Regulatory data is for reference only. Always verify with the official regulator before making formulation decisions. Last refreshed: 8/29/2026.

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 III — restrictedEU CosIng IV — colorantASEAN III — restricted

Regulatory status

Source	Status	Annex / Details	Limit / Conditions	Last updated
EU CosIng	restricted	Annex III	0.5 %	—
EU CosIng	colorant	Annex IV	Rinse-off products	—
ASEAN	restricted	Annex III	(b) 0.5 %	—

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, ASEAN. 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 %.
Is 4-((4-Amino-3- methylphenyl)(4- imino-3-methyl- 2,5-cyclohexadien-1- ylidene)methyl)-2- methylphenylamine monohydrochloride (CI 42520) restricted under the ASEAN Cosmetic Directive?: 4-((4-Amino-3- methylphenyl)(4- imino-3-methyl- 2,5-cyclohexadien-1- ylidene)methyl)-2- methylphenylamine monohydrochloride (CI 42520) is restricted under the ASEAN Cosmetic Directive Annex III with a maximum concentration of (b) 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.

Get the full 27-market profile

Source

Status

Annex / Details

Limit / Conditions

Last updated

EU CosIng

restricted

Annex III

0.5 %

—

EU CosIng

colorant

Annex IV

Rinse-off products

—

ASEAN

restricted

Annex III

(b) 0.5 %

—

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 %.

Is 4-((4-Amino-3- methylphenyl)(4- imino-3-methyl- 2,5-cyclohexadien-1- ylidene)methyl)-2- methylphenylamine monohydrochloride (CI 42520) restricted under the ASEAN Cosmetic Directive?

4-((4-Amino-3- methylphenyl)(4- imino-3-methyl- 2,5-cyclohexadien-1- ylidene)methyl)-2- methylphenylamine monohydrochloride (CI 42520) is restricted under the ASEAN Cosmetic Directive Annex III with a maximum concentration of (b) 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.