Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 225-756-0 | CAS number: 5056-17-7
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Jan - Feb 2002
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Test performed according OECD 301 but in a non GLP lab
Cross-reference
- Reason / purpose for cross-reference:
- reference to other study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 002
- Report date:
- 2002
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
- Deviations:
- no
- GLP compliance:
- no
Test material
- Reference substance name:
- (E,E,E)-2,7-dimethylocta-2,4,6-trienedial
- EC Number:
- 225-756-0
- EC Name:
- (E,E,E)-2,7-dimethylocta-2,4,6-trienedial
- Cas Number:
- 5056-17-7
- Molecular formula:
- C10H12O2
- IUPAC Name:
- (E,E,E)-2,7-dimethylocta-2,4,6-trienedial
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 100 mg/L
- Based on:
- ThOD/L
Results and discussion
% Degradation
- Parameter:
- % degradation (O2 consumption)
- Value:
- 93
- Sampling time:
- 28 d
- Details on results:
- Substance is readily biodegradable, 10- day window reached
Any other information on results incl. tables
-
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- readily biodegradable
- Conclusions:
- The substance is readily biodegradable
- Executive summary:
Due to the unsolubility of the substance in water the OECD 301 F was choosen.
100 mg test substance /l was stirred in a closed flask for 28 days. The consumption of the oxigen was determined by measuring the quantity of oxygen required to maintain constant gas volume. The amount of oxygen during the biodegradation of the test substance was expressed as a percentage of ThOD. The substance reached a biodegradation of 93% after 28 days. The 10 day window was achieved. The substance is readily biodegradble.
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.
