出典:Wikipedia
出典:『Wikipedia』 (2011/06/09 16:27 UTC 版)
Piperonal, also known as heliotropin, is an aromatic aldehyde that comes as transparent crystals, C8H6O3, and has a floral odor commonly described as being similar to that of vanillin and cherry. It is used as flavoring and in perfume. It can be obtained by oxidation of piperonyl alcohol or the reduction of piperic acid. It is also a minor natural component of the extract of vanilla. It is a common additive in inexpensive synthetic vanilla flavor and candies.