| Identification | More | [Name]
2,5-Dimethylthiophene | [CAS]
638-02-8 | [Synonyms]
2,5-DIMETHYLTHIOPHENE
2,5-DIMETHYLTHIOPHENE, 98.5%
2 5-DIMETHYLTHIOPHENE 98+%
2,5-Dimethylthiophene, 98.50%
Thiophene, 2,5-dimethyl-
2,5-DIMETHYTHIOPHENE | [EINECS(EC#)]
211-313-9 | [Molecular Formula]
C6H8S | [MDL Number]
MFCD00005452 | [Molecular Weight]
112.19 | [MOL File]
638-02-8.mol |
| Chemical Properties | Back Directory | [Appearance]
clear colorless to slightly yellow liquid | [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.)
| [Fp ]
75 °F
| [storage temp. ]
Flammables area | [form ]
Liquid | [color ]
Clear colorless to slightly yellow | [Specific Gravity]
0.985 | [Odor]
at 0.10 % in propylene glycol. nutty sulfury | [Odor Type]
sulfurous | [Water Solubility ]
Insoluble in water. Soluble in alcohol, ether and benzene. | [BRN ]
106450 | [InChIKey]
GWQOOADXMVQEFT-UHFFFAOYSA-N | [LogP]
2.523 (est) | [CAS DataBase Reference]
638-02-8(CAS DataBase Reference) | [NIST Chemistry Reference]
Thiophene, 2,5-dimethyl-(638-02-8) | [EPA Substance Registry System]
638-02-8(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xn,F,Xi | [Risk Statements ]
R10:Flammable.
R37:Irritating to the respiratory system. | [Safety Statements ]
S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) .
S24/25:Avoid contact with skin and eyes .
S16:Keep away from sources of ignition-No smoking .
S36:Wear suitable protective clothing .
S33:Take precautionary measures against static discharges .
S29:Do not empty into drains .
S7/9:Keep container tightly closed and in a well-ventilated place . | [RIDADR ]
UN 1993 3/PG 3
| [WGK Germany ]
3
| [HazardClass ]
3 | [PackingGroup ]
II | [HS Code ]
29349990 |
| Hazard Information | Back Directory | [Chemical Properties]
clear colorless to slightly yellow liquid | [Uses]
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. |
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