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EC number: 232-444-8 | CAS number: 8030-55-5 Extractives and their physically modified derivatives. It consists primarily of resins, essential oils, and usually cinnamic and benzoic acids. (Dipterocarpus, Dipterocarpaceae).
- 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 vitro / ex vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 16-09-2016
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 016
- Report date:
- 2016
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 437 (Bovine Corneal Opacity and Permeability Test Method for Identifying Ocular Corrosives and Severe Irritants)
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- Balsams, gurjun
- EC Number:
- 232-444-8
- EC Name:
- Balsams, gurjun
- Cas Number:
- 8030-55-5
- IUPAC Name:
- Essential oil of Gurjun obtained from the resin tapped from Dipterocarpus trees (Dipterocarpaceae) by steam distillation (Copaene quality)
- Test material form:
- liquid
- Remarks:
- Clear colourless to pale yellow liquid
- Details on test material:
- - Name of test material (as cited in study report): Gurjun Balsam oil
- Substance type: pure substance
- Physical state: liquid
- Analytical purity: no data
- Lot/batch No.: confidential information
Constituent 1
- Specific details on test material used for the study:
- SOURCE OF TEST MATERIAL
- Test item: 207786/A
- Source and lot/batch No.of test material:L4285828
- Expiration date of the lot/batch:30 April 2018 (retest date)
STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material:At room temperature protected from light
OTHER SPECIFICS: UVCB
Test animals / tissue source
- Species:
- other: Bovine
- Strain:
- not specified
- Details on test animals or tissues and environmental conditions:
- SOURCE OF COLLECTED EYES
- Source:Vitelco, 's Hertogenbosch, The Netherlands
- Storage, temperature and transport conditions of ocular tissue (e.g. transport time, transport media and temperature, and other conditions): Eyes were collected and transported in physiological saline in a suitable container under cooled conditions. The isolated corneas were stored in a petri dish with cMEM (Earle’s Minimum Essential Medium (Life Technologies, Bleiswijk, The Netherlands) containing 1% (v/v) L-glutamine (Life Technologies) and 1% (v/v) Foetal Bovine Serum (Life Technologies)).
- Time interval prior to initiating testing: Bovine eyes were used as soon as possible after slaughter
- indication of any existing defects or lesions in ocular tissue samples: no
Test system
- Vehicle:
- unchanged (no vehicle)
- Controls:
- yes, concurrent positive control
- yes, concurrent negative control
- Amount / concentration applied:
- TEST MATERIAL
- Amount(s) applied (volume or weight with unit):750 μl
- Concentration (if solution): unchanged - Duration of treatment / exposure:
- 10 minutes
- Duration of post- treatment incubation (in vitro):
- 120 minutes
- Number of animals or in vitro replicates:
- 3
- Details on study design:
- SELECTION AND PREPARATION OF CORNEAS:
-The eyes were checked for unacceptable defects, such as opacity, scratches, pigmentation and neovascularization by removing them from the physiological saline and holding them in the light. Those exhibiting defects were discarded. The isolated corneas were stored in a petri dish with cMEM containing 1% (v/v) L-glutamine and 1% (v/v) Foetal Bovine Serum. The isolated corneas were mounted in a corneal holder (one cornea per holder) with the endothelial side against the O-ring of the posterior half of the holder. The anterior half of the holder was positioned on top of the cornea and tightened with screws. The compartments of the corneal holder were filled with cMEM of 32°C. The corneas were incubated for the minimum of 1 hour at 32°C.
QUALITY CHECK OF THE ISOLATED CORNEAS:
-After the incubation period, the medium was removed from both compartments and replaced with fresh cMEM. Opacity determinations were performed on each of the corneas using an
opacitometer. The opacity of each cornea was read against a cMEM filled chamber, and the initial opacity reading thus determined was recorded. Corneas that had an initial opacity reading higher than 7 were not used. Three corneas were selected at random for each treatment group.
NUMBER OF REPLICATES: 3
NEGATIVE CONTROL USED: Physiological saline
POSITIVE CONTROL USED: Ethanol
APPLICATION DOSE AND EXPOSURE TIME:
-750 µl of either the positive control, the negative control or the test item, Corneas were incubated in a horizontal position for 10 minutes at 32°C
TREATMENT METHOD: [closed chamber / open chamber]
POST-INCUBATION PERIOD: -
REMOVAL OF TEST SUBSTANCE
- Number of washing steps after exposure period: 2
- Post-exposure incubation: Corneas were incubated for 120 minutes at 32°C
METHODS FOR MEASURED ENDPOINTS:
- Corneal opacity: Opacity value is calculated (measured with the device OP-KIT)
- Corneal permeability: passage of sodium fluorescein dye measured with the aid of microplate reader (OD490)
- Others: After the completion of the incubation period opacity determination was performed. Each cornea was inspected visually for dissimilar opacity patterns.
SCORING SYSTEM: In Vitro Irritancy Score (IVIS)
DECISION CRITERIA:
-The IVIS cut-off values for identifying the test items as inducing serious eye damage (UN
GHS Category 1) and test items not requiring classification for eye irritation or serious eye
damage (UN GHS No Category)
In vitro score range UN GHS
≤ 3 No Category
> 3; ≤ 55 No prediction can be made
>55 Category 1
-Acceptability of the assay: The positive control gives an in vitro irritancy score that falls within two standard deviations of the current historical mean: The negative control responses should result in opacity and permeability values that are less than the upper limits of the laboratory historical range.
Results and discussion
In vitro
Resultsopen allclose all
- Irritation parameter:
- cornea opacity score
- Run / experiment:
- Mean
- Value:
- 1.2
- Vehicle controls validity:
- not applicable
- Negative controls validity:
- valid
- Remarks:
- 0.5
- Positive controls validity:
- valid
- Remarks:
- 26.3
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- in vitro irritation score
- Run / experiment:
- Mean
- Value:
- 1.4
- Vehicle controls validity:
- not applicable
- Negative controls validity:
- valid
- Remarks:
- 0.6
- Positive controls validity:
- valid
- Remarks:
- 69.5
- Remarks on result:
- no indication of irritation
Applicant's summary and conclusion
- Interpretation of results:
- other: not classified
- Remarks:
- based on CLP criteria
- Conclusions:
- The test item did not induce ocular irritation through both endpoints, resulting in a mean in vitro irritancy score of 1.4 after 10 minutes of treatment. The test item induced an IVIS ≤ 3, therefore no classification is required for eye irritation or serious eye damage under the conditions of this test.
- Executive summary:
In this Bovine Corneal Opacity and Permeability test (BCOP test), the eye hazard potential of Gurjun balsam oil was tested. 750 µl of the testing material was tested through topical application directly on top of the corneas for 10 minutes. The negative and positive controls for opacity and permeability were within the laboratory historical range indicating that the test conditions were adequate and that the test system functioned properly. The test item did not induce ocular irritation through both endpoints, resulting in a mean in vitro irritancy score of 1.4 after 10 minutes of treatment. The test item induced an IVIS ≤ 3, therefore no classification is required for eye irritation or serious eye damage under the conditions of this test.
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