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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

Administrative data

Endpoint:
short-term toxicity to aquatic invertebrates
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP study according to EU / OECD guideline.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2013

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method C.2 (Acute Toxicity for Daphnia)
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
sodium 4-(methoxycarbonyl)-5-oxo-2,5-dihydrofuran-3-olate
EC Number:
627-063-2
Cas Number:
1134960-41-0
Molecular formula:
C6H5O5Na
IUPAC Name:
sodium 4-(methoxycarbonyl)-5-oxo-2,5-dihydrofuran-3-olate

Sampling and analysis

Analytical monitoring:
yes

Test solutions

Vehicle:
yes
Details on test solutions:
dissolved in dilution water

Test organisms

Test organisms (species):
Daphnia magna

Study design

Test type:
semi-static
Water media type:
freshwater
Limit test:
yes
Total exposure duration:
48 h

Test conditions

Hardness:
14.6 °dH (= 261 mg/L CaCO3)
Test temperature:
18 - 22 °C
pH:
7.8-7.9
Dissolved oxygen:
92-98 %
Nominal and measured concentrations:
nominal concentration: 100 mg/L
measured: 99.7 % (0h, day 1); 100.7 % (24h, day2); 99.6 % (0h, day 2); 99.4 % (24h, day 2)
Details on test conditions:
The main test was conducted as a static test with the test medium unchanged throughout the duration of the semi static test with daily renewal of test medium.
Reference substance (positive control):
no

Results and discussion

Effect concentrationsopen allclose all
Duration:
24 h
Dose descriptor:
EC50
Effect conc.:
> 100 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mobility
Duration:
48 h
Dose descriptor:
EC50
Effect conc.:
> 100 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mobility
Duration:
24 h
Dose descriptor:
EC0
Effect conc.:
>= 100 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mobility
Duration:
48 h
Dose descriptor:
EC0
Effect conc.:
>= 100 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mobility
Duration:
24 h
Dose descriptor:
EC100
Effect conc.:
> 100 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mobility
Duration:
48 h
Dose descriptor:
EC100
Effect conc.:
> 100 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mobility
Details on results:
No toxic effects against Daphnia were observed at a limit test concentration of 100 mg/L.

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
No toxic effects against Daphnia were observed at a limit test concentration of 100 mg/L.