Is 3-(2-Hydroxyethyl)-p- phenylenediammonium sulphate restricted in EU cosmetics?

3-(2-Hydroxyethyl)-p- phenylenediammonium sulphate is restricted in EU cosmetics under Annex III.

Is 3-(2-Hydroxyethyl)-p- phenylenediammonium sulphate restricted under the ASEAN Cosmetic Directive?

3-(2-Hydroxyethyl)-p- phenylenediammonium sulphate is restricted under the ASEAN Cosmetic Directive Annex III.

What is the CAS number for 3-(2-Hydroxyethyl)-p- phenylenediammonium sulphate?

The CAS number for 3-(2-Hydroxyethyl)-p- phenylenediammonium sulphate is 93841-25-9.

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

Ingredients/3-(2-Hydroxyethyl)-p- phenylenediammonium sulphate

3-(2-Hydroxyethyl)-p- phenylenediammonium sulphateCAS 93841-25-9

EU CosIng III — restrictedASEAN III — restricted

Regulatory status

Source	Status	Annex / Details	Limit / Conditions	Last updated
EU CosIng	restricted	Annex III		—
ASEAN	restricted	Annex III	The mixing ratio must be printed on the label. Hair colorants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16. Temporary “black henna” tattoos may increase your risk of allergy. Do not colour your hair if: - you have a rash on your face or sensitive, irritated and damaged scalp, - you have ever experienced any reaction after colouring your hair, - you have experienced a reaction to a temporary “black henna” tattoo in the past Do not use to dye eyelashes or eyebrows Indonesia only: Rinse immediately if product comes into contact with eyes.	—

What this means

3-(2-Hydroxyethyl)-p- phenylenediammonium sulphate has regulatory signals in EU CosIng, ASEAN. Review the source links above for the official conditions and latest updates.

Common questions

Is 3-(2-Hydroxyethyl)-p- phenylenediammonium sulphate restricted in EU cosmetics?: 3-(2-Hydroxyethyl)-p- phenylenediammonium sulphate is restricted in EU cosmetics under Annex III.
Is 3-(2-Hydroxyethyl)-p- phenylenediammonium sulphate restricted under the ASEAN Cosmetic Directive?: 3-(2-Hydroxyethyl)-p- phenylenediammonium sulphate is restricted under the ASEAN Cosmetic Directive Annex III.
What is the CAS number for 3-(2-Hydroxyethyl)-p- phenylenediammonium sulphate?: The CAS number for 3-(2-Hydroxyethyl)-p- phenylenediammonium sulphate is 93841-25-9.

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