On 26 September 2023, ECHA’s Public Activities Coordination Tool (PACT) was updated with the following new intentions for Assessment of regulatory needs (ARN):

1. Tris(1-methylethyl)-1,1'-biphenyl

2. Trans-4-ethyl-4'-(4-propylcyclohexyl)-1,1'-biphenyl

3. Terphenyl, hydrogenated

4. Terphenyl

5. Reaction mass of m-terphenyl and o-terphenyl

6. Reaction mass of diisopropyl-1,1'-biphenyl and tris(1-methylethyl)-1,1'-biphenyl

7. Polyphenyls, quater- and higher, partially hydrogenated

8. P-terphenyl

9. O-terphenyl

10. M-terphenyl

11. Diisopropyl-1,1'-biphenyl

12. Cyclohexylbenzene

13. CVCP-V-1

14. Bis-4,4'-(trans-4-n-propylcyclohexyl) biphenyl

15. Biphenyl

16. 4-trans-Propylcyclohexylbenzene

17. 4-methyl-4'-n-propyl-[1,1-biphenyl]

18. 4-isopropylbiphenyl

19. 4-Ethylbiphenyl

20. 4,4'-dimethylbiphenyl

21. 4'-Methyl-4-(E)-pent-3-enyl-biphenyl

22. 1-propyl-4-[(trans,trans)-4'-propyl[1,1'-bicyclohexyl]-4-yl]-benzene

23. 1-Methyl-4-[(trans,trans)-4'-propyl[1,1'-bicyclohexyl]-4-yl] -benzene

24. 1-(4-trans-Pentylcyclohexyl)-4-propylbenzene

25. (trans(trans))-4'-vinyl-4-(4-methylphenyl)bicyclohexyl

26. (trans(trans))-4'-but-3-enyl-4-(4-methylphenyl)-bicyclohexyl

27. (1-methylethyl)-1,1'-biphenyl

This update brought the number of PACT ARN and Hazard assessment substances to 4064.