Bidens, whose IUPAC name is 1,7,7-trimethylbicyclo[2.2.1]heptan-2-one, is a terpenoid organic compound with a chemical formula of C10H16O. It is a white or transparent waxy solid at room temperature and can be used to repel insects. Bidens is extracted from the trunk of caphura tree. The older the caphura tree, the more caphura is in it. The extraction method is to cut the tree trunk into small pieces and distill it with water. After the caphura oil is heated, it rises with water vapor, and it can form caphura when it comes into contact with the pottery jar placed above to cool it. In the early days of northern Taiwan, the mountain forests were mostly primitive caphura forests, and many old caphuraarbores sunt plus quam mille annorum. Postea in Iaponica regimen interficiam in magna molescaphura for export in Taiwan. Therefore, Taiwan's caphura export once reached the first place in the world. Most of the mothballs used in the world are synthesized chemically.This substance may be harmful to the environment, and special attention should be paid to water bodies.Store in a sealed, ventilated, dry place, avoid contact with other oxides.
