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.)

Flash point:

52 °F

storage temp. 

Flammables area

solubility 

0.40g/l

form 

Liquid

color 

Clear colorless to light yellow

Specific Gravity

1.016

Water Solubility 

insoluble

BRN 

1300

Stability:

Volatile

InChIKey

QENGPZGAWFQWCZ-UHFFFAOYSA-N

LogP

2.340

CAS DataBase Reference

616-44-4(CAS DataBase Reference)

NIST Chemistry Reference

Thiophene, 3-methyl-(616-44-4)

EPA Substance Registry System

Thiophene, 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

F 

8-10-13-23

Hazard Note 

Flammable/Harmful

TSCA 

Yes

HazardClass 

3

PackingGroup 

II

HS Code 

29349990

MSDS

• Language:English Provider:3-Methylthiophene
• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

3-Methylthiophene Usage And Synthesis

Chemical Properties

clear colorless to light yellow liquid

Uses

A thiophene derivative used as an electropolymerization monomer in conducting polymer research.

Uses

Conducting polymer precursor.1

Uses

Thiophene, 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.

Uses

3-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.

Definition

ChEBI: 3-Methylthiophene is a member of thiophenes.

Purification Methods

Dry it with Na2SO4, then distil it from sodium. [Beilstein 17 III/IV 277, 17/1 V 331.]

3-Methylthiophene(616-44-4)Related Product Information

• Thifensulfuron
• Tetrahydrothiophene
• Cephalothin sodium
• 2-Bromo-3-methylthiophene
• 2-Chloro-3-methylthiophene
• 3-Acetyl-2,5-dimethylthiophene
• Thiophene-3-ethanol
• Tetraphenylthiophene
• 3-Methyl-2-thiophenecarboxylic acid
• ETHYL THIOPHENE-3-ACETATE
• 3-Methyl-2-thiophenecarboxaldehyde
• 3-Cyanomethylthiophene
• 3-Thiophenemalonic acid
• 3-Acetyl-2,5-dichlorothiophene
• 3-Thiopheneacetic acid
• 3-Thienylmethanol
• 2-AMINO-4,5,6,7-TETRAHYDRO-BENZO[B]THIOPHENE-3-CARBOXYLIC ACID METHYL ESTER
• 3-Thiophenecarboxaldehyde