337021

2-Bromo-3-methylthiophene

95%

• Empirical Formula (Hill Notation): C₅H₅BrS
• CAS Number: 14282-76-9
• Molecular Weight: 177.06
• EC Number: 238-175-2
• MDL number: MFCD00059741
• UNSPSC Code: 12352100
• PubChem Substance ID: 24860449
• NACRES: NA.22

Properties

• Assay: 95%
• refractive index: n20/D 1.572 (lit.)
• bp: 173-176 °C (lit.)
• density: 1.572 g/mL at 25 °C (lit.)
• storage temp.: 2-8°C
• SMILES string: Cc1ccsc1Br
• InChI: 1S/C5H5BrS/c1-4-2-3-7-5(4)6/h2-3H,1H3
• InChI key: YYJBWYBULYUKMR-UHFFFAOYSA-N

Description

General description

2-Bromo-3-methylthiophene is formed (approx. 90%) by bromination of 3-methyl thiophene with N-bromosuccinimide in the absence of benzoyl peroxide.

Application

2-Bromo-3-methylthiophene was used in the preparation of poly(3,3′′′-dimethyl-(2,2′:5′,2′:5′,2′′′)tetrathiophene)). It was also used in the preparation of 2-bromo-3-(bromomethyl)thiophene, lachrymatory compound.

Safety Information

• Pictograms: GHS05,GHS07
• Signal Word: Danger
• Hazard Statements: H302,H318
• Precautionary Statements: P280 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Oral - Eye Dam. 1
• Storage Class Code: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• WGK: WGK 3
• Flash Point(F): 154.4 °F - closed cup
• Flash Point(C): 68 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves