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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 264-172-0 | CAS number: 63450-43-1
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 3-methylsulphanilate
- EC Number:
- 264-172-0
- EC Name:
- Sodium 3-methylsulphanilate
- Cas Number:
- 63450-43-1
- Molecular formula:
- C7H9NO3S.Na
- IUPAC Name:
- sodium 3-methylsulphanilate
- Details on test material:
- - Name of test material: sodium 3-methylsulphanilate
- Substance type:organic
- Physical state:solid
Constituent 1
Study design
- Oxygen conditions:
- other: estimated
- 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: Other details not available
- Details on results:
- Half life = 38 days
Any other information on results incl. tables
Media |
Half life (days) |
Percent in Medium |
Water |
38 |
35% |
Applicant's summary and conclusion
- Interpretation of results:
- readily biodegradable
- Conclusions:
- The half life period of sodium 3-methylsulphanilate in water is 38 days and based on this value it can be concluded that the chemical 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 3-methylsulphanilate in water medium is 35%. This coupled with the dilution of water shall result in ready biodegradabililty of the chemical.
- Executive summary:
The half life period of sodium 3-methylsulphanilate in water is 38 days and based on this value it can be concluded that the chemical 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 3-methylsulphanilate in water medium is 35%. This coupled with the dilution of water shall result in ready biodegradabililty of the chemical.
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.
