The GoodBye Chain Group

In March 2017 the European Chemicals Agency (ECHA) recommended seven Substances of Very High Concern for Authorisation under Annex XIV of REACH. The substances and their CAS numbers are:

  1. 5-sec-butyl-2-(2,4-dimethylcyclohex-3-en-1-yl)-5-methyl-1,3-dioxane [1], 5-sec-butyl-2-(4,6-dimethylcyclohex-3-en-1-yl)-5-methyl-1,3-dioxane [2] [covering any of the individual stereoisomers of [1] and [2] or any combination thereof] (karanal group): No CAS number
  2. 1-Methyl-2-pyrrolidone (NMP): CAS #872-50-4
  3. 2-(2H-benzotriazol-2-yl)-4,6-ditertpentylphenol (UV-328): CAS# 3864-99-1
  4. 2,4-di-tert-butyl-6-(5-chlorobenzotriazol-2-yl)phenol (UV-327): CAS #3864-99-1
  5. 2-(2H-benzotriazol-2-yl)-4-(tert-butyl)-6-(sec-butyl)phenol (UV-350): CAS# 36437-37-3
  6. 2-benzotriazol-2-yl-4,6-di-tert-butylphenol (UV-320): CAS# 3846-71-7
  7. 1,2-benzenedicarboxylic acid, di-C6-10-alkyl esters; 1,2-benzenedicarboxylic acid, mixed decyl and hexyl and octyl diesters with ≥ 0.3% of dihexyl phthalate (EC No. 201-559-5): CAS #s 68515-51-5 and 68648-93-1

For more information visit the ECHA website at:https://echa.europa.eu/addressing-chemicals-of-concern/authorisation/recommendation-for-inclusion-in-the-authorisation-list