Registration Dossier
Registration Dossier
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EC number: 208-008-8 | CAS number: 505-32-8
Toxicity to microorganisms
Administrative data
- Endpoint:
- activated sludge respiration inhibition testing
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: According to the German national standard test procedures, basic data given.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 988
- Report date:
- 1988
Materials and methods
- Principles of method if other than guideline:
- Oxygen consumption test according to ROBRA which is comparable to the German National Standard, DIN 38412 Part 27 (draft), 1992.
- GLP compliance:
- no
Test material
- Reference substance name:
- 3,7,11,15-tetramethylhexadec-1-en-3-ol
- EC Number:
- 208-008-8
- EC Name:
- 3,7,11,15-tetramethylhexadec-1-en-3-ol
- Cas Number:
- 505-32-8
- Molecular formula:
- C20H40O
- IUPAC Name:
- 3,7,11,15-tetramethylhexadec-1-en-3-ol
- Details on test material:
- - Name of test material (as cited in study report): 3,7,11,15-Tetramethyl-1-hexadecen-3-ol (Isophytol)
Purity: no data
Water solubility: insoluble
Constituent 1
Sampling and analysis
- Analytical monitoring:
- no
Test solutions
- Vehicle:
- yes
- Details on test solutions:
- PREPARATION AND APPLICATION OF TEST SOLUTION (especially for difficult test substances)
- Method: The stock solution of the test substance (nominal 10,000 mg/l) was prepared using 100 mg/l Tween 80 as an emulsifier.
Test organisms
- Test organisms (species):
- Pseudomonas putida
Study design
- Test type:
- static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 30 min
Test conditions
- Nominal and measured concentrations:
- Nominal test concentrations: control, 50, 100 and 1000 mg/l.
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 30 min
- Dose descriptor:
- EC10
- Effect conc.:
- > 10 000 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- inhibition of total respiration
- Remarks:
- respiration rate
- Duration:
- 30 min
- Dose descriptor:
- EC50
- Effect conc.:
- > 10 000 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- inhibition of total respiration
- Remarks:
- respiration rate
- Duration:
- 30 min
- Dose descriptor:
- other: EC90
- Effect conc.:
- > 10 000 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- inhibition of total respiration
- Remarks:
- respiration 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.
