Regulatory data is for reference only. Always verify with the official regulator before making formulation decisions. Last refreshed: 7/12/2026.
Ingredients/4-((4-Amino-3- methylphenyl)(4- imino-3-methyl- 2,5-cyclohexadien-1- ylidene)methyl)-2- methylphenylamine monohydrochloride (CI 42520)
4-((4-Amino-3- methylphenyl)(4- imino-3-methyl- 2,5-cyclohexadien-1- ylidene)methyl)-2- methylphenylamine monohydrochloride (CI 42520)CAS 3248-91-7
EU CosIng Annex III — restrictedEU CosIng Annex IV — colorant
Regulatory status
What this means
4-((4-Amino-3- methylphenyl)(4- imino-3-methyl- 2,5-cyclohexadien-1- ylidene)methyl)-2- methylphenylamine monohydrochloride (CI 42520) has regulatory signals in EU CosIng and EU CosIng. Review the source links above for the official conditions and latest updates.
Common questions
- Is 4-((4-Amino-3- methylphenyl)(4- imino-3-methyl- 2,5-cyclohexadien-1- ylidene)methyl)-2- methylphenylamine monohydrochloride (CI 42520) restricted in EU cosmetics?
- 4-((4-Amino-3- methylphenyl)(4- imino-3-methyl- 2,5-cyclohexadien-1- ylidene)methyl)-2- methylphenylamine monohydrochloride (CI 42520) is restricted in EU cosmetics under Annex III with a maximum concentration of 0.5 %.
- What is the CAS number for 4-((4-Amino-3- methylphenyl)(4- imino-3-methyl- 2,5-cyclohexadien-1- ylidene)methyl)-2- methylphenylamine monohydrochloride (CI 42520)?
- The CAS number for 4-((4-Amino-3- methylphenyl)(4- imino-3-methyl- 2,5-cyclohexadien-1- ylidene)methyl)-2- methylphenylamine monohydrochloride (CI 42520) is 3248-91-7.
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