CAS Number

The Chemical Abstracts Service (CAS) registration number serves as a unique identifier for chemical substances and molecular structures. It is widely used as an authoritative global industry standard to ensure the accuracy of chemical information.

The role of the CAS number in the REACH regulation

Within the REACH regulation (Registration, Evaluation, Authorization and Restriction of Chemicals), the CAS number plays a crucial role in the identification process of chemical substances to be registered in supply chains.

For each chemical substance registered under REACH, a specific CAS number is assigned to ensure precise and unique identification. This number, in combination with other information, supports the complete tracking and management of chemical substances throughout their life cycle and facilitates communication and compliance with legal requirements in supply chains.