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EC number: 613-145-5 | CAS number: 63139-21-9
- 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:
- 2007-04-12 to 2008-02-14
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 008
- Report date:
- 2008
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 405 (Acute Eye Irritation / Corrosion)
- Deviations:
- no
- GLP compliance:
- yes
Test material
- Reference substance name:
- (4-ethylphenyl)boronic acid
- EC Number:
- 613-145-5
- Cas Number:
- 63139-21-9
- Molecular formula:
- C8 H11 B O2
- IUPAC Name:
- (4-ethylphenyl)boronic acid
- Test material form:
- solid
Constituent 1
Test animals / tissue source
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or tissues and environmental conditions:
- TEST ANIMALS
- Source: Charles River Wiga GmbH, Kißlegg
- Age at study initiation: Approx. 17 and 47 weeks
- Weight at study initiation: 3.79 kg
- Housing: Separately in a special rabbit cage (manufacturer: Becker; type K.99/30 KU) placed on mobile racks.
- Diet: Ad libitum
- Water: Ad libitum
- Acclimation period: More than 7 days
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 15 to 18
- Humidity (%): 42 to 70
- Photoperiod (hrs dark / hrs light): 12/12
IN-LIFE DATES: From: Day 0 To: Day 14
Test system
- Vehicle:
- unchanged (no vehicle)
- Controls:
- yes, concurrent no treatment
- Amount / concentration applied:
- TEST MATERIAL
- Amount applied: 0.1 g of the test material - Duration of treatment / exposure:
- 14 days
- Observation period (in vivo):
- Day 0 to day 14
- Number of animals or in vitro replicates:
- 2 females
- Details on study design:
- REMOVAL OF TEST SUBSTANCE
- Time after start of exposure: The test substance remained in the eyes of the rabbits up to the end of the observation period.
SCORING SYSTEM: See table 1 in section "Any other information on materials and methods incl. tables".
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- other: discharge
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 1.66
- Max. score:
- 3
- Reversibility:
- fully reversible within: 5 days
- Remarks on result:
- positive indication of irritation
- Irritation parameter:
- other: discharge
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 2.33
- Max. score:
- 3
- Reversibility:
- fully reversible within: 5 days
- Remarks on result:
- positive indication of irritation
- Irritation parameter:
- iris score
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 2
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- iris score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 1
- Max. score:
- 2
- Reversibility:
- fully reversible within: 6 days
- Remarks on result:
- positive indication of irritation
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 2
- Max. score:
- 3
- Reversibility:
- fully reversible within: 8 days
- Remarks on result:
- positive indication of irritation
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 1
- Max. score:
- 3
- Reversibility:
- fully reversible within: 7 days
- Remarks on result:
- positive indication of irritation
- Irritation parameter:
- chemosis score
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 1.33
- Max. score:
- 4
- Reversibility:
- fully reversible within: 5 days
- Remarks on result:
- positive indication of irritation
- Irritation parameter:
- chemosis score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 1
- Max. score:
- 4
- Reversibility:
- fully reversible within: 5 days
- Remarks on result:
- positive indication of irritation
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 1
- Max. score:
- 4
- Reversibility:
- fully reversible within: 8 days
- Remarks on result:
- positive indication of irritation
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 1.33
- Max. score:
- 4
- Reversibility:
- fully reversible within: 6 days
- Remarks on result:
- positive indication of irritation
- Irritant / corrosive response data:
- The cornea developed diffuse areas of opacity (scores 1 and 2) from the first investigation up to day 5 and 7 of the experimental part. At the iris signs of irritation were observed (score 1) from day 2 up to day 5 in one animal. The conjunctivae showed redness (scores 1 and 2) from the first investigation up to day 6 and 7. Chemosis (score 1 and 2) was seen up to experimental day 4. Furthermore, discharge was observed 1 hour after instillation of the test material up to day 4 of the experimental part (scores 1 and 4). The untreated eye was unchanged.
- Other effects:
- - Lesions and clinical observations: No signs of pain were observed immediately after instillation.
Any other information on results incl. tables
Table 1: Body weights
Animal No. |
Body weight in kg on experimental day |
Body weight gain |
||||
1 |
5 |
8 |
11 |
15 |
dayl to 15 |
|
18 |
3.40 |
3.36 |
3.42 |
3.46 |
3.48 |
+ 0.08 |
16 |
4.18 |
4.21 |
4.25 |
4.25 |
4.23 |
+ 0.05 |
Mean |
3.79 |
3.79 |
3.84 |
3.86 |
3.86 |
+ 0.07 |
Table 2: Eye alterations, mean score 24, 48 and 72 hours oft wo rabbits
|
Mean score (24, 48 and 72 hours) |
Maximum value (24, 48 and 72 hours) |
||
Animal No |
1 |
2 |
1 |
2 |
Cornea |
1.33 |
1 |
2 |
1 |
Iris
|
1 |
0 |
1 |
0 |
Conjunctivae |
1 |
2 |
1 |
2 |
Chemosis |
1 |
1.33 |
1 |
2 |
Applicant's summary and conclusion
- Interpretation of results:
- Category 2 (irritating to eyes) based on GHS criteria
- Conclusions:
- In this in vivo eye irritation study according to OECD guideline 405, the test item showed eye irritating effects and is thus categorized as irritating to the eye “UN GHS Category 2”.
- Executive summary:
The test item was tested for its eye irritating properties. Prior to testing, the hen's egg test on the chorioallantoic membrane was performed and no irritating potential could be detected. The test for primary eye irritation was performed initially with one animal and followed by the confirmatory test with one further animal according to OECD guideline 405. For the test of primary eye irritation, the test material was applied into the conjunctival sac of rabbits. The first examination of the eyes followed 1 hour after instillation. The other examinations of the eyes were performed daily for a further 14 days. Two rabbits were used in this study. No signs of pain were observed immediately after instillation. Diffuse areas of opacity were seen at the cornea 1 hour after instillation up to day 5 and 7 of the experimental part. The iris showed signs of irritation from day 2 up to day 5 in one animal. The conjunctivae were reddened from the first investigation up to day 6 and 7. Chemosis was observed in both animals up to experimental day 4. The individual scores after 24/48/72 hours were 0 (animal 1) and 2 (animal 2) for iris irritation, 2 (animal 1) and 1 (animal 2) for reddening of the conjunctivae, 1.33 (animal 1) and 1 (animal 2) for chemosis and 1 (animal 1) and 1.33 (animal 2) for corneal opacity. The untreated eyes were unchanged. In conclusion, the test item was considered to be irritating to the eye.
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