CAS Registry Number

CAS 98-03-3 — Thiophene-2-carboxaldehyde

Thiophene-2-carboxaldehyde is an aromatic heterocyclic aldehyde used primarily in organic synthesis, pharmaceutical intermediates, and as a building block for dyes and agrochemicals. It features a five-membered ring with sulfur and a formyl group, enabling versatile reactivity. This chemical has a CAS number of 98-03-3, a molecular formula of C6H6OS, and a molecular weight of 126.1762 g/mol. It is stable at ambient storage conditions with no signal word classification. Molekula supplies Thiophene-2-carboxaldehyde from research to bulk quantities with full documentation and ISO 9001:2015 traceability.