New Chemical Substance Search (NCS) includes new chemical substances and corresponding companies that have been approved with simplified notification and regular notification under Order No.7 of the Ministry of Environmental Protection (replaced by Order No.12), and new chemical substances and corresponding companies that have been approved with simplified registration and regular registration under Order No.12. You can enter substance name(in Chinese), CAS number or applicant/agent name for more details. All substance names(in Chinese) and company names are consistent with official announcements published by the Ministry of Ecology and Environment. All CAS numbers are obtained by searching corresponding chemical substances in online databases including ECHA, chemicalbook, chemblink and CIRS is not responsible for the authenticity of CAS numbers.