Registration Dossier
Registration Dossier
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EC number: 424-240-4 | CAS number: 96478-09-0
Toxicity to aquatic algae and cyanobacteria
Administrative data
- Endpoint:
- toxicity to aquatic algae and cyanobacteria
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- other: All information in this endpoint has been provided by the ECHA using the 12 year rule, this data is not owned by the registrant . The reliability is estimated to be at level 2 at a minimum.
- Rationale for reliability incl. deficiencies:
- other: see 'Remark'
- Remarks:
- All information in this endpoint has been provided by the ECHA using the 12 year rule, data are not owned by the registrant. The reliability is estimated to be at level 2 at a minimum. Therefore the reliability statement below can be used: Study conducted in accordance with generally accepted scientific principles, possibly with incomplete reporting or methodological deficiencies, which do not affect the quality of relevant results.
Data source
Reference
- Reference Type:
- other: Body responsible for the test
- Title:
- Unnamed
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 201 (Alga, Growth Inhibition Test)
- Deviations:
- not specified
- GLP compliance:
- yes
Test material
- Reference substance name:
- -
- EC Number:
- 424-240-4
- EC Name:
- -
- Cas Number:
- 96478-09-0
- Molecular formula:
- C18 H17 N3 O3
- IUPAC Name:
- 2-[3-(2H-1,2,3-benzotriazol-2-yl)-4-hydroxyphenyl]ethyl 2-methylprop-2-enoate
Constituent 1
Sampling and analysis
- Analytical monitoring:
- not specified
- Details on sampling:
- This information was not provided in the migrated SNIF dossier (SNIF # 001-3.0.10-01) provided by ECHA
Test solutions
- Vehicle:
- not specified
- Details on test solutions:
- This information was not provided in the migrated SNIF dossier (SNIF # 001-3.0.10-01) provided by ECHA
Test organisms
- Test organisms (species):
- Raphidocelis subcapitata (previous names: Pseudokirchneriella subcapitata, Selenastrum capricornutum)
- Details on test organisms:
- This information was not provided in the migrated SNIF dossier (SNIF # 001-3.0.10-01) provided by ECHA
Study design
- Test type:
- not specified
- Water media type:
- not specified
- Limit test:
- no
- Total exposure duration:
- 72 h
- Post exposure observation period:
- This information was not provided in the migrated SNIF dossier (SNIF # 001-3.0.10-01) provided by ECHA
Test conditions
- Hardness:
- This information was not provided in the migrated SNIF dossier (SNIF # 001-3.0.10-01) provided by ECHA
- Test temperature:
- This information was not provided in the migrated SNIF dossier (SNIF # 001-3.0.10-01) provided by ECHA
- pH:
- This information was not provided in the migrated SNIF dossier (SNIF # 001-3.0.10-01) provided by ECHA
- Dissolved oxygen:
- This information was not provided in the migrated SNIF dossier (SNIF # 001-3.0.10-01) provided by ECHA
- Salinity:
- This information was not provided in the migrated SNIF dossier (SNIF # 001-3.0.10-01) provided by ECHA
- Nominal and measured concentrations:
- Tested up to 1000 mg/L
- Details on test conditions:
- This information was not provided in the migrated SNIF dossier (SNIF # 001-3.0.10-01) provided by ECHA
- Reference substance (positive control):
- not specified
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Effect conc.:
- > 1 000 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- biomass
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Effect conc.:
- > 1 000 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- growth rate
- Duration:
- 72 h
- Dose descriptor:
- NOEC
- Effect conc.:
- 1 000 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- growth rate
- Duration:
- 72 h
- Dose descriptor:
- NOEC
- Effect conc.:
- 1 000 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- biomass
- Details on results:
- This information was not provided in the migrated SNIF dossier (SNIF # 001-3.0.10-01) provided by ECHA
- Results with reference substance (positive control):
- This information was not provided in the migrated SNIF dossier (SNIF # 001-3.0.10-01) provided by ECHA
- Reported statistics and error estimates:
- This information was not provided in the migrated SNIF dossier (SNIF # 001-3.0.10-01) provided by ECHA
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not specified
- Conclusions:
- Under the conditions of this test, the test material was determined to show no effects to Daphnia Magna and therefore the NOEC concentration has been set at 1000 mg/L which was the maximum concentration that was tested.
- Executive summary:
The study has been conducted according to OECD guideline No. 201. Under the conditions of this test, the test material was determined to show no effects to the Selenastrum capricornutum and therefore the NOEC concentration has been set to 1000 mg/L, which was the maximum concentration used in this study.
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