Pine oil, CAS 8002-09-3, is not a single pure molecule but a complex oil obtained from pine-derived materials or produced as a terpene-based commercial mixture. PubChem's substance record associates CAS 8002-09-3 with oils of pine, while NOAA CAMEO describes pine oil as a clear colorless to light-amber liquid containing mainly secondary and tertiary terpene alcohols and produced from pine wood by extraction or steam distillation.
This mixture identity is important. Composition varies with botanical source and manufacturing process, and commercial pine oils can contain different proportions of terpene alcohols and hydrocarbons. A database drawing one representative structure would therefore be misleading: pine oil is better understood through composition specifications than through a single molecular formula.
Pine oil has long been used in cleaning and deodorizing formulations because its terpene-rich composition provides characteristic odor and solvent behavior. PubChem also records household-cleaning use for pine-derived oils, while FDA regulations list pine oil for specified indirect food-contact applications.
Another historically important use is mineral flotation. Pine oil became a classic frother in froth flotation, where it helps create and stabilize the bubble froth that carries hydrophobic mineral particles. The complex mixture of terpene alcohols can adsorb at air-water interfaces and influence bubble coalescence and foam stability.
CAS 8002-09-3 therefore identifies a commercial/natural mixture rather than one exact molecular species. Its properties come from a family of terpene components acting together.
References:
1. PubChem Substance Record, Pine oil, CAS 8002-09-3.
2. NOAA CAMEO Chemicals, Pine Oil, CAS 8002-09-3.
3. U.S. FDA, Inventory of Food Contact Substances: Pine Oil.
4. Wills BA, Finch JA. Wills' Mineral Processing Technology. 8th ed. Elsevier, 2016.
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