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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)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2019

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

Constituent 1
Chemical structure
Reference substance name:
4-[(1E,3S)-3-ethenyl-3,7-dimethylocta-1,6-dien-1-yl]phenol
EC Number:
685-515-4
Cas Number:
10309-37-2
Molecular formula:
C18H24O
IUPAC Name:
4-[(1E,3S)-3-ethenyl-3,7-dimethylocta-1,6-dien-1-yl]phenol

Sampling and analysis

Analytical monitoring:
yes

Test solutions

Vehicle:
yes
Remarks:
acetone

Test organisms

Test organisms (species):
Daphnia magna

Study design

Test type:
static
Water media type:
freshwater
Limit test:
no
Total exposure duration:
48 h

Test conditions

Hardness:
184.8 mg/L as CaCO3
Test temperature:
20-21.4
pH:
6.70-7.97
Dissolved oxygen:
8.22-8.90 mg/L
Nominal and measured concentrations:
0.1, 0.2, 0.4, 0.8 and 1.5 mg/L
Reference substance (positive control):
yes
Remarks:
Potassium dichromate

Results and discussion

Effect concentrations
Key result
Duration:
48 h
Dose descriptor:
EC50
Effect conc.:
ca. 0.2 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mobility
Details on results:
Percent immobilisation observed at 48 h was 0, 40, 90, 100 and 100 at 0.1, 0.2 0.4, 0.8 and 1.5 mg/L, respectively. No immobility was observed in any replicate of the control and vehicle control group.

Applicant's summary and conclusion

Validity criteria fulfilled:
yes