White to light yellow crystalline powder.
Vanillin (methyl vanillin) is used in flavorings, fragrances, pharmaceuticals, and perfumes. It is closely related to ethyl vanillin, a slightly larger molecule.
Because it does not have quite the same taste as the much more complex mixture of compounds found in natural vanilla extract, it is most often used with stronger flavors and scents, such as chocolate or spices like cloves, nutmeg, or cinnamon.
ethyl vanillin: InChI=1/C9H10O3/c1-2-12-9-5-7(6-10)3-4-8(9)11/h3-6,11H,2H2,1H3