- CAS number:
- 66422-95-5
- INCI:
- 2,4-Diaminophenoxyethanol HCl
- EINECS number:
- 266-357-1
- Functionality
- Hair dye
- Non Governmental organization
- -
A popular blue coupler often used to replace the m-phenylenediamine, giving a more stable blue result. This is approved in Japan, where the sulphate version is not.






