On 3 October 2023, ECHA started a 45 day public commenting period on 10 testing proposals for the following substances:

1. Triphenylphosphine

2. Tetrasodium 2-(4-fluoro-6-(2-(2-sulfonatoethansulfonyl)ethylamino)-1,3,5-triazin-2-ylamino)-5-hydroxy-6-(2-(2-hydroxy-5-sulfonatophenylazo)-4,5-dimethoxyphenylazo)-7-sulfonatonaphthalene-1-sulfonatocuprate(II)

3. Reaction mass of trientine and trientine, mono- and di-propoxylated

4. Reaction mass of (4R)-isopropenyl-1-methylcyclohexene and (4S)-isopropenyl-1-methylcyclohexene and 1-isopropyl-4-methylcyclohexa-1,3-diene and 1-isopropyl-4-methylcyclohexa-1,4-diene and 4-isopropylidene-1-methylcyclohexene

5. Octanoic acid, monoester with glycerol

6. O-(2-ethylhexyl) O,O-tert-pentyl peroxycarbonate

7. Methylsilanetriyl triacetate

8. Methyl acrylate

9. Methyl 4-[[(2,5-dichlorophenyl)amino]carbonyl]-2-[[2-hydroxy-3-[[(2-methoxyphenyl)amino]carbonyl]-1-naphthyl]azo]benzoate – bulk and nano forms

10. Isodecyl methacrylate

11. Fatty acids, tall-oil, compds. with N-[3-(dimethylamino)propyl]tall-oil amides

12. Ethylene dimethacrylate

13. Carboxymethyldimethyl-3-[[(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl)sulphonyl]amino]propylammonium hydroxide

14. A mixture of: bis[4-diphenylsulfoniumphenyl]sulfide-bishexafluoroantimonate; thiophenoxyphenylsulfonium hexafluoroantimonate

15. 5-ethyl-1,3-dioxane-5-methanol

16. 4-[[4-(aminocarbonyl)phenyl]azo]-N-(2-ethoxyphenyl)-3-hydroxynaphthalene-2-carboxamide – nano form

17. 3-ethyloxetane-3-methanol

18. 2-ethylhexyl acrylate

19. 2-ethoxyethyl-2-(4-(2,6-dihydro-2,6-dioxo-7-phenyl-1,5-dioxaindacen-3-yl)phenoxy)acetate

20. 2,6-dimethyloct-7-en-2-ol

21. 2,4-dihydroxybenzophenone

22. 2'-phenylacetohydrazide

23. 12-hydroxystearic acid

24. 11-aminoundecanoic acid

25. 1,3,5-tris[3-(trimethoxysilyl)propyl]-1,3,5-triazine-2,4,6(1H,3H,5H)-trione

26. 1,3,3-trimethyl-N-(2-methylpropylidene)-5-[(2-methylpropylidene)amino]cyclohexanemethylamine

27. 1,2,4-trimethylbenzene