On 6-13 March 2023, the following substances had a Harmonised Classification and Labelling (CLH) proposal submitted:

1. 3,5-dimethylpyrazole

2. 2-pyrrolidone

3. 1H-Pyrazole, 3,4-dimethyl-, phosphate (1:1)

4. 3,4-dimethyl-1H-pyrazole

This brought the number of submitted CLH intentions to 61.