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EC number: 423-070-8 | CAS number: 58890-25-8
- 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
Eye irritation
Administrative data
- Endpoint:
- eye irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 07 November, 1994 - 10 November, 1994
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: The study has been performed according to OECD and/or EC guidelines and according to GLP principles.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 995
- Report date:
- 1995
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 405 (Acute Eye Irritation / Corrosion)
- Version / remarks:
- (1987)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion)
- Version / remarks:
- (1992)
- Deviations:
- no
- GLP compliance:
- yes
Test material
- Reference substance name:
- -
- EC Number:
- 423-070-8
- EC Name:
- -
- Cas Number:
- 58890-25-8
- Molecular formula:
- not applicable (reaction mass)
- IUPAC Name:
- 3-cyclohexyl-1-[4-({4-[(cyclohexylcarbamoyl)amino]phenyl}methyl)phenyl]urea; 3-cyclohexyl-1-[4-({4-[(phenylcarbamoyl)amino]phenyl}methyl)phenyl]urea; 3-phenyl-1-[4-({4-[(phenylcarbamoyl)amino]phenyl}methyl)phenyl]urea
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
- Details on test material:
- - Name of test material (as cited in study report): KY-RB
- Description: White powder
Constituent 1
Test animals / tissue source
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or tissues and environmental conditions:
- TEST ANIMALS
- Source: Broekman Institute, Someren, The Netherlands
- Age at study initiation: Approx. 9 weeks
- Weight at study initiation: 1589 - 2106 g
- Housing: Individually housed in labelled cages with perforated floors.
- Diet: Standard laboratory rabbit diet (LKK-20, pellet diameter 4mm, Hope Farms, Woerden, The Netherlands) approx. 100 g per day
- Water: Free access to tap-water diluted with decalcified water
- Acclimation period: At least 5 days
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 21
- Humidity (%): 50
- Air changes (per hr): approx. 15
- Photoperiod (hrs dark / hrs light): 12/12
Test system
- Vehicle:
- unchanged (no vehicle)
- Controls:
- other: One eye of each animal remained untreated and served as the reference control.
- Amount / concentration applied:
- TEST MATERIAL- Amount applied: 26 ± 2 mg (a volume of approximately 0.1 mL)
- Duration of treatment / exposure:
- Single instillation on Day 1.
- Observation period (in vivo):
- The eyes of each animal were examined approximately 1, 24, 48 and 72 hours after instillation of the test substance.
- Number of animals or in vitro replicates:
- 3 males
- Details on study design:
- TREATMENT
On test day 1, the test substance was instilled in the conjunctival sac of one eye of each animal after gently pulling the lower lid away from the eyeball. The lids were then gently held together for about one second to prevent loss of the test substance.
REMOVAL OF TEST SUBSTANCE
-Washing: No
OBSERVATIONS
- Mortality/Viability: Twice daily.
- Toxicity: At least once daily.
- Body Weight: Day of treatment (prior to instillation).
- Necropsy: not performed.
- Irritation:
The eyes of each animal were examined approximately 1, 24, 48 and 72 hours after instillation of the test substance.
The irritation scores and a description of all other (local) effects were recorded. The irritation was assessed according to OECD 405.
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- cornea opacity score
- Remarks:
- (opacity)
- Basis:
- mean
- Remarks:
- animal #1, #2 and #3
- Time point:
- other: 24, 48 and 72 hrs.
- Score:
- 0
- Max. score:
- 4
- Irritation parameter:
- iris score
- Basis:
- mean
- Remarks:
- animal #1, #2 and #3
- Time point:
- other: 24, 48 and 72 hrs.
- Score:
- 0
- Max. score:
- 2
- Irritation parameter:
- conjunctivae score
- Remarks:
- (redness)
- Basis:
- mean
- Remarks:
- animal #1 and #2
- Time point:
- other: 24, 48 and 72 hrs.
- Score:
- 0.33
- Max. score:
- 3
- Reversibility:
- fully reversible within: 48 hours
- Irritation parameter:
- conjunctivae score
- Remarks:
- (redness)
- Basis:
- animal #3
- Remarks:
- (mean)
- Time point:
- other: 24, 48 and 72 hrs.
- Score:
- 0.66
- Max. score:
- 3
- Reversibility:
- fully reversible within: 72 hours
- Irritation parameter:
- chemosis score
- Basis:
- mean
- Remarks:
- animal #1, #2 and #3
- Time point:
- other: 24, 48 and 72 hrs.
- Score:
- 0
- Max. score:
- 4
- Irritant / corrosive response data:
- Slight redness of the conjuctival tissues was observed in all animals. The irritation had resolved within 48 hours in two animals and within 72 hours after instillation in the third animal. There was no evidence of ocular corrosion.
Treatment of the eyes with 2% fluorescein, 24 hours after test substance instillation revealed no corneal epithelial damage in any of the animals. - Other effects:
- Remnants of the test substance were noted on the outside of the eyelids in one animal during the observation period.
No symptoms of systemic toxicity were observed in the animals during the test period and no mortality occurred.
Applicant's summary and conclusion
- Interpretation of results:
- not classified
- Remarks:
- Migrated information Criteria used for interpretation of results: EU
- Conclusions:
- In an eye irritation study with KY-RB with male rabbits, performed according to OECD 405 test guideline and GLP principles, limited irritation was observed.
- Executive summary:
KY-RB was tested in an eye irritation study with male rabbits, performed according to OECD 405 test guideline and GLP principles.
No symptoms of systemic toxicity were observed in the animals during the test period and no mortality occurred.
Slight redness of the conjuctival tissues was observed in all animals. The irritation had resolved within 48 hours in two animals and within 72 hours after instillation in the third animal. There was no evidence of ocular corrosion.
Based on the results, KY-RB does not have to be classified for eye irritation according to Regulation (EC) No 1272/2008.
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