Registration Dossier

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:
other: Body responsible for the test
Title:
Unnamed
Year:
1997

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method C.3 (Algal Inhibition test)
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
425-980-0
EC Name:
-
Cas Number:
129499-78-1
Molecular formula:
C12H18O11
IUPAC Name:
(5R)-5-[(1S)-1,2-dihydroxyethyl]-4-hydroxy-3-{[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-2,5-dihydrofuran-2-one

Test solutions

Details on test solutions:
Identity and concentration of auxiliary solvent for dispersal: Aucun

Test organisms

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

Study design

Limit test:
yes
Total exposure duration:
72 h

Test conditions

Hardness:
24 mg CaCO3/L

Results and discussion

Effect concentrationsopen allclose all
Duration:
72
Dose descriptor:
EC50
Effect conc.:
> 100 mg/L
Nominal / measured:
not specified
Conc. based on:
not specified
Basis for effect:
biomass
Remarks on result:
other: other information is unknown
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
> 100 mg/L
Nominal / measured:
not specified
Conc. based on:
not specified
Basis for effect:
growth rate
Remarks on result:
other: other information is unknown
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
100 mg/L
Nominal / measured:
not specified
Conc. based on:
not specified
Basis for effect:
growth rate
Remarks on result:
other: other information is unknown
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
100 mg/L
Nominal / measured:
not specified
Conc. based on:
not specified
Basis for effect:
biomass
Remarks on result:
other: other information is unknown
Details on results:
%Concentration loss over test: ... 1

Applicant's summary and conclusion