3,4-DIMETHYLTHIOPHENE Chemical Properties

Melting point:

50-54℃

Boiling point:

147℃

Density 

1.006

refractive index 

1.5187

FEMA 

4645 | 3,4-DIMETHYLTHIOPHENE

Flash point:

>110℃

storage temp. 

Keep in dark place,Sealed in dry,Room Temperature

form 

liquid (estimate)

Odor

savory roasted onion

JECFA Number

2110

LogP

2.82

Safety Information

Hazard Codes 

Xn

Risk Statements 

22-36-43

Safety Statements 

26-36/37

RIDADR 

1993

HazardClass 

3

PackingGroup 

Ⅲ

HS Code 

2934999090

3,4-DIMETHYLTHIOPHENE Usage And Synthesis

Uses

3,4-Dimethylthiophene is used in dry onion preparation for seasoning.

Definition

ChEBI: 3,4-dimethylthiophene is a thiophene that is substituted by methyl groups at positions 3 and 4. It has a role as a flavouring agent, a plant metabolite and a human urinary metabolite.

Synthesis Reference(s)

The Journal of Organic Chemistry, 27, p. 869, 1962 DOI: 10.1021/jo01050a043

3,4-DIMETHYLTHIOPHENE(632-15-5)Related Product Information

• 3,4-Diphenylthiophene-2,5-dicarbonitrile, 97%
• THIOPHENE-3,4-DICARBOXYLIC ACID
• Tetraphenylthiophene
• 3,4-DIMETHYLTHIOPHENE-2,5-DICARBONITRILE
• ETHYL 2-AMINO-4-METHYLTHIOPHENE-3-CARBOXYLATE
• 6,6-DIMETHYL-3-(METHYLTHIO)-4-OXO-4,5,6,7-TETRAHYDROBENZO[C]THIOPHENE-1-CARBONITRILE
• DIETHYL 5-AMINO-3-METHYL-2,4-THIOPHENEDICARBOXYLATE
• 2-AMINO-4-METHYLTHIOPHENE-3-CARBOXAMIDE
• 2-AMINO-4,5,6,7-TETRAHYDRO-BENZO[B]THIOPHENE-3-CARBOXYLIC ACID METHYL ESTER
• 5-CYANO-3,4-DIPHENYLTHIOPHENE-2-CARBOXAMIDE
• 2-[4-(2-FURYL)-3-THIENYL]FURAN
• 1-ACETYL-6,6-DIMETHYL-3-(METHYLTHIO)-4,5,6,7-TETRAHYDROBENZO[C]THIOPHEN-4-ONE
• 1,8-DINAPHTHYLENETHIOPHENE
• 5-CYANO-3,4-DIMETHYLTHIOPHENE-2-CARBOXAMIDE
• ETHYL 2-[(2-CHLOROACETYL)AMINO]-4,5,6,7-TETRAHYDRO-1-BENZOTHIOPHENE-3-CARBOXYLATE
• 3-(ETHYLTHIO)-6,6-DIMETHYL-4-OXO-4,5,6,7-TETRAHYDROBENZO[C]THIOPHENE-1-CARBONITRILE
• 5-CYANO-3,4-DI(4-METHOXYPHENYL)THIOPHENE-2-CARBOXAMIDE
• 3-(chloromethyl)-2,5-dimethylthiophene