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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Endpoint summary

Administrative data

Description of key information

Additional information

According to regulation (EC) No 1907/2006, Annex XI, paragraph 1.5., substances whose physicochemical, toxicological and ecotoxicological properties are likely to be similar or follow a regular pattern as a result of structural similarity may be considered as a group, or "category" of substances. Environmental effects or environmental fate may be predicted from data for reference substance(s) within the group by interpolation to other substances in the group (read-across approach).

The substance (EC No 238 -063 -3) is the sodium salt of the read-across substance (EC No 202 -180 -8, naphthoic acid). Under environmental conditions the sodium salt will dissociate into the sodium cation and the organic acid. Therefore it is acceptable to predict the environmental effects from data of the free acid.

No acute toxicity was found in fish, daphnids, and algae. A long-term study on daphnids revealed a NOEC of 10.4 mg/L. The inhibition of the degradation activity of activated sludge is not anticipated when introduced in appropriate low concentrations.