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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Study period:
11th December to 13th December 2001
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2001
Report date:
2002

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 202 (Daphnia sp. Acute Immobilisation Test)
Version / remarks:
Referenced as Method C.2 of Comission Directive 92/69/EEC
GLP compliance:
yes (incl. QA statement)
Remarks:
UK GLP standards (Schedule 1, Good Laboratory Practice Reculations 1999 (SI 1999/3106)

Test material

Constituent 1
Chemical structure
Reference substance name:
(1R, 4R, 5S) 4-hydroxy-6,6-dimethyl-3-Oxabicyclo[3.1.0]hexan-2-one
EC Number:
619-753-7
Cas Number:
73611-02-6
Molecular formula:
C7H10O3
IUPAC Name:
(1R, 4R, 5S) 4-hydroxy-6,6-dimethyl-3-Oxabicyclo[3.1.0]hexan-2-one

Sampling and analysis

Analytical monitoring:
yes

Test solutions

Vehicle:
yes

Test organisms

Test organisms (species):
Daphnia magna

Study design

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

Results and discussion

Effect concentrations
Duration:
48 h
Dose descriptor:
EC50
Effect conc.:
27 mg/L
Nominal / measured:
nominal
Conc. based on:
dissolved
Basis for effect:
mobility
Remarks on result:
other: 95% CL

Any other information on results incl. tables

No Observed Effect Concentration was 10 mg/L

Applicant's summary and conclusion

Conclusions:
No Observed Effect Concentration was 10 mg/L