Registration Dossier
Registration Dossier
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EC number: 943-705-7 | CAS number: 947686-05-7
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:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 019
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 201 (Freshwater Alga and Cyanobacteria, Growth Inhibition Test)
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- 3',5-bis(prop-2-en-1-yl)-[1,1'-biphenyl]-2,4'-diol; 5,5'-bis(prop-2-en-1-yl)-[1,1'-biphenyl]-2,2'-diol
- Cas Number:
- 947686-05-7
- Molecular formula:
- C18H18O2
- IUPAC Name:
- 3',5-bis(prop-2-en-1-yl)-[1,1'-biphenyl]-2,4'-diol; 5,5'-bis(prop-2-en-1-yl)-[1,1'-biphenyl]-2,2'-diol
- Test material form:
- solid
Constituent 1
Test organisms
- Test organisms (species):
- Desmodesmus subspicatus (previous name: Scenedesmus subspicatus)
Study design
- Test type:
- not specified
- Water media type:
- freshwater
Test conditions
- Reference substance (positive control):
- yes
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Effect conc.:
- ca. 1.34 mg/L
- Basis for effect:
- other: yield
- Duration:
- 72 h
- Dose descriptor:
- EC10
- Effect conc.:
- ca. 1.02 mg/L
- Basis for effect:
- other: yield
- Duration:
- 72 h
- Dose descriptor:
- LOEC
- Effect conc.:
- ca. 1.5 mg/L
- Basis for effect:
- other: yield
- Duration:
- 72 h
- Dose descriptor:
- NOEC
- Effect conc.:
- ca. 1 mg/L
- Basis for effect:
- other: yield
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Effect conc.:
- ca. 1.9 mg/L
- Basis for effect:
- growth rate
- Duration:
- 72 h
- Dose descriptor:
- EC10
- Effect conc.:
- ca. 0.86 mg/L
- Basis for effect:
- growth rate
- Duration:
- 72 h
- Dose descriptor:
- LOEC
- Effect conc.:
- ca. 1.5 mg/L
- Basis for effect:
- growth rate
- Duration:
- 72 h
- Dose descriptor:
- NOEC
- Effect conc.:
- 1 mg/L
- Basis for effect:
- growth rate
Applicant's summary and conclusion
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
