Solvent Red 24

INCI: CI 26105 (SOLVENT RED 24)

CAS Number
85-83-6
Function
Colorant — oil-soluble azo dye
Safety Rating
POOR

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Delisted (formerly Ext. D\&C Red No. 24, previously permitted for external drugs/cosmetics)

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

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
moderate
Sensitization
moderate

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Delisted by FDA; not EU-approved; potential carcinogenic aromatic amine release upon reductive cleavage; industrial dye only

⚠️
Concern Level: High

Regulatory Flags

colorant eu_banned_cosmetics eu_cosing_listed

Frequently Asked Questions

Is Solvent Red 24 safe in cosmetics?

Delisted by FDA; not EU-approved; potential carcinogenic aromatic amine release upon reductive cleavage; industrial dye only The EU classifies Solvent Red 24 as "permitted". Safety rating: POOR.

Is Solvent Red 24 allowed in the EU?

Solvent Red 24 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Solvent Red 24 do in cosmetics?

Solvent Red 24 functions as: Colorant — oil-soluble azo dye. It is classified as a cosmetic ingredient in our database. CAS number: 85-83-6.

What is the Margin of Safety for Solvent Red 24?

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.

📱

Is Solvent Red 24 in Your Products?

Scan any product label with Piro — our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.

Try Piro Free →

Analyze Your Full Ingredient List

Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for Solvent Red 24 in your formulation.