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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Phototransformation in air :

The atmospheric oxidation half-life of 4,4'-dinitrostilbene-2,2'-disulphonic acid was estimated using the level III multimedia model. It was estimated that the substance is not persistent in air medium as the half life period of 4,4'-dinitrostilbene-2,2'-disulphonic acid in air is only 0.071 days. This indicates that 4,4'-dinitrostilbene-2,2'-disulphonic acid is easily phototransformed in air.


Half life


Percent in Medium




Hydrolysis :

The Hydrolysis rate constant of 4,4'-dinitrostilbene-2,2'-disulphonic acid is estimated to be 0.00000000000000025199999 (25.199999 E-17) cm3/molecule-sec. at half life of the 1.091 Hrs.The estimated half life of the substance indicates that the substance is rapidly hydrolysable.