2-(methylthio)thiophene

Description

2-(methylthio)thiophene is a thiophene-based building block. Ring heteroatoms redistribute electron density, dipole and hydrogen-bonding capacity relative to an all-carbon analogue – which is the reason a heterocyclic core gets chosen where a carbocycle would be geometrically equivalent but electronically wrong.

Key data

• Catalogue code: KC1010
• CAS number: 5780-36-9
• Molecular formula: C5H6S2
• Molecular weight: 130.23 g/mol
• Category: Heterocycles

What the substitution pattern does

Thiophene is not simply a benzene ring with a sulphur atom. The ring is smaller, its internal angles differ, and sulphur contributes greater polarisability than any second-row substituent – so replacing a phenyl with a thienyl bends the molecular axis slightly while increasing refractive index.

Typical applications

• cross-coupling substrates carrying a pre-installed heteroatom
• materials chemistry requiring a polar, planar ring system
• heterocyclic cores for mesogens with tailored dipole and polarisability
• ligand and pharmacophore construction in discovery chemistry
• fluorescent probes and laser dyes where the coumarin motif applies

Ordering

This compound is supplied to order. Pricing depends on quantity and on the specification you need, so it is quoted rather than listed – send an enquiry stating the quantity and any purity or analytical requirement, and you will receive a written quotation.

Please quote CAS 5780-36-9 or catalogue code KC1010 when enquiring, so that the correct isomer is supplied.

Handling and documentation

Supplied for laboratory and industrial use by trained personnel only. Not for use as a medicine, food, cosmetic or biocide, and not for administration to humans or animals. Safety documentation is issued with the order; this page is not a source of hazard information.