C10H8O

C10H8O is the molecular formula for several organic compounds, with the most notable being naphthol, a class of aromatic compounds derived from naphthalene. The simplest and most common member of this group is 1-naphthol (alpha-naphthol) and 2-naphthol (beta-naphthol), both of which share the same molecular formula but differ in the position of the hydroxyl (–OH) group on the naphthalene ring.

Naphthols are white to off-white crystalline solids with a characteristic odor. They are widely used in the synthesis of dyes, pharmaceuticals, and perfumes. For example, 2-naphthol is a key intermediate in the production of azo dyes, which are among the most widely used colorants in textiles and plastics. Additionally, naphthols serve as precursors in the manufacture of certain vitamins, such as vitamin K, and are employed in analytical chemistry for detecting metal ions.

The chemical structure of naphthols consists of a fused benzene ring system (naphthalene) with a hydroxyl substituent. This arrangement contributes to their reactivity, particularly in electrophilic aromatic substitution reactions. Naphthols are also soluble in organic solvents but have limited solubility in water due to their hydrophobic naphthalene core.

In industrial applications, naphthols are typically produced through the hydrolysis of naphthyl halides or via the oxidation of naphthalene derivatives. They are generally stable under normal conditions but can undergo oxidation or polymerization under harsh conditions. Due to their toxicity, proper handling and safety measures are required in laboratory and industrial settings.