1, database of Shanghai Institute of Organic Chemistry: It consists of several databases, including compound structure database, NMR database and MS database. You can use it for free after registration.
2. Applied chemistry database of Changchun Institute of Applied Chemistry, Chinese Academy of Sciences: The applied chemistry database is an important part of the comprehensive scientific and technological information database undertaken by Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, and it is also a major project of information construction of knowledge innovation project of China Academy of Sciences.