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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways


Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

It is considered scientifically unjustified to perform a hydrolysis study for this substance.

Key value for chemical safety assessment

Additional information

Basic Yellow 28 Methylsulfate is produced in aqueous solution. The test substance is then spray-dried under mild conditions, due to its rather low melting point. Basic Yellow 28 Methylsulfate has a sufficiently high solubility in water. The substance is stable at high temperatures. Before the dyeing process starts the substance is dissolved in hot water / acidic acid at about 80 °C to form the dye acetate (dyeing takes place at 96 to 105 °C at pH 3 to 4.5). It is hence considered scientifically unjustified to do an additional study for abiotic degradation of this substance.