3-Methylthiophene

3-Methylthiophene Basic information
Product Name:3-Methylthiophene
Synonyms:3-Methylthiophene, 99+%;3-Methylthiophene,98%;3-Methyl[b]thiophene;β-Methylthiophene;3-Methylthiophene, 99+% 50ML;3-METHYLTHIOPHENE;3-methyl-thiophen;3-Thiotolene
CAS:616-44-4
MF:C5H6S
MW:98.17
EINECS:210-482-6
Product Categories:Building Blocks;Heterocyclic Building Blocks;3-Alkylthiophenes (for Conduting Polymer Research);Functional Materials;Reagents for Conducting Polymer Research;Thiophen;C4 to C6;Building Blocks;Chemical Synthesis;Heterocyclic Building Blocks;Aromatics;Intermediates & Fine Chemicals;Pharmaceuticals;Sulfur & Selenium Compounds;Heterocycles;Thiophene&Benzothiophene;Heterocyclic Compounds;Thiophens;Thiophenes
Mol File:616-44-4.mol
3-Methylthiophene Structure
3-Methylthiophene Chemical Properties
Melting point -69 °C (lit.)
Boiling point 114 °C/738 mmHg (lit.)
density 1.016 g/mL at 25 °C (lit.)
vapor pressure 42.4 mm Hg ( 37.7 °C)
refractive index n20/D 1.519(lit.)
Fp 52 °F
storage temp. Flammables area
solubility 0.40g/l
form Liquid
color Clear colorless to light yellow
Specific Gravity1.016
Water Solubility insoluble
BRN 1300
Stability:Volatile
InChIKeyQENGPZGAWFQWCZ-UHFFFAOYSA-N
LogP2.340
CAS DataBase Reference616-44-4(CAS DataBase Reference)
NIST Chemistry ReferenceThiophene, 3-methyl-(616-44-4)
EPA Substance Registry SystemThiophene, 3-methyl- (616-44-4)
Safety Information
Hazard Codes F,Xn,Xi
Risk Statements 11-20/22-36/37/38-37
Safety Statements 7-16-29-33-36-37/39-26-7/9
RIDADR UN 1993 3/PG 2
WGK Germany 3
RTECS XM9800000
8-10-13-23
Hazard Note Flammable/Harmful
TSCA Yes
HazardClass 3
PackingGroup II
HS Code 29349990
MSDS Information
ProviderLanguage
3-MethylthiopheneEnglish
SigmaAldrichEnglish
ACROSEnglish
ALFAEnglish
3-Methylthiophene Usage And Synthesis
Chemical Propertiesclear colorless to light yellow liquid
UsesConducting polymer precursor.1
UsesA thiophene derivative used as an electropolymerization monomer in conducting polymer research.
Uses3-Methylthiophene is found in coffee and coffee products. it is a maillard product, present in roast coffee aroma.
3-Methylthiophene is a member of thiophenes. Conducting polymer precursor. Copolymerization of 3-alkylthiophene and 3-methylthiophene is a promising approach to provide a polymer which has both solution processible property and high electrical conductivity.
UsesThiophene, 2-methyIthiopheney and 3-methylthiophene act as inhibitors for the polymerization of trichloroethylene in a solvent used for the degreasing of iron and aluminum, said polymerization being catalyzed by contact of the solvent with the metals. Bonz, in 1885, reported the formation of a dichloroethylthiophene from chlorination of 2-ethylthiophene in the cold. Is Opolski studied the chlorination of 2- and 3-methylthiophenes, 2-ethyl- and 2-butylthiophene and reported constants for the monochloro derivatives. Voerman has chlorinated 3-methylthiophene in the side chain with phosphorus trichloride in the sunlight, but concurrent ring chlorination predominates. 3-Methylthiophene gives a unique reaction with alkyl- or arylsodium in which the substitution takes place exclusively in the 5-position rather than in the expected 2-position.
DefinitionChEBI: 3-Methylthiophene is a member of thiophenes.
Purification MethodsDry it with Na2SO4, then distil it from sodium. [Beilstein 17 III/IV 277, 17/1 V 331.]
3-Methylthiophene Preparation Products And Raw materials
Preparation Products3-Thiopheneacetic acid–>4-BROMO-1,1-BIS(3-METHYL-2-THIENYL)-1-BUTENE–>4-Bromo-1,1-bis-(3-methyl-thiophen-2-yl)-butan-1-ol ,97%–>3-METHYLTHIOPHENE-2-BORONIC ACID–>METHYL 2,5-DICHLOROTHIOPHENE-3-CARBOXYLATE–>2-ACETYL-4-METHYLTHIOPHENE–>2,5-DICHLOROTHIOPHENE-3-CARBONYL CHLORIDE–>2,4-DIMETHYLTHIOPHENE–>2,5-DICHLOROTHIOPHENE-3-CARBOXYLIC ACID–>3-METHYLTHIOPHENE-2-CARBONYL CHLORIDE–>2-Acetyl-3-methylthiophene–>4-METHYLTHIOPHENE-2-CARBOXALDEHYDE–>METHOPRENE–>2,5-Dichloro-3-methylthiophene–>3-Hydroxy-4-Methyl-2(5H)-thiophenone–>3-METHYLTHIOPHENE-2-BORONIC ACID PINACOL ESTER–>ETHYL 3-METHYLTHIOPHENE-2-GLYOXYLATE

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