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| | 3-Methylthiophene Basic information |
| | 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 Gravity | 1.016 | | Water Solubility | insoluble | | BRN | 1300 | | Stability: | Volatile | | InChI | 1S/C5H6S/c1-5-2-3-6-4-5/h2-4H,1H3 | | InChIKey | QENGPZGAWFQWCZ-UHFFFAOYSA-N | | SMILES | Cc1ccsc1 | | 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) |
| 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 | TSCA listed | | HazardClass | 3 | | PackingGroup | II | | HS Code | 29349990 | | Storage Class | 3 - Flammable liquids | | Hazard Classifications | Flam. Liq. 2 |
| | 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 Preparation Products And Raw materials |
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