4-hydroxy-4-methylpentan-2-one (CAS No.123-42-2, EC No.204-626-7, INCI: Diacetone Alcohol) is an ingredient listed in the Cosing, with the functions: Fragrance, Solvent.
The substance is currently not regulated by the European Cosmetics Regulation 1223/2009.
It is already listed in Annex VI/603-016-00-1 of the European CLP Regulation 1272/2008, with the following classification:
• Eye Irrit. 2, H319 - Causes serious eye irritation (Specific concentration limit: C ≥ 10%).

France proposes the following classification.

Identification
Index number
• 603-016-00-1
Chemical name
• 4-hydroxy-4-methylpentan-2-one; diacetone alcohol
EC number
• 204-626-7
CAS number
• 123-42-2
Classification
Hazard class and Category code(s)
• Eye Irrit. 2
• Repr. 1B
Hazard statement code(s)
• H319 - Causes serious eye irritation
• H360D - May damage the unborn child
Labelling
Pictogram, Signal word code(s)
• GHS07
• GHS08
• Dgr (Danger)
Hazard statement code(s)
• H360D - May damage the unborn child
Specific concentration Limits, M-factors and ATE
• Eye Irrit. 2; H319: C ≥ 10 %

This consultation is open until 18 October 2024.
If the classification process comes to an end and this substance actually …