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Diss Factsheets
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EC number: 605-399-0 | CAS number: 165252-70-0
- 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
Link to relevant study record(s)
- Endpoint:
- biodegradation in water: ready biodegradability
- Remarks:
- Biodegration in water: sewage treatment simulation test
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 11/01/2012 - 08/03/2012
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP, Guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.4-D (Determination of the "Ready" Biodegradability - Manometric Respirometry Test)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
- Deviations:
- no
- GLP compliance:
- yes
- Specific details on test material used for the study:
- Radiolabelling: no
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Details on inoculum:
- Aerobic activated sludge, micro organisms from a domestic waste water treatment plant was supplied by the sewage plant Rossdorf, Germany.
- Duration of test (contact time):
- 28 d
- Initial conc.:
- 102 mg/L
- Based on:
- test mat.
- Parameter followed for biodegradation estimation:
- O2 consumption
- Reference substance:
- other: Sodium benzoate
- Remarks:
- as procedure control
- Test performance:
- The test item dinotefuran technical contains nitrogen, therefore the evaluation of biodegradation has to be based ThODNH4 and ThODNO3. The criterion for ready biodegradability under the conditions of a manometric respirometry test is the 10-day window, describing the period between reaching at least 10% degradation and 60% degradation. This period should not exceed 10 days.
The mean biodegradation after 28 days of dinotefuran technical was 0% (ThODNH4) and (ThODNO3); the 10 day window criterion was not passed.
Therefore, dinotefuran technical is considered not to be readily biodegradable.
The reference item sodium benzoate was sufficiently degraded to 85% after 14 days and after 28 days of incubation, thus confirming the suitability of the aerobic activated sludge inoculum used.
In the toxicity control containing both, the test item and the reference item sodium benzoate, 52% (ThODNH4) and 35% (ThODNO3) biodegradation was noted within 14 days and 50% (ThODNH4) and 34% (ThODNO3) biodegradation after 28 days of incubation. Thus, the test item can be assumed to be not inhibitory to the aerobic activated sludge micro-organisms.
Identity of transformation product: No. Evaporation of parent compound, volatile metabolites, and resiudes were not measured. - Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- 0
- Sampling time:
- 28 d
- Details on results:
- The test item dinotefuran technical contains nitrogen, therefore the evaluation of biodegradation has to be based ThODNH4 and ThODNO3. The criterion for ready biodegradability under the conditions of a manometric respirometry test is the 10-day window, describing the period between reaching at least 10% degradation and 60% degradation. This period should not exceed 10 days.
The mean biodegradation after 28 days of dinotefuran technical was 0% (ThODNH4) and (ThODNO3); the 10 day window criterion was not passed.
Therefore, dinotefuran technical is considered not to be readily biodegradable.
Results with reference substance
The reference item sodium benzoate was sufficiently degraded to 85% after 14 days and after 28 days of incubation, thus confirming the suitability of the aerobic activated sludge inoculum used. - Validity criteria fulfilled:
- yes
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- The degradation rate of dinotefuran technical did not reach 60% within the 10-day window and after 28 days of incubation.
Therefore, dinotefuran technical is considered not to be readily biodegradable.
The percentage biodegradation of the reference item confirms the suitability of the used aerobic activated sludge inoculum.
According to the validity criteria of OECD test guideline 301, the test item can be assumed to be not inhibitory on the aerobic activated sludge micro organisms because degradation was > 25% within 14 days.
Reference
Description of key information
Dinotefuran is considered not to be readily biodegradable
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
- Type of water:
- other: activated sludge
Additional information
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.
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