2,4-Diaminodiphenylamine

INCI: 2,4-DIAMINODIPHENYLAMINE

CAS Number
136-17-4
Function
Hair dye (oxidative)
Safety Rating
POOR

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status prohibited
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Not specifically authorized; falls under coal tar hair dye caution labeling if used

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

EU-banned; aromatic amine with mutagenicity/genotoxicity concerns; potential cross-sensitization with PPD-group dyes; not to be formulated in any cosmetic product for EU market

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Concern Level: High

Regulatory Flags

potential-allergen eu_banned_cosmetics eu_cosing_listed

Frequently Asked Questions

Is 2,4-Diaminodiphenylamine safe in cosmetics?

EU-banned; aromatic amine with mutagenicity/genotoxicity concerns; potential cross-sensitization with PPD-group dyes; not to be formulated in any cosmetic product for EU market The EU classifies 2,4-Diaminodiphenylamine as "prohibited". Safety rating: POOR.

Is 2,4-Diaminodiphenylamine allowed in the EU?

2,4-Diaminodiphenylamine EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.

What does 2,4-Diaminodiphenylamine do in cosmetics?

2,4-Diaminodiphenylamine functions as: Hair dye (oxidative). It is classified as a cosmetic ingredient in our database. CAS number: 136-17-4.

What is the Margin of Safety for 2,4-Diaminodiphenylamine?

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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