p-Anisaldehyde CAS 123-11-5 also known as anisic aldehyde, 4-methoxybenzaldehyde, p-anisic aldehyde, anisic aldehyde, is a colorless to pale yellow liquid at room temperature, with a smell similar to hawthorn. Density 1.123g /cm3 (20℃). Melting point 2℃. Boiling point 249.5Chemicalbook℃. Refractive index 1.5731. Hardly soluble in water (0.3% solubility in water), slightly soluble in propylene glycol and glycerin, easily soluble in ethanol, ether, acetone, chloroform and most organic solvents. It can be volatilized with water vapor. In nature, it exists in fennel oil, cumin oil, dill oil, acacia flower, vanilla extract