Registration Dossier

Diss Factsheets

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

Administrative data

Endpoint:
toxicity to aquatic algae and cyanobacteria
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1997

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method C.3 (Algal Inhibition test)
Version / remarks:
OECD 201
Deviations:
no
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
424-210-0
EC Name:
-
Cas Number:
23911-85-5
Molecular formula:
Hill formula: C29 H24 O7 CAS formula: C29 H24 O7
IUPAC Name:
2-benzoyl-5-[3-(4-benzoyl-3-hydroxyphenoxy)-2-hydroxypropoxy]phenol

Test organisms

Test organisms (species):
Desmodesmus subspicatus (previous name: Scenedesmus subspicatus)

Study design

Limit test:
yes
Total exposure duration:
72 h

Test conditions

Test temperature:
Test temperature was maintained at 24°C

Results and discussion

Effect concentrationsopen allclose all
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
> 0.1 mg/L
Basis for effect:
biomass
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
> 0.1 mg/L
Basis for effect:
growth rate
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
>= 0.1 mg/L
Basis for effect:
biomass
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
>= 0.1 mg/L
Basis for effect:
growth rate
Details on results:
%Concentration loss over test: ... 11

Applicant's summary and conclusion

Categories Display