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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Additional information

BCF has not been tested because Direct Red 23 (DR23), based on the estimated log Kow, has a low potential for bioaccumulation and/or a low potential to cross biological membranes. The estimated value of DR23’s neutral form was 3.162 L/kg wet-wt, calculated by software EpiSuite 4.1., the suite of physical/chemical property and environmental fate estimation programs developed by the EPA’s Office of Pollution Prevention Toxics and Syracuse Research Corporation (SRC).

The partition coefficient of 0.0019 (R&C, 2012), as reported under 4.7 Partition Coefficient end point, confirms this provisional consideration, leading to the conclusion that DR23 is not expected to be bioaccumulable.