On 26 May 2023, the following substances were withdrawn from the Registry of Intentions for Harmonised Classification and Labelling (CLH) proposals:

1. 4-tert-butyltoluene

2. 4-isopropylbenzaldehyde

3. 4-tert-butylbenzaldehyde

4. 3-(p-cumenyl)propionaldehyde

5. Methyl 4-tert-butylbenzoate

This brought the number of withdrawn CLH intentions and submissions to 83.