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EC number: 434-230-1 | CAS number: 144413-22-9
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: Guideline study and GLP
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 999
- Report date:
- 1999
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 202 (Daphnia sp. Acute Immobilisation Test)
- Qualifier:
- according to guideline
- Guideline:
- other: Method C2, 92/69/EEC
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- Hydrogenated reaction products of rosin with acrylic acid
- Cas Number:
- 144413-22-9
- IUPAC Name:
- Hydrogenated reaction products of rosin with acrylic acid
Constituent 1
Test solutions
- Details on test solutions:
- Identity and concentration of auxiliary solvent for dispersal: Preliminary solutions were prepared in dimethylformanide at
a concentration of 100mg/10ml solvent. An aliquot of this
solution was then dispersed in reconstituted water to give
the 1mg/l test concentration.
Test organisms
- Test organisms (species):
- Daphnia magna
Study design
- Test type:
- static
- Water media type:
- freshwater
- Total exposure duration:
- 48 h
Test conditions
- Hardness:
- CA 250 mg CaCO3/L
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 48 h
- Dose descriptor:
- NOEC
- Effect conc.:
- > 1 mg/L
- Duration:
- 48 h
- Dose descriptor:
- EC50
- Effect conc.:
- > 1 mg/L
- Duration:
- 48 h
- Dose descriptor:
- EC100
- Effect conc.:
- > 1 mg/L
- Details on results:
- %Concentration loss over test: ... 1
Any other information on results incl. tables
The 48-Hour EC50 for the test material to Daphnia magna based on nominal test concentrations was greater than 1.0 mg/l and correspondingly the No Observed Effect Concentration was equal to 1.0 mg/l. The test concentration of 1.0 mg/l was the highest attainable test concentration due to the limited solubility of the test material in water and auxiliary solvent, and having due regard
for the amount of auxiliary solvent permitted in the test under the OECD Guidelines.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- The acute toxicity of the test material to the freshwater invertebrate Daphnia magna has been investigated and gave a 48-Hour EC50 of greater than 1.0 mg/I. Correspondingly the No Observed Effect Concentration was equal to 1.0 mg/I.
- Executive summary:
The acute toxicity of the test material to the freshwater invertebrate Daphnia magna has been investigated and gave a 48-Hour EC50 of greater than 1.0 mg/I. Correspondingly the No Observed Effect Concentration was equal to 1.0 mg/I.
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