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EC number: 813-358-5 | CAS number: 4886-26-4
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: screening test, other
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 9.7.-7.8.15
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 015
- Report date:
- 2015
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- Version / remarks:
- 1992
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- 1-phenyl-3-(phenylsulfamoyl)urea
- EC Number:
- 813-358-5
- Cas Number:
- 4886-26-4
- Molecular formula:
- C13H13N3O3S
- IUPAC Name:
- 1-phenyl-3-(phenylsulfamoyl)urea
- Test material form:
- solid: particulate/powder
- Details on test material:
- - State of aggregation:
- Particle size distribution:
- Mass median aerodynamic diameter (MMAD):
- Geometric standard deviation (GSD):
- Shape of particles:
- Surface area of particles:
- Crystal structure:
- Coating:
- Surface properties:
- Density:
- Moisture content:
- Residual solvent:
- Activation:
- Stabilisation:
- Other:
Constituent 1
- Specific details on test material used for the study:
- SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material:
- Expiration date of the lot/batch:
- Purity test date:
RADIOLABELLING INFORMATION (if applicable)
- Radiochemical purity:
- Specific activity:
- Locations of the label:
- Expiration date of radiochemical substance:
STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material:
- Stability under test conditions:
- Solubility and stability of the test substance in the solvent/vehicle:
- Reactivity of the test substance with the solvent/vehicle of the cell culture medium:
TREATMENT OF TEST MATERIAL PRIOR TO TESTING
- Treatment of test material prior to testing:
- Preliminary purification step (if any):
- Final dilution of a dissolved solid, stock liquid or gel:
- Final preparation of a solid:
FORM AS APPLIED IN THE TEST (if different from that of starting material)
Due to the insolubility of the test item in water, the test item was added directly into the test vessels. Carrier material was inert PE film. 56.0 – 56.1 mg of the test item was weighed and added into the test vessels.
OTHER SPECIFICS:
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): municipal WWTP Breisgauer Bucht (sampling date 7.7.15)
- Laboratory culture:
- Method of cultivation:
- Storage conditions:
- Storage length:
- Preparation of inoculum for exposure:
- Pretreatment:
- Concentration of sludge: 30 mg dra solids/L
- Initial cell/biomass concentration:
- Water filtered: yes/no
- Type and size of filter used, if any: - Duration of test (contact time):
- 29 d
Initial test substance concentration
- Initial conc.:
- 20 mg/L
- Based on:
- test mat.
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- CO2 evolution
- Details on study design:
- TEST CONDITIONS
- Composition of medium: standard medium
- Additional substrate:
- Solubilising agent (type and concentration if used):
- Test temperature: 20.7 - 21.5 °C
- pH:
- pH adjusted: yes/no
- CEC (meq/100 g):
- Aeration of dilution water:
- Suspended solids concentration: 30 mg/L dry solids
- Continuous darkness: yes/no
- Other:
TEST SYSTEM
- Culturing apparatus: gas wash bottles (2000 mL)
- Number of culture flasks/concentration: 3
- Method used to create aerobic conditions: CO2-purified air was used (NaOH scrubber)
- Method used to create anaerobic conditions: -
- Measuring equipment: TOC-5050A total carbon analyser
- Test performed in closed vessels due to significant volatility of test substance:
- Test performed in open system: no
- Details of trap for CO2 and volatile organics if used: 0.2 M NaOH
- Other:
SAMPLING
- Sampling frequency: day 0, 4, 7, 11, 14, 21, 28
- Sampling method:
- Sterility check if applicable:
- Sample storage before analysis:
- Other:
CONTROL AND BLANK SYSTEM
- Inoculum blank: 3
- Abiotic sterile control:
- Toxicity control: 1
- Other:
STATISTICAL METHODS:
Reference substance
- Reference substance:
- benzoic acid, sodium salt
Results and discussion
% Degradation
- Key result
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 0.5
- Sampling time:
- 28 d
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- under test conditions no biodegradation observed
- Executive summary:
There was no degradation of the test item within the test duration of 28 days. The criterion for ready biodegradation was not met (degradation 60 %, 10-d- window), therefore the test item is not readily biodegradable.
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