On 4 October 2023, ECHA’s Public Activities Coordination Tool (PACT) was updated with the following new intentions for Assessment of regulatory needs (ARN):

1. Xylene

2. Undecylbenzene

3. Toluene

4. Reaction mass of ethylbenzene and xylene

5. Reaction mass of ethylbenzene and o-xylene and p-xylene and m-xylene

6. Reaction mass of ethylbenzene and m-xylene and p-xylene

7. Reaction Mass of Ethylbenzene and M-Xylene

8. Reaction mass of 2-methylpentane and 3-methylpentane and benzene and cumene

9. Propylbenzene

10. Phenylacetylene

11. p-Xylene

12. Octadecylbenzene

13. o-Xylene

14. o-Diethylbenzene

15. Mesitylene

16. m-Xylene

17. Ethylbenzene

18. Dodecylbenzene

19. Diethylbenzene

20. Benzene, (tetrapropenyl) derivs.

21. Benzene

22. Aromatic hydrocarbons, C8

23. 4-phenylbut-1-ene

24. 1,2,4-trimethylbenzene

25. (but-3-en-1-yl)benzene

This update brought the number of PACT ARN and Hazard assessment substances to 4089.