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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicity to microorganisms

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

Pseudomonas putida: TT (16hr): 650mg/l
Entosiphon TT (72hr): 202mg/l
Uronema TT (48hr) 1620mg/l
Chilomona TT (48hr) 3248mg/l
Photobacterium phosphoreum: EC50 (5min) 1180, EC50 (2hr) 5870.
Pseudomonas fluorescens: EC50 (2hr) 7400, EC50 (5 mins) 1500 mg/l

Key value for chemical safety assessment

EC10 or NOEC for microorganisms:
650 mg/L

Additional information

From a variety of studies where a weight of evidence approach is used, the lowest reported toxicity values was a 72-hr toxicity threshold (EC5) of 202 mg/L for ethyl acetate in Entosiphon sulcatum. Results from ciliated protozoa can be used to predict toxicity in a WWTP, but Entisiphon does not fall into this category. In the more commonly tested bacterium Pseudomonas putida, the lowest reported NOEC (a 16-hr EC3) was 650 mg/L. Results for all other protozoa and bacterium were in excess of this value.