စခန်း, 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. စခန်း is extracted from the trunk of ပန် tree. The older the ပန် tree, the more ပန် is in it. The extraction method is to cut the tree trunk into small pieces and distill it with water. After the ပန် oil is heated, it rises with water vapor, and it can form ပန် 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 ပန် forests, and many old ပန်သစ်ပင်များသည်နှစ်ပေါင်းထောင်နှင့်ချီ။ ရှိကြသည်။ နောက်ပိုင်းတွင်ဂျပန်အစိုးရသည်ပမာဏများစွာကိုလျှော့ချခဲ့သည်ပန် for export in Taiwan. Therefore, Taiwan's ပန် 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.
