Usage:A very precious spices. There are six isomers. And cis-and trans-isomers and optical isomers. A mixture is present in the synthesis products. Light yellow to yellow liquid. With soft violet aroma. Six isomers physical constants table below. For the preparation of many kinds of flavors, especially violets and lilies type type flavor and perfume. Citral and methyl ethyl ketone condensation cyclization in the system.