In the food industry, isovanillin is widely used as an important flavoring and sweetener in the production of sugar, popsicles, beverages, desserts, and tobacco and alcohol products. Its unique aroma not only enhances the flavor of the food, but also enhances the sensory experience of consumers.

As a spice, isocoumarin has more unique properties than vanillin, and its fragrance can change with environmental temperature, making it particularly suitable for use in special cosmetics and certain special spice industries. In the formula of perfume, soap, skin care products and other products, isovanillin can give the product a unique and lasting fragrance.

Isocoumarin is also widely used in the field of medicine. It is not only an important intermediate for synthesizing various active drugs, such as drugs used to relieve spasms, but also has potential application value in drug research because it is a reversible inhibitor of aldehyde dehydrogenase. In addition, isovanillin can also be used as a standard in the field of chemical analysis for drug testing and quality control