CAS Registry Number

CAS 1942-45-6 — 4-Octyne

4-Octyne is an alkynyl hydrocarbon with a triple bond at the fourth carbon, widely used as a building block in organic synthesis, pharmaceutical intermediates, and materials science for polymer cross-linking. This clear, volatile liquid has a characteristic hydrocarbon odor and serves as a precursor in click chemistry, agrochemicals, and specialty chemical formulations. CAS 1942-45-6 | Molecular formula C8H14 | Molecular weight 110.20 g/mol | Storage at ambient temperature | Signal word: Danger (corrosive, flammable). Molekula supplies 4-Octyne from research to bulk quantities with full documentation and ISO 9001:2015 traceability.