Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint summary

Administrative data

Description of key information

Biotic degradation:
Not degradable


Abiotic degradation:
Rapid degradation with a half-life of 2 days.

Additional information

The substance, by nature of it being a reactive dye is not deemed to be biodegradable. By read across to a structural analogue, Gelb Sulfato displays low ready biodegradability in that it achieved 5% biodegradation in a 28-day study closed bottle test. This indicates that it is unlikely to achieve a half life of less than 40 or 60 days within fresh water attributed to ready biodegradation alone.


In a study according to OECD 309 for ultimate degradation in surface water, at a water temperature of 12°C over 60 days Reactive Yellow 176 Ester showed a fast degradation in aerobic natural water. Transformation of Reactive Yellow 176 started directly after application. About 55 % transformation was reached within 3 days, after 14 days the detected concentration was < 10 % of the applied concentration.