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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

Experimental results for the biodegradation of the Benzenesulfonic acid, mono-C20-24 (even)-sec-alkyl derivs., para-, sodium salts (generic name: C20 -24 sodium sulfonate) are not available. However, biodegradation studies were performed with three structural analogues of the C20 -24 sodium sulfonate.

Referring to the key study, calcium sulfonate read-across substance (Analogue of CAS 70024-69-0) attained 8 % degradation during the test duration of 28 days (OECD Guideline 301D, Douglas, 1989). With regard to the supporting studies, Sanitised, O. (1996) determined 8.6 % degradation after 28 days (OECD Guideline 301F) for the calcium sulfonate read-across substance (CAS 61789 -86 -4) while 9.1 % degradation was attained for the calcium sulfonate read-across substance (CAS 68783-96-0) after 28 days (OECD Guideline 301B, Sanitised, P., 1995).

Based on the results of these studies, the Benzenesulfonic acid, mono-C20-24 (even)-sec-alkyl derivs., para-, sodium salts is not expected to be readily biodegradable.