Registration Dossier
Registration Dossier
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EC number: 435-740-7 | CAS number: 94317-64-3
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
EC50 (96 h) = 280 mg/L
Key value for chemical safety assessment
Additional information
One guideline conform algae study conducted according to OECD 201, EU-Method C.3 is available for NBPT (Ward and Boeri, 1990). Algae (Pseudokirchneriella subcapitata, former Selenastrum capricornutum) were tested in a 96 h dose-response toxicity test at nominal concentrations of 0, 75, 125, 250, 500 and 1000 mg/L under static conditions in accordance with GLP-requirements. The resulting EC50(96 h) for algae was 280 mg/L based on nominal concentrations, the NOEC (96 h) was determined to be 75 mg/L. The EC50(72 h) was calculated to be 530 mg/L.
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