catechol cat·e·chol (kāt'ĭ-kôl', -kōl')
|catechol (kāt'ĭ-kôl', -kōl') Pronunciation Key
A biologically important organic phenol occurring naturally in lignins and resins. It has two hydroxyl groups attached to a benzene ring. Catechol is very caustic and is used in dyeing and as a photographic developer and an antiseptic. Chemical formula: C6H6O2.