Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Manufacture, use & exposure

Uses by professional workers

Documentsopen allclose all

Uses by professional workers

Contributing activity / technique for the environment
Environmental release category (ERC):
ERC8b: Widespread use of reactive processing aid (no inclusion into or onto article, indoor)
Contributing activity / technique for workers
Process category (PROC):
PROC 0: Other: Apllied to hair with the aid of a brush
Product category used:
PC 39: Cosmetics, personal care products
Sector of end use:
SU 0: Other: Cosmetics
Substance supplied to that use in form of:
in a mixture
Subsequent service life relevant to this use:
yes
Related assessment:
use assessed in an own CSR

Uses by professional workers

Contributing activity / technique for the environment
Environmental release category (ERC):
ERC9a: Widespread use of functional fluid (indoor)
Contributing activity / technique for workers
Process category (PROC):
PROC 0: Other: Detailed information on envisaged uses: used as an oxidative hair coloring agents (precursor)
Product category used:
PC 39: Cosmetics, personal care products
Sector of end use:
SU 0: Other: Public domain
Substance supplied to that use in form of:
in a mixture
Subsequent service life relevant to this use:
no

Uses by professional workers

Contributing activity / technique for the environment
Environmental release category (ERC):
ERC9a: Widespread use of functional fluid (indoor)
Contributing activity / technique for workers
Process category (PROC):
PROC 0: Other: Detailed information on envisaged uses: used as an oxidative hair coloring agents (precursor)
Product category used:
PC 39: Cosmetics, personal care products
Sector of end use:
SU 0: Other: Public domain

Uses by professional workers

Contributing activity / technique for the environmentopen allclose all
Environmental release category (ERC):
ERC8a: Widespread use of non-reactive processing aid (no inclusion into or onto article, indoor)
Environmental release category (ERC):
ERC8b: Widespread use of reactive processing aid (no inclusion into or onto article, indoor)
Contributing activity / technique for workers
Process category (PROC):
PROC 0: Other: Detailed information on envisaged uses: used as an oxidative hair coloring agents (precursor)
Product category used:
PC 39: Cosmetics, personal care products
Sector of end use:
SU 0: Other: Public domain

Uses by professional workers

Contributing activity / technique for the environment
Environmental release category (ERC):
ERC8b: Widespread use of reactive processing aid (no inclusion into or onto article, indoor)
Contributing activity / technique for workers
Process category (PROC):
PROC 0: Other: Apllied to hair with the aid of a brush
Product category used:
PC 39: Cosmetics, personal care products
Sector of end use:
SU 0: Other: Cosmetics
Substance supplied to that use in form of:
in a mixture
Subsequent service life relevant to this use:
yes

Uses by professional workers

Contributing activity / technique for the environmentopen allclose all
Environmental release category (ERC):
ERC8a: Widespread use of non-reactive processing aid (no inclusion into or onto article, indoor)
Environmental release category (ERC):
ERC8b: Widespread use of reactive processing aid (no inclusion into or onto article, indoor)
Contributing activity / technique for workers
Process category (PROC):
PROC 0: Other: Detailed information on envisaged uses: used as an oxidative hair coloring agents (precursor)
Product category used:
PC 39: Cosmetics, personal care products
Sector of end use:
SU 0: Other: Public domain
Substance supplied to that use in form of:
in a mixture
Subsequent service life relevant to this use:
no

Uses by professional workers

Registration/ Notification status for the use:
use registered according to REACH Article 10; total tonnage manufactured/imported <10tonnes/year per registrant
Regulatory status:
use in cosmetics products
Reference
Name:
1-(2-hydroxyethyl)-4,5-diaminopyrazole sulfate
Type of composition:
legal entity composition of the substance
State / form:
solid: bulk
Reference substance:
1-(2-hydroxyethyl)-4,5-diaminopyrazole sulfate
Contributing activity / technique for the environment
Name of activity / technique:
Use leading to inclusion into/onto matrix - hair.
Use of hair dyes for the purpose of dyeing human and synthetic hair by working professionals.
Environmental release category (ERC):
ERC8a: Widespread use of non-reactive processing aid (no inclusion into or onto article, indoor)
Contributing activity / technique for workers
Name of activity / technique:
Product receipt and transfer into appropriate containers.
Mixing of the substance in small containers.
Application by brushing onto the desired material (natural or synthetic hair) for the purpose of inclusion of the mixture into/onto the material.
Process category (PROC):
PROC 0: Other: Use of mixture containing the substance for the purpose of hair dyeing
Product category used:
PC 39: Cosmetics, personal care products
Sector of end use:
SU 0: Other: Personal care services
Substance supplied to that use in form of:
in a mixture
Subsequent service life relevant to this use:
no
Insignificant exposure via the following route:
oral
dermal
eye
inhalatory
Insignificant release via the following route:
water
waste
Pattern of exposure:
occasional