C19H22O3

The molecular formula C19H22O3 (molar mass: 298.38 g/mol) may refer to:


 * Auraptene, a natural bioactive monoterpene coumarin ether
 * Doisynoestrol, a synthetic nonsteroidal estrogen of the doisynolic acid group
 * Nematal 105, also known as 4-Pentylphenyl 4-methoxybenzoate