Acetonylacetone (2,5-Hexanedione)

INCI: ACETONYLACETONE

CAS Number
110-13-4
Function
Solvent
Safety Rating
POOR

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status prohibited
๐Ÿ‡บ๐Ÿ‡ธ US Status restricted
US Notes Not specifically restricted in cosmetics; however, recognized as a neurotoxic compound by OSHA/NIOSH

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
high
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

2,5-Hexanedione is a neurotoxic metabolite responsible for peripheral neuropathy and cross-links neurofilament proteins causing progressive nerve damage. Classified as Repr. 2 (H361f) under CLP; use in cosmetics should be avoided.

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Concern Level: High

Regulatory Flags

prop65

Frequently Asked Questions

Is Acetonylacetone (2,5-Hexanedione) safe in cosmetics?

2,5-Hexanedione is a neurotoxic metabolite responsible for peripheral neuropathy and cross-links neurofilament proteins causing progressive nerve damage. Classified as Repr. 2 (H361f) under CLP; use in cosmetics should be avoided. The EU classifies Acetonylacetone (2,5-Hexanedione) as "prohibited". Safety rating: POOR.

Is Acetonylacetone (2,5-Hexanedione) allowed in the EU?

Acetonylacetone (2,5-Hexanedione) EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.

What does Acetonylacetone (2,5-Hexanedione) do in cosmetics?

Acetonylacetone (2,5-Hexanedione) functions as: Solvent. It is classified as a cosmetic ingredient in our database. CAS number: 110-13-4.

What is the Margin of Safety for Acetonylacetone (2,5-Hexanedione)?

not established The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.

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