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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Bioaccumulation :

Bioaccumulation in Aquatic / Sediment :

Bioaccumulation is the process by which the chemical concentration in an aquatic organism achieves a level that exceeds that in water as a result of chemical uptake through all possible routes of exposure. The relationship between Bioaccumulation and Bioconcentration is that, chemicals that have potential to bioconcentrate also have potential to bioaccumulate. Bioaccumulation is closely related to bioconcentration factor (BCF)

The estimated bioconcentration factor (BCF) for Benzidine-2,2’-disulphonic acid is 1.129889.which does not exceed the bioconcentration threshold of 1000.

Other Weight of evidence studies also indicates that the bioconcentration factor to be 3.2 and 3.162 which does not exceed the bioconcentration threshold of 1000.

Sr no

Endpoint name

Value

Species

1

BCF

1.129889

Cyprinus carpio

2

BCF

3.2

Fish

3

BCF

3.162

Fish

From this it is concluded that Benzidine-2,2’-disulphonic acid is not expected to bioaccumulate in the food chain.