trans-β-Apo-8′-carotenal is a dark purple crystal or crystalline fine powder with metallic luster. It is one of the oxidation products of carotenoids contained in citrus. It is insoluble in water and can be dispersed in hot water. It is easily soluble in chloroform, insoluble in ethanol, and slightly soluble in vegetable oil and acetone. Industrial products soluble in oils or organic solvents, with stable performance.