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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:
2019

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 201 (Freshwater Alga and Cyanobacteria, Growth Inhibition Test)
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
Reaction mass of 3',5-diallyl[biphenyl]-2,4'-diol and 5,5'-diallyl[biphenyl]-2,2'-diol
Cas Number:
947686-05-7
Molecular formula:
C18H18O2
IUPAC Name:
Reaction mass of 3',5-diallyl[biphenyl]-2,4'-diol and 5,5'-diallyl[biphenyl]-2,2'-diol
Test material form:
solid

Test organisms

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

Study design

Test type:
not specified
Water media type:
freshwater

Test conditions

Reference substance (positive control):
yes

Results and discussion

Effect concentrationsopen allclose all
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
ca. 1.34 mg/L
Basis for effect:
other: yield
Duration:
72 h
Dose descriptor:
EC10
Effect conc.:
ca. 1.02 mg/L
Basis for effect:
other: yield
Duration:
72 h
Dose descriptor:
LOEC
Effect conc.:
ca. 1.5 mg/L
Basis for effect:
other: yield
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
ca. 1 mg/L
Basis for effect:
other: yield
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
ca. 1.9 mg/L
Basis for effect:
growth rate
Duration:
72 h
Dose descriptor:
EC10
Effect conc.:
ca. 0.86 mg/L
Basis for effect:
growth rate
Duration:
72 h
Dose descriptor:
LOEC
Effect conc.:
ca. 1.5 mg/L
Basis for effect:
growth rate
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
1 mg/L
Basis for effect:
growth rate

Applicant's summary and conclusion