Hydroxyethyl-3,4-Methylenedioxyaniline HCl
AKA “N-(2-Hydroxyethyl)-3, 4-methylenedioxyaniline hydrochloride, 3-Benzodioxol-5-ylamino)ethanol hydrochloride, Ethanol, hydrochloride, COLOREX MDOX, EINECS 303-085-5, hydroxyethyl-3”
Synthetic
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Ingredient Facts
Hydroxyethyl-3,4-methylenedioxyaniline hcl
AKA: N-(2-Hydroxyethyl)-3, 4-methylenedioxyaniline hydrochloride, 3-Benzodioxol-5-ylamino)ethanol hydrochloride, Ethanol, Hydrochloride, COLOREX MDOX, EINECS 303-085-5
Synthetic · Hair Dyeing · EWG: 4
Plant-Derived
Synthetic
Clean
A synthetic colorant that delivers long-lasting, vibrant hair color. Works by bonding with hair to create rich, even tones.
Formula
C9H12ClNO3
Mol. Weight
217.65
CAS #
94158-14-2
Form
Powder
Plant-Derived
Synthetic
Function
Hair Dyeing
Benefits
Colors Hair
Traditional Use
A synthetic hair dye precursor developed in the mid-20th century for use in permanent and semi-permanent hair coloring products. No traditional use; chemically engineered to provide specific color development and permanence in modern hair care.
Skin Types
all-skin-types
Best For
Target
General
Melanin-Rich Skin
Suitable
Pregnancy Safe
No
Safety review of phenoxyethanol when used as a preservati...
B Dréno, T Zuberbier, C Gelmetti, G Gontijo, M Marinovich
Journal of the European Academy of Dermatology and Venereology : JEADV, 2019
Safety Assessment of Diethanolamine and Its Salts as Used...
Monice M Fiume, Bart Heldreth, Wilma F Bergfeld, Donald V Belsito, Ronald A Hill, Curtis D Klaassen + 6 more
International journal of toxicology, 2017
Safety Assessment of Diethanolamine and Its Salts as Used...
Monice M Fiume, Bart Heldreth, Wilma F Bergfeld, Donald V Belsito, Ronald A Hill, Curtis D Klaassen + 6 more
International journal of toxicology, 2017
Safety Assessment of Diethanolamine and Its Salts as Used...
Monice M Fiume, Bart Heldreth, Wilma F Bergfeld, Donald V Belsito, Ronald A Hill, Curtis D Klaassen + 6 more
International journal of toxicology, 2017
Phenoxyethanol Safety Assessment
Cosmetic Ingredient Review Expert Panel
International Journal of Toxicology, 2019
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR