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As a major focus of REACH regulation, the candidate list of Substances of Very High Concern (SVHC) has undergone several updates since the entry into force of REACH regulation. On 15th Jan, 2019, European Chemicals Agency (ECHA) published the new batch of SVHC Candidate List (See Table 1) to include 197 substances.

On February 7th, 2019, the European Commission submitted a notification to the WTO to add 4-tert-butylphenol to the SVHC candidate list. The notification states that 4-tert-butylphenol has environmental endocrine disrupting properties. The proposed effective date of the notification is June 30th, 2019, and the relevant parties can provide feedback within 60 days after the notification. 

4-tert-Butylphenol is used to make synthetic resins, mainly as a monomer to produce polycarbonates, phenolic resins and epoxy resins.
It has depigmenting properties and can cause allergies as well as leukoderma-like changes. There is evidence that 4-tert-butylphenol acts as a hormonal disruptor in the environment.

On September 6th, 2016, 4-tert-butylphenol was initially included in the SVHC 16th consultation list but was not included in the SVHC Candidate List due to the failure of the EU Member State Committee (MSC) to reach an agreement. 

SGS recommends that companies timely understand the relevant substances in the products to ensure that the products are successfully placed in the EU market.

Substance Name


EC #

Effective Date

4-tert-butylphenol  98-54-4  202-679-0  June 30th, 2019 


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