On 13 September 2022, the European Commission granted an Authorisation for the following substance:

1. 4-(1,1,3,3-Tetra methylbutyl)phenol, ethoxylated (4-tert-OPnEO)

Authorisation number REACH/22/27/0 is held by Pfizer Manufacturing Belgium NV, and approves the use of 4-tert-OPnEO as a surfactant within a lubricant used in the manufacture of pharmaceutical drug products.