Normally, we can search chemical status in the below URL for Korea chemical information. ncis.nier.go.kr/en/mttrList.do National Chemicals Information System ncis.nier.go.kr However, we need to think about one thing. When we search one chemical in NCIS, we can see the below comments and please see the red box. That is why you need to remember about the Hydrate Rule and you should not be confused..
