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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 206-743-9 | CAS number: 372-09-8
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: GLP, guideline study however the purity of the test substance was < 80 %
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 A (Ready Biodegradability: DOC Die Away Test)
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- Cyanoacetic acid
- EC Number:
- 206-743-9
- EC Name:
- Cyanoacetic acid
- Cas Number:
- 372-09-8
- Molecular formula:
- C3H3NO2
- IUPAC Name:
- cyanoacetic acid
- Details on test material:
- - Name of test material (as cited in study report): Cyanessigsaure roh 70%
- Lot/batch No.: 001V28AX10
- Physical state: liquid
- Analytical purity: 71.4 g/100g
- Composition of test material, percentage of components: 71.4 % Cynoacetic acid, 28.6 % water
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Details on inoculum:
- - Source of inoculum/activated sludge (e.g. location, sampling depth, contamination history, procedure): Activated sludge from laboratory wastewater plants treating municipal sewage.
- Concentration of sludge: 30 mg/I dry substance - Duration of test (contact time):
- 17 d
Initial test substance concentrationopen allclose all
- Initial conc.:
- 20 mg/L
- Based on:
- DOC
- Initial conc.:
- 66 mg/L
- Based on:
- test mat.
- Details on study design:
- TEST CONDITIONS
- Composition of medium: 5 ml/vessel inoculum, 13 ml/vessel inorganic medium, 68 ml/vessel stock solution, filled up to a total volume of 1000 ml/vessel with dionised water
- pH: 7.4
TEST SYSTEM
- Number of culture flasks/concentration: 2
CONTROL AND BLANK SYSTEM
- Inoculum blank: yes
- Abiotic sterile control: yes
- Toxicity control: yes
Reference substance
- Reference substance:
- aniline
Results and discussion
% Degradation
- Parameter:
- % degradation (DOC removal)
- Value:
- 90 - 100
- Sampling time:
- 17 d
BOD5 / COD results
- Results with reference substance:
- 90 - 100 % after 14 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.
