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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 246-073-4 | CAS number: 24199-46-0
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP Guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 995
- Report date:
- 1995
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
- GLP compliance:
- yes
Test material
- Reference substance name:
- 6-methylhept-5-en-2-one
- EC Number:
- 203-816-7
- EC Name:
- 6-methylhept-5-en-2-one
- Cas Number:
- 110-93-0
- IUPAC Name:
- 6-methylhept-5-en-2-one
- Details on test material:
- - Name of test material (as cited in study report): 2-Methylhepten-2-on-6
- Lot/batch No.: 94-1739
- Purity test date: > 98 %;
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic (adaptation not specified)
- Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 85 mg/L
- Based on:
- test mat.
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- O2 consumption
Reference substance
- Reference substance:
- aniline
Results and discussion
% Degradation
- Parameter:
- % degradation (O2 consumption)
- Value:
- ca. 91
- Sampling time:
- 28 d
- Details on results:
- The degradation of the test substance was as follow (CS = control substance aniline; TSx = test substance (7 replicates):
time [day] % of ThOD
CS TS1 TS2 TS3 TS4 TS5 TS6 TS7
0 0 0 0 0 0 0 0 0
3 -2 -1 0 0 2 0 0 0
4 -3 1 5 6 10 3 3 3
5 -2 11 26 27 29 21 16 25
14 80 68 78 78 77 68 70 79
25 85 89 93 98 90 80 92 95
28 85 91 95 99 90 81 93 96
Kinetic of test substance (in %):
< 10 after 4 day(s)
= 74 after 14 day(s)
ca. 91 after 25 day(s)
Kinetic of control substance (in %):
= 85 after 28 day(s)
BOD5 / COD results
- Results with reference substance:
- The biodegradation of the control substance aniline was 85 % within 28 days.
Applicant's summary and conclusion
- Interpretation of results:
- readily biodegradable
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.
