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EC number: 415-430-8 | CAS number: 86403-32-9 CYASORB UV-3853 LIGHT STABILIZER; DASTIB 845; SANDUVOR 845
- 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
Repeated dose toxicity: oral
Administrative data
- Endpoint:
- short-term repeated dose toxicity: oral
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- other: Body responsible for the test
Data source
Reference
- Reference Type:
- other: Body responsible for the test
- Title:
- Unnamed
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 407 (Repeated Dose 28-Day Oral Toxicity Study in Rodents)
- Deviations:
- not specified
- GLP compliance:
- yes
- Limit test:
- no
Test material
- Reference substance name:
- Body responsible for the test
- IUPAC Name:
- Body responsible for the test
Constituent 1
Test animals
- Species:
- rat
- Strain:
- other: Wistar (Han: WIST)
- Sex:
- male/female
Administration / exposure
- Route of administration:
- oral: gavage
- Vehicle:
- corn oil
- Duration of treatment / exposure:
- 28 days
- Frequency of treatment:
- Dosing regime: 7 days/week
- No. of animals per sex per dose:
- Male: 10 animals at 0 mg/kg bw/day
Male: 5 animals at 40 mg/kg bw/day
Male: 5 animals at 200 mg/kg bw/day
Male: 10 animals at 1000 mg/kg bw/day
Female: 10 animals at 0 mg/kg bw/day
Female: 5 animals at 40 mg/kg bw/day
Female: 5 animals at 200 mg/kg bw/day
Female: 10 animals at 1000 mg/kg bw/day
Results and discussion
Effect levels
open allclose all
- Dose descriptor:
- NOAEL
- Effect level:
- 40 mg/kg bw/day (nominal)
- Basis for effect level:
- other: original NCD unit is mg/kg/day
- Dose descriptor:
- NOEL
- Effect level:
- 40 mg/kg bw/day (nominal)
- Basis for effect level:
- other: original NCD unit is mg/kg/day
Target system / organ toxicity
- Critical effects observed:
- not specified
Any other information on results incl. tables
Clinical observations:
In the intermediate and high dose group dose dependend an increased salivation was observed.
The animals of the high dose group showed bright feces from the second week and at the end of the treatment reduced activity, skin turgor and righting reflex. Two females of the high dose group did not show the ear reflex.
The discolouration of the feces was seen in the discovery group till the end of the first week of the recovery period. One male of the low dose group showed a reduced righting reflex at day 15. At the examination on day 26 a reduced righting reflex was observed at one male of the intermediate dose and at two male of the low dose group.
In the males of the high dose group a reduced body weight development was measured at the end of the study. The food consumption of these animals was reduced during the whole application period, in the females of the high dose group a reduced food consumption was observed during the first two weeks of the treatment.
Laboratory findings:
Haematology: In the females of the intermediate and high dose group an increase of the number of thrombocytes and an
enlargement of the prothrombin time in the males in all dose groups (without relation to the doses) and in females of high and low dose group was observed.
Clinical chemistry: In females of the high dose group the values for giucose and triglycerides were increased and in both sexes the protein values were reduced. In the males of the high dose group increased activities for ALAT was determined.
Effects in organs:
On the animal body white areas and redness of the mucosa of the stomach and a swelling of the duodenum septum in all animals of the high dose groups were seen. One animal of the intermedium dose group showed a swollen duodenum too.
Microscopically in the animals of the intermedium and high dose group a hyperplasy of the mucousa in the duodenum was
detected. In the recovery groups no treatment related changes were observed.
Applicant's summary and conclusion
- Conclusions:
- not classified
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