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Diss Factsheets
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EC number: 951-619-6 | 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
Skin irritation / corrosion
Administrative data
- Endpoint:
- skin irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Dec 16, 2019 - Apr 20, 2020
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Justification for type of information:
- The study was performed for registration outside EU. Official chemical regulation requires to perform this in vivo assay.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 020
- Report date:
- 2020
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- N-{[1,1'-biphenyl]-2-yl}-N-(4-{2',7'-di-tert-butyl-9,9'-spirobi[fluoren]-7-yl}phenyl)-9,9-dimethyl-9H-fluoren-2-amine
- EC Number:
- 951-619-6
- Molecular formula:
- C66H57N
- IUPAC Name:
- N-{[1,1'-biphenyl]-2-yl}-N-(4-{2',7'-di-tert-butyl-9,9'-spirobi[fluoren]-7-yl}phenyl)-9,9-dimethyl-9H-fluoren-2-amine
- Test material form:
- solid: bulk
Constituent 1
Test animals
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
Species: Rabbit
Strain: New Zealand White
Condition: SPF-Quality
Source: Charles River France, L’Arbresle, France
Number of Animals: 3 Males
Age at the Initiation of Dosing: A young adult animal (approximately 15-17 weeks old) was selected.
Weight at the Initiation of Dosing: 2938 to 3303 g
Acclimatisation: 5 days
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 19- 20 °C
- Humidity (%): 46 to 56%.
- Air changes (per hr): 10 or greater
- Photoperiod (hrs dark / hrs light): 12/12 hours
Test system
- Type of coverage:
- semiocclusive
- Preparation of test site:
- clipped
- Vehicle:
- unchanged (no vehicle)
- Controls:
- not required
- Amount / concentration applied:
- 0.5 g
- Duration of treatment / exposure:
- 4 h
- Observation period:
- 14 days
- Number of animals:
- 1 female
- Details on study design:
- TEST SITE
Approximately 24 hours before dosing, the dorsal fur was clipped with an electric clipper, exposing an area of approximately 150 square centimeters (10x15 cm). To facilitate scoring,
the treated skin area was re-clipped at least 3 hours before the observations.
The animal was treated by dermal application of 0.5 grams of the test item. The test item was applied to the skin of one flank, using a metalline patch of 2x3 cm. The patch was mounted on Micropore tape, which was wrapped around the abdomen and secured with Coban elastic bandage. Four hours after the application, the dressing was removed and the skin cleaned of residual test item using tap water.
SCORING SYSTEM:
- Method of calculation:
The skin reactions were assessed at approximately 1, 24, 48 and 72 hours and 7 and 14 days after the removal of the dressings and test item. The irritation scores and a description of all other (local) effects were recorded. Adjacent areas of the untreated skin of the animal served as control.
The irritation was assessed according to the following numerical scoring system. At each observation, the highest scores given were recorded:
Erythema and eschar formation:
No erythema .............................................................................................................................................................. 0
Very slight erythema (barely perceptible) ................................................................................................................. 1
Well-defined erythema ............................................................................................................................................... 2
Moderate to severe erythema..................................................................................................................................... 3
Severe erythema (beef redness) * ............................................................................................................................ 4
*. Where signs of necrosis or corrosion (injuries in depth) prevent erythema scoring, the maximum grade for erythema (= 4) is given.
Oedema formation:
No oedema.................................................................................................................................................................. 0
Very slight oedema (barely perceptible)..................................................................................................................... 1
Slight oedema (edges of area well-defined by definite raising)................................................................................. 2
Moderate oedema (raised approximately 1 millimeter)................................................................................................ 3
Severe oedema (raised more than 1 millimeter and extending beyond the area of exposure) ................................. 4
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- erythema score
- Basis:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 0
- Irritation parameter:
- edema score
- Basis:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 0
- Irritant / corrosive response data:
- No skin irritation was caused by 4 hours exposure to the test material.
- Other effects:
- No signs of systemic toxicity were observed in the animal during the test period and no mortality occurred.
Applicant's summary and conclusion
- Interpretation of results:
- GHS criteria not met
- Conclusions:
- Based on these results the test material does not have to be classified and has no obligatory labelling requirement for skin irritation according to the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) of the United Nations (2017) (including all amendments) and Regulation (EC) No 1272/2008 on classification, labelling and packaging of items and mixtures (including all amendments).
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