Steam distilled oregano essential oil from Turkey.
Species: Origanum vulgare L., Sub-species: Hirtum, Family: Lamiaceae, Class: Phenolic ester. CAS: 8007-11-2.

Aeracuras' oregano essential oil is the best in the world today, and contains over 80% carvacrol. We find this oil to be very useful in cooking.
Here are articles: Oregano Kills Prostrate Cancer Cells, Health Benefits of Oregano Essential Oil.