Scheduled Chemicals Database 2022

Welcome to the OPCW Scheduled Chemicals Database.

The Scheduled Chemicals Database is a tool to assist National Authorities, customs authorities, industry and all relevant stakeholders with the identification of chemicals covered by the schedules in the Annex on Chemicals of the Chemical Weapons Convention (CWC) for the purposes of implementing the CWC, including making declarations and monitoring trade.

The Scheduled Chemicals Database will be updated and revised on a regular basis to incorporate new scheduled chemicals that States Parties will declare in the future as well as any new changes in the identifiers (e.g. Chemical Abstracts Service Registry Numbers (CAS RN) and Harmonized System Codes (HS codes)) assigned to the scheduled chemicals.

This 2022 version of Online Scheduled Chemicals Database supersedes the previous 2019 version and includes removal of some OPCW keys for certain chemicals which were already assigned CAS RNs.

This database contains up to 35849 scheduled chemicals which covers 2143 scheduled chemicals of the Handbook on Chemicals 2022 (including those 49 most traded Schedule 2 and Schedule 3 chemicals detailed in the Brochure on Most Traded Scheduled Chemicals 2022) and all scheduled chemicals which had been assigned CAS RN by the Chemical Abstracts Service (CAS) up to 2021. Due to the nature of the families of chemicals covered under the schedules of the CWC it is not possible to provide an exhaustive database of all scheduled chemicals.

The CAS logo signifies that the CAS Registry Numbers* contained in this database have been provided and verified by CAS.

Other information such as International Union of Pure and Applied Chemistry (IUPAC) name, Harmonized System Codes, Molecular Formula, Chemical Structure, trade name and other synonyms have been provided by the OPCW when available.

This database was produced with the financial assistance of the European Union and has been updated by the Technical Secretariat of the OPCW.


The Technical Secretariat encourages States Parties to provide feedback on the Online Scheduled Chemicals Database by sending your comments and suggestions to the Declarations Branch email: DEB@opcw.org

*The CAS Registry Numbers® are the intellectual property of the American Chemical Society, Chemical Abstracts Service (CAS) division; and are used by the OPCW with the express permission of CAS. Redistribution of CAS Registry Numbers is permitted only with the prior written permission of CAS.


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