Registration Dossier
Registration Dossier
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EC number: 444-000-2 | CAS number: -
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)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- other: Body responsible for the test
- Title:
- Unnamed
- Year:
- 2 002
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: OECD Guidelines for Testing of Chemicals (1984) No. 201, "Alga, Growth Inhibition Test" referenced as Method C.3 of Commission Directive 92/69/EEC (which constitutes Annex V of Council Directive 67/548/EEC).
- GLP compliance:
- yes
Test material
- Reference substance name:
- -
- EC Number:
- 444-000-2
- EC Name:
- -
- Cas Number:
- Not specified
- Molecular formula:
- Not applicable because it is a UVCB substance.
- IUPAC Name:
- 3-[3-(pentanoyloxy)-2,2-bis[(pentanoyloxy)methyl]propoxy]-2,2-bis[(pentanoyloxy)methyl]propyl pentanoate; 3-{3-[(3,5,5-trimethylhexanoyl)oxy]-2,2-bis({[(3,5,5-trimethylhexanoyl)oxy]methyl})propoxy}-2,2-bis({[(3,5,5-trimethylhexanoyl)oxy]methyl})propyl 3,5,5-trimethylhexanoate
Constituent 1
Test solutions
- Vehicle:
- no
- Details on test solutions:
- Identity and concentration of auxiliary solvent for dispersial: No additional solvent used for dispersial.
Test organisms
- Test organisms (species):
- Desmodesmus subspicatus (previous name: Scenedesmus subspicatus)
Study design
- Test type:
- not specified
- Water media type:
- not specified
- Limit test:
- yes
- Total exposure duration:
- 72 h
Results and discussion
Effect concentrationsopen allclose all
- Key result
- Duration:
- 96 h
- Dose descriptor:
- EC50
- Effect conc.:
- > 0.077 mg/L
- Nominal / measured:
- not specified
- Conc. based on:
- not specified
- Basis for effect:
- other: growth inhibition
- Remarks on result:
- not determinable because of methodological limitations
- Remarks:
- 96h EC50 > Limit of solubility
- Key result
- Duration:
- 96 h
- Dose descriptor:
- NOEC
- Effect conc.:
- >= 0.077 mg/L
- Nominal / measured:
- not specified
- Conc. based on:
- not specified
- Basis for effect:
- other: growth inhibition
- Remarks on result:
- not determinable because of methodological limitations
- Remarks:
- 96h NOEC > or = Limit of solubility
- Details on results:
- %Concentration loss over test: 0 ... 0
Any other information on results incl. tables
Comments:
This was a limit test conducted at a nominal concentration of 100 mg/L. Exposure solutions were prepared as for the fish test, see 5.1.01. No significant inhibition of growth was observed. The analytical limit of quatification was higher than for the acute fish and daphnia tests, at 0.18 mg/L. Test substance concentrations were below the analytical limit of quantification at 0 and 72 hours. By comparison with the acute fish and Daphnis tests it can be assumed that measured concentrations were < 0.00613 mg/L.
Since no significant growth inhibition was observed,
96h EC50 > limit of solubility
96h NOEC > or = limit of solubility
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.
