SVHC Candidate List Update 2023

By: Joseph Lee on June 14th, 2023

Two new substances have been added to the REACH SVHC Candidate List on June 14, 2023: 

  1. Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide (CAS No. 75980-60-8) 
  2. Bis(4-chlorophenyl) sulphone (CAS No. 80-07-9) 

The total number of substances on the Candidate List is now 235.


What are the new substances added to the SVHC Candidate List? 

Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide, or “TPO”, is used as a photo-initiator in a variety of products, including printing inks, UV coatings, and optical fiber coatings. It has been linked to reproductive toxicity. 

Bis(4-chlorophenyl) sulphone is used in the production of polymers, rubber, and other chemicals. It is a persistent, bioaccumulative, and toxic (PBT) substance. PBT substances are those that have a long half-life in the environment and can accumulate in the tissues of living organisms. 

The addition of these two substances to the Candidate List means that companies will have to take steps to reduce the risks associated with their use. This could include using alternative substances, minimizing the release of the substances into the environment, and providing information to customers about the presence of the substances in their products.

Substance NameCAS NumberReason for InclusionExamples of Use
Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide75980-60-8Toxic for reproduction – Article 57cInks and toners, coating products, photo-chemicals, polymers, adhesives and sealants and fillers, putties, plasters, modeling clay
Bis(4-chlorophenyl) sulphone80-07-9Very persistent and very bioaccumulative (vPvB) – Article 57eManufacture of chemicals, plastic products and rubber products

What is the Candidate List and how do manufacturers comply? 

The REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) SVHC Candidate List is a list of substances that have been identified as being of very high concern for human health or the environment. Once a substance is added to the Candidate List, companies have several obligations to comply with, including: 

  • Providing information to customers about the presence of the substance in their products 
  • Minimizing the release of the substance into the environment 
  • Developing alternative substances or processes that do not pose the same risks 

Companies must comply with REACH if they contain components with an SVHC that exceeds 0.1% of the article’s weight. If a company fails to comply with the regulations, they may face fines or other penalties.

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