Registration Dossier
Registration Dossier
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EC number: 250-299-9 | CAS number: 30693-53-9
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- Migrated phrase: estimated by calculation
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
Data source
Reference
- Reference Type:
- other: Prediction model
- Title:
- Bio-degradation in water by Environmental Science Center’s PBT profiler
- Author:
- Environmental Science Center
- Year:
- 2 010
- Bibliographic source:
- PBT profiler, Office of Chemical Safety and Pollution Prevention , U.S. Environmental Protection Agency; version 1.301
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: Modelling database
- Principles of method if other than guideline:
- PBT profiler database.
- GLP compliance:
- no
Test material
- Reference substance name:
- Sodium 2-amino-5-nitrobenzenesulphonate
- EC Number:
- 250-299-9
- EC Name:
- Sodium 2-amino-5-nitrobenzenesulphonate
- Cas Number:
- 30693-53-9
- Molecular formula:
- C6H6N2O5S.Na
- IUPAC Name:
- sodium 2-amino-5-nitrobenzenesulphonate
- Details on test material:
- -Name of the test material: sodium 2-amino-5-nitrobenzenesulphonate
-Molecular formula: C6H6N2O5S.Na
-Molecular weight: 240.1691
Constituent 1
Study design
- Oxygen conditions:
- other: estimation
- Inoculum or test system:
- not specified
- Duration of test (contact time):
- 38 d
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- test mat. analysis
Reference substance
- Reference substance:
- not specified
Results and discussion
% Degradation
- Parameter:
- other: Halflife
- Value:
- 50
- Sampling time:
- 38 d
- Remarks on result:
- other: 38days= 912hrs
- Details on results:
- Half life = 38 days
Any other information on results incl. tables
Media |
Half-life( in days) |
Percent in each medium |
Water |
38 |
35% |
Applicant's summary and conclusion
- Interpretation of results:
- readily biodegradable
- Conclusions:
- The half-life period of the substance sodium 2-amino-5-nitrobenzenesulphonate in water is 38 d and based on this value it can concluded that the substance is not persistent in water medium.
- Executive summary:
The half-life period of the substance sodium 2-amino-5nitro benzene sulphonate in water is 38 d and based on this value it can concluded that the substance is not persistent in water medium since the half-life is less than the threshold of 60 days (to qualify the chemical as persistent). Also the diffusion percentage of sodium 2-amino-5nitro benzene sulphonate in water medium is 35%. This coupled with the dilution of water shall result in ready biodegradability of the chemical.
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