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Diss Factsheets
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EC number: 941-661-3 | CAS number: -
- 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
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Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 11th July 2019 to 8th August 2019
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 019
- Report date:
- 2019
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 D (Ready Biodegradability: Closed Bottle Test)
- Deviations:
- no
- GLP compliance:
- yes
Test material
- Reference substance name:
- 3-tert-butyl-1-(3,5-dicarboxyphenyl)-1H-pyrazol-5-aminium chloride
- EC Number:
- 941-661-3
- Molecular formula:
- C15H18ClN3O4
- IUPAC Name:
- 3-tert-butyl-1-(3,5-dicarboxyphenyl)-1H-pyrazol-5-aminium chloride
- Reference substance name:
- Unidentified impurity
- IUPAC Name:
- Unidentified impurity
Constituent 1
impurity 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Details on inoculum:
- Secondary effluent, microorganisms from a domestic waste water treatment plant.
The secondary effluent was supplied from the sewage plant for domestic sewage in Veszprém, Hungary.
The secondary effluent used for this study was allowed to settle approximately for an hour, then the decanted effluent was aerated until use (not later than an hour). - Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- ca. 3 mg/L
- Based on:
- test mat.
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- O2 consumption
Reference substance
- Reference substance:
- benzoic acid, sodium salt
Results and discussion
% Degradation
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- 23.6
- Sampling time:
- 28 d
- Details on results:
- Under the test conditions the percentage biodegradation of S194997 reached a mean of 23.6 % after 28 days based on the ThOD of the test item.
BOD5 / COD results
- Results with reference substance:
- The reference item Sodium benzoate was sufficiently degraded to a mean of 79.2 % after 14 days, and to a mean of 81.7 % after 28 days of incubation, based on ThOD.
In the toxicity control containing both, the test item and the reference item Sodium benzoate, a mean of 45.3 % biodegradation was noted within 14 days and 44.1% biodegradation after 28 days of incubation.
According to the test guidelines the test item can be assumed to be not inhibitory at the applied concentration level of 3.0 mg/L on the secondary effluent microorganisms because degradation was >25 % within 14 days
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- Based on the results of this study, the test item is considered not 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.
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