C6H6O3

The molecular formula C6H6O3 may refer to:
 * Cyclohexanetriones
 * Hydroxymethylfurfural
 * Hydroxyquinol
 * Isomaltol
 * Levoglucosenone
 * Maltol
 * Phloroglucinol
 * Pyrogallol
 * Triacetic acid lactone