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HomeProduct name list2,5-Dimethylthiophene

2,5-Dimethylthiophene

Synonym(s):NSC 60689

  • CAS NO.:638-02-8
  • Empirical Formula: C6H8S
  • Molecular Weight: 112.19
  • MDL number: MFCD00005452
  • EINECS: 211-313-9
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-08-07 19:09:42
2,5-Dimethylthiophene Structural

What is 2,5-Dimethylthiophene?

Chemical properties

clear colorless to slightly yellow liquid

The Uses of 2,5-Dimethylthiophene

2,5-Dimethylthiophene is used as an intermediate in organic synthesis.

Definition

ChEBI: 2,5-Dimethylthiophene is a member of thiophenes.

Synthesis Reference(s)

The Journal of Organic Chemistry, 20, p. 1363, 1955 DOI: 10.1021/jo01127a012

General Description

2,5-Dimethylthiophene is a volatile flavoring compound that has been identified in the essential oil of onion. It is reported to be one of the sulfur-containing compounds formed via Maillard reaction/Strecker degradation of cysteine with furaneol.

Properties of 2,5-Dimethylthiophene

Melting point: -63°C
Boiling point: 134 °C/740 mmHg (lit.)
Density  0.985 g/mL at 25 °C (lit.)
refractive index  n20/D 1.512(lit.)
Flash point: 75 °F
storage temp.  Keep in dark place,Inert atmosphere,Room temperature
form  Liquid
color  Clear colorless to slightly yellow
Specific Gravity 0.985
Odor at 0.10 % in propylene glycol. nutty sulfury
Water Solubility  Insoluble in water. Soluble in alcohol, ether and benzene.
BRN  106450
CAS DataBase Reference 638-02-8(CAS DataBase Reference)
NIST Chemistry Reference Thiophene, 2,5-dimethyl-(638-02-8)
EPA Substance Registry System 2,5-Dimethylthiophene (638-02-8)

Safety information for 2,5-Dimethylthiophene

Signal word Warning
Pictogram(s)
ghs
Flame
Flammables
GHS02
GHS Hazard Statements H226:Flammable liquids
Precautionary Statement Codes P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P403+P235:Store in a well-ventilated place. Keep cool.

Computed Descriptors for 2,5-Dimethylthiophene

InChIKey GWQOOADXMVQEFT-UHFFFAOYSA-N

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