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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

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:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 202 (Daphnia sp. Acute Immobilisation Test)
GLP compliance:
yes (incl. QA statement)

Test material

1
Chemical structure
Reference substance name:
2-ethyl-4-hydroxy-5-methylfuran-3(2H)-one
EC Number:
248-514-6
EC Name:
2-ethyl-4-hydroxy-5-methylfuran-3(2H)-one
Cas Number:
27538-10-9
Molecular formula:
C7H10O3
IUPAC Name:
2-ethyl-4-hydroxy-5-methylfuran-3(2H)-one

Test organisms

Test organisms (species):
Daphnia magna

Study design

Test type:
static
Water media type:
freshwater
Total exposure duration:
48 h

Test conditions

Hardness:
149.3 mg.L-1 of CaCO3
Test temperature:
20.3
pH:
7.8
Dissolved oxygen:
8.1
Conductivity:
447 μS.cm-1
Nominal and measured concentrations:
Nominal concentrations: 100mg.L-1.
Reference substance (positive control):
yes

Results and discussion

Effect concentrations
Key result
Duration:
48 h
Dose descriptor:
EC50
Effect conc.:
> 100 mg/L
Nominal / measured:
nominal
Results with reference substance (positive control):
The 24-hours EC50 value of the reference substance (potassium dichromate) was 1.02 mg.L-1 (95% confidence limits = 0.88 to 1.19 mg.L-1), showing the sensitivity of the test system (ISO 6341 / OECD 202, 2004).

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
The 48-hours EC50 value was not determined because the highest tested concentration of Furanone Homo, 100 mg.L-1, did not cause immobility to the test organisms. Therefore the 48-hours EC50 value of the tested substance is higher than 100 mg.L-1.