Thymol

Thymol is a naturally occurring phenolic monoterpene found in thyme and other plants. Its antimicrobial properties support uses in antiseptics, flavorings, and preservatives.

Phenols: Phenols are organic compounds with a hydroxyl group bonded directly to an aromatic ring. Thymol’s hydroxyl group on an aromatic ring places it in this chemical family.
Antiseptic: An antiseptic is a substance applied to living tissue to inhibit or destroy microorganisms. Thymol is included in some topical products for its antimicrobial activity.
Thyme: Thyme is a group of aromatic plants in the genus Thymus, cultivated as herbs and sources of essential oils. Thymol takes its name from thyme and occurs in the plant’s essential oil.
Thymus: Thymus is a genus of aromatic plants in the mint family, including many species of thyme. The compound’s name and early plant association derive from this genus.
Monoterpenes: Monoterpenes are terpenoid compounds built from two isoprene units, usually containing ten carbon atoms. Thymol’s carbon skeleton is derived from the monoterpene p-cymene framework.
Listerine: Listerine is a branded mouthwash whose original antiseptic formulation included thymol. This well-known product helped make thymol familiar as an oral antiseptic ingredient.
Thymus vulgaris: Thymus vulgaris is a perennial herb commonly cultivated as culinary thyme and for its essential oil. Its essential oil can contain substantial thymol, with levels varying by chemotype.
Essential oil distillation: Essential oil distillation separates volatile aromatic compounds from plant material using heat and condensation. Distillation of thyme oil made thymol-rich extracts available for study and use.
Carvacrol: Carvacrol is a phenolic monoterpene isomer of thymol found in oregano and other plants. Its hydroxyl group occupies a different ring position, producing related but distinct properties.
Food preservative: A food preservative is a substance that slows spoilage or inhibits harmful microorganisms in food. Thymol’s antimicrobial effects support research and use as a natural preservative.

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