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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

additional ecotoxicological information
Adequacy of study:
other information

Data source

Reference Type:
other: Body responsible for the test

Materials and methods

Type of study / information:
Test type: Z - other

Results and discussion

Any other information on results incl. tables

Measured data for TBPAAQ and for similar anthraquinone dyes
demonstrate that there is little to no aerobic
biodegradation. However, experimental data indicate that the
primary route of dissipation for anthraquinone dyes is via
anaerobic degradation in aquatic sediments and subsurface
terrestrial soils. Soil surface photolysis has also been
shown to be a significant transformation pathway for

Based on these effective routes of degradation, TBPAAQ is
not likely to persist in the environment.

Annex No.24

Report No.03R-1002

Applicant's summary and conclusion