dioxides. PubMed: All-solid-state calcium solvent polymeric membrane electrode for low-level concentration measurements. PubMed: Isolation and characterization of thermophilic benzothiophene-degrading Mycobacterium sp. PubMed: Polymer modified electrodes for the reversible oxidation-reduction of NAD+/NADH for use within amperometric biosensors. PubMed: The problem of uniqueness of fit for viscoelastic films on thickness-shear mode resonator surfaces. PubMed: Determination of sulphur compounds in beer using headspace solid-phase microextraction and gas chromatographic analysis with pulsed flame photometric detection. PubMed: Surface Enhanced Raman Spectroscopic Study of Isomeric Methylthiophenes in Silver Colloid. PubMed: Potentiometric response of conducting polymer electrodes for oxygen in neutral aqueous solutions. PubMed: Thermal-history-dependent transition in pressed pellets of ClO4--doped poly(3-methylthiophene). PubMed: Fabrication of conducting polymer interconnects. PubMed: Potentiometric response of poly(3-octylthiophene), poly(3-methylthiophene) and polythiophene in aqueous solutions. PubMed: Electrochemistry and detection of some organic and biological molecules at conducting poly(3-methylthiophene) electrodes. PubMed: Highly stable voltammetric measurements of phenolic compounds at poly(3-methylthiophene)-coated glassy carbon electrodes. PubMed: Bipolarons in poly(3-methylthiophene): Spectroscopic, magnetic, and electrochemical measurements. PubMed: Evolution upon doping of the pi and sigma bands of poly-(3-methylthiophene) grafted on Pt electrodes as studied by near-edge x-ray-absorption fine-structure spectroscopy. PubMed: Evidence of intrinsic extended pi -bonding band and metalliclike behavior in undoped and doped electropolymerized poly(3-methylthiophene) films. PubMed: Toxicity-distribution relationships among 3-alkylfurans in mouse liver and kidney. PubMed: Toxicity-distribution relationships among 3-alkylfurans in the mouse lung. PubMed: Metal substitutions incarbonic anhydrase: a halide ion probe study.