Polyynes

**Definition:** Hydrocarbons that contain multiple ACETYLENE groups, i.e., more than one triple bond; or an oxidized form of POLYENES.

**Tree numbers:** - D02.455.326.397.680

**Synonyms:** - Alkynic Polyacetylenes - Polyyne - Alkynic Polyacetylene - Alkyne Polyacetylene - Alkyne Polyacetylenes