HC Yellow No. 15

INCI: HC YELLOW NO. 15

CAS Number
138377-66-9
Function
Semi-permanent (direct) hair dye — nitro dye class
Safety Rating
MODERATE

Regulatory Status

🇪🇺 EU Status prohibited
🇺🇸 US Status permitted
US Notes Permitted — coal-tar hair dye exemption under FD&C Act §601(a)

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Secondary amine nitrosamine formation risk and structural alerts for azo dye class; full toxicology dossier required from supplier for CPSR.

⚠️
Concern Level: High

Frequently Asked Questions

Is HC Yellow No. 15 safe in cosmetics?

Secondary amine nitrosamine formation risk and structural alerts for azo dye class; full toxicology dossier required from supplier for CPSR. The EU classifies HC Yellow No. 15 as "prohibited". Safety rating: MODERATE.

Is HC Yellow No. 15 allowed in the EU?

HC Yellow No. 15 EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.

What does HC Yellow No. 15 do in cosmetics?

HC Yellow No. 15 functions as: Semi-permanent (direct) hair dye — nitro dye class. It is classified as a cosmetic ingredient in our database. CAS number: 138377-66-9.

What is the Margin of Safety for HC Yellow No. 15?

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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