Moderate Cosmetic Ingredient

HC Red No. 11

INCI: HC RED NO. 11

CAS Number
95576-92-4
Function
Hair dyeing - direct (non-reactive) dye providing red/violet shades in semi-permanent formulations
Safety Rating
MODERATE

Regulatory Status

🇪🇺 EU Status restricted
EU Max Conc. 2.0%
🇺🇸 US Status permitted
US Notes Allowed under the coal tar hair dye exemption (FD\&C Act §601(a)). Not subject to color additive batch certification when used solely as a hair dye. Must carry the required caution statement and patch-test directions.

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

HC Red No. 11 is a secondary amine and therefore prone to nitrosation, with potential formation of nitrosamines. Sensitization potential exists; patch testing is recommended. The SCCS noted concerns regarding the purity and chemical characterization of test substances used in the safety dossier.. Nitroaminobenzene derivative; provides warm red tones. Used in combination with HC Red No. 10 as a mixture (often referred to as "Rubinrot Y").

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Concern Level: Moderate

Regulatory Flags

potential-allergen

Frequently Asked Questions

Is HC Red No. 11 safe in cosmetics?

HC Red No. 11 is a secondary amine and therefore prone to nitrosation, with potential formation of nitrosamines. Sensitization potential exists; patch testing is recommended. The SCCS noted concerns regarding the purity and chemical characterization of test substances used in the safety dossier.. Nitroaminobenzene derivative; provides warm red tones. Used in combination with HC Red No. 10 as a mixture (often referred to as "Rubinrot Y"). The EU classifies HC Red No. 11 as "restricted". Safety rating: MODERATE.

Is HC Red No. 11 allowed in the EU?

HC Red No. 11 EU regulatory status: restricted. Maximum allowed concentration: 2.0%. This is based on EU Regulation 1223/2009 and its amendments.

What does HC Red No. 11 do in cosmetics?

HC Red No. 11 functions as: Hair dyeing - direct (non-reactive) dye providing red/violet shades in semi-permanent formulations. It is classified as a cosmetic ingredient in our database. CAS number: 95576-92-4.

What is the Margin of Safety for HC Red No. 11?

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.

Compliance Tools

Check HC Red No. 11 compliance across multiple jurisdictions:

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Ingredient Decoder
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82 Allergen Checker
Check for EU declarable fragrance allergens
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Substance Compliance
Check compliance across 55 jurisdictions
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MoS Calculator
Calculate Margin of Safety using SCCS methodology
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Heavy Metal Limits
Compare limits across jurisdictions

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