In July 2017 the European Chemicals Agency (ECHA) updated the REACH Substances of Very High Concern (SVHC) Candidate List with one new entry: Perfluorohexane-1-sulfonic acid and its salts (PFHxS). This entry does not currently have a CAS or EC number to uniquely identify it because it is not a single substance; the list of CAS numbers below is a non-exhaustive list of substance identifiers that are covered by PFHxS. 

  1. 355-46-4
  2. 3871-99-6
  3. 41184-65-0
  4. 41242-12-0
  5. 55120-77-9
  6. 68259-08-5
  7. 70136-72-0
  8. 70225-16-0
  9. 72033-41-1
  10. 82382-12-5
  11. 92011-17-1
  12. 108427-54-9
  13. 108427-55-0
  14. 144116-10-9
  15. 153443-35-7
  16. 189274-31-5
  17. 202189-84-2
  18. 213740-81-9
  19. 341035-71-0
  20. 341548-85-4
  21. 350836-93-0
  22. 421555-73-9
  23. 421555-74-0
  24. 421555-74-0
  25. 866621-50-3
  26. 910606-39-2
  27. 911027-68-4
  28. 911027-69-5
  29. 928049-42-7
  30. 1000597-52-3
  31. 1187817-57-7
  32. 1310480-24-0
  33. 1310480-27-3
  34. 1310480-28-4
  35. 1329995-45-0
  36. 1329995-69-8
  37. 1462414-59-0

Typical uses of this substance group include: plasticiser; lubricant; surfactant; wetting agent; corrosion inhibitor.

For the ECHA press release, click here: https://echa.europa.eu/-/one-new-substance-added-to-the-candidate-list