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EC number: 947-839-7 | 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 vitro / ex vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 20-11-2017 ro 27-11-2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 439 (In Vitro Skin Irritation: Reconstructed Human Epidermis Test Method)
- Version / remarks:
- 28 July 2015
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.46 (In Vitro Skin Irritation: Reconstructed Human Epidermis Model Test)
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- Essential oil of Gurjun obtained from the resin tapped from Dipterocarpus trees (Dipterocarpaceae) by steam distillation (Gurjunene quality)
- EC Number:
- 947-839-7
- IUPAC Name:
- Essential oil of Gurjun obtained from the resin tapped from Dipterocarpus trees (Dipterocarpaceae) by steam distillation (Gurjunene quality)
- Test material form:
- liquid
- Details on test material:
- Name in used in report: Gurrjun Balsam oil (Gurjunene)
Test facility number 209144/A
SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: obtained from sponsor, Batch no. 2642704.
- Expiration date of the lot/batch: 28-02-2018 and extended to 28-12-2018 (30-03-2018)
- Purity test date: 20-09-2017
STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: at room tempersture.
OTHER SPECIFICS: UVCB
Constituent 1
- Specific details on test material used for the study:
- SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: obtained from sponsor, Batch no. 2642704. Test facility number 209144/A
- Expiration date of the lot/batch: 28-02-2018 and extended to 28-12-2018 (30-03-2018)
- Purity test date: 20-09-2017
STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: at room tempersture.
OTHER SPECIFICS: UVCB
In vitro test system
- Test system:
- human skin model
- Source species:
- human
- Cell type:
- non-transformed keratinocytes
- Cell source:
- other: EPISKIN Small ModelTM (EPISKIN-SMTM, 0.38 cm2, Batch no.: 17 EKIN 047)
- Source strain:
- other: 09-KERA-007 and 11-KERA-010
- Justification for test system used:
- In the interest of sound science and animal welfare, a sequential testing strategy is recommended to minimize the need of in vivo testing. One of the validated in vitro skin irritation tests is the EPISKIN te st, which is recommended in international guidelines (e.g. OECD and EC).
- Vehicle:
- unchanged (no vehicle)
- Details on test system:
- RECONSTRUCTED HUMAN EPIDERMIS (RHE) TISSUE
- Model used: EPISKIN Small ModelTM (EPISKIN-SMTM, 0.38 cm2)
- Tissue batch number(s): 17-EKIN-047
- Production date: 21-11-2017
TEMPERATURE USED FOR TEST SYSTEM
- Temperature used during treatment / exposure: room temperature
- Temperature of post-treatment incubation (if applicable): 36.5 - 37°C
REMOVAL OF TEST MATERIAL AND CONTROLS
- Observable damage in the tissue due to washing: not reported
MTT DYE USED TO MEASURE TISSUE VIABILITY AFTER TREATMENT / EXPOSURE
- MTT concentration: MTT concentrate (Sigma Aldrich, Zwijndrecht, The Netherlands; 3 mg/ml in
PBS) diluted (10x) in Assay medium (final concentration 0.3 mg/ml).
- Incubation time: 3 h at 37°C
- Spectrophotometer: TECAN Infinite® M200 Pro Plate Reader
- Wavelength: 570 nm
FUNCTIONAL MODEL CONDITIONS WITH REFERENCE TO HISTORICAL DATA
- The absolute mean OD570 of the negative control tissues was within the laboratory historical
control data range.
-The standard deviation value of the percentage viability of three tissues treated identically was ≤ 13%, indicating that the test system functioned properly.
NUMBER OF REPLICATE TISSUES: triplicates
DECISION CRITERIA
- The test substance is considered to be irritant to skin if the relative mean tissue viability of three
individual tissues after 15 minutes of exposure to the test item and 42 hours of post incubation is ≤
50% of the mean viability of the negative controls.
- The test substance is considered to be non-irritant to skin if the relative mean tissue viability of three
individual tissues after 15 minutes of exposure to the test item and 42 hours of post incubation is >
50% of the mean viability of the negative controls. - Control samples:
- yes, concurrent negative control
- yes, concurrent positive control
- Amount/concentration applied:
- TEST MATERIAL
- Amount(s) applied: 25μL undiluted
NEGATIVE CONTROL
- Amount(s) applied: 25μL undiluted
POSITIVE CONTROL
- Amount(s) applied: 25μL undiluted
- Concentration (if solution): 5% - Duration of treatment / exposure:
- 15 ± 0.5 minutes
- Duration of post-treatment incubation (if applicable):
- 42 hours at 37°C
- Number of replicates:
- three
Results and discussion
In vitro
Results
- Irritation / corrosion parameter:
- % tissue viability
- Run / experiment:
- Main experiment in triplicate
- Value:
- 85
- Vehicle controls validity:
- not applicable
- Negative controls validity:
- valid
- Positive controls validity:
- valid
- Other effects / acceptance of results:
- OTHER EFFECTS:
- Visible damage on test system: not reported
- Direct-MTT reduction: no
- Colour interference with MTT: no
DEMONSTRATION OF TECHNICAL PROFICIENCY:
The positive control had a mean cell viability after 15 ± 0.5 minutes exposure of 16%. The absolute mean OD570 of the negative control tissues was within the laboratory historical control data range. The standard deviation value of the percentage viability of three tissues treated identically was < 13%, indicating that the test system functioned properly.
ACCEPTANCE OF RESULTS:
- Acceptance criteria met for negative control: yes
- Acceptance criteria met for positive control: yes
- Acceptance criteria met for variability between replicate measurements: yes
- Range of historical values if different from the ones specified in the test guideline:
Negative control: Absorption OD570=0.422 – 1.547, Mean=0.98, SD=0.18, n=174
Positive control: Absorption OD570=0.023 – 0.437, Mean=0.13, SD=0.08, n=173
(SD = Standard deviation, n = Number of observations, test facility data over the period of November 2014 to November 2017)
Applicant's summary and conclusion
- Interpretation of results:
- other: not classified
- Remarks:
- based on CLP criteria (Annex I 1272/2008/EC)
- Conclusions:
- The relative mean tissue viablility after exposure to test item was 85%. Based on the results obtained, it can be concluded that Gurjun balsam oil (Gurjunene) does not need
to be classified for skin irritation in accordance with the criteria outlined in Annex I of the CLP Regulation (1272/2008/EC). - Executive summary:
The skin irritation potential of Gurjun balsam oil (Gurjunene) was tested in accordance to OECDTG 439. Undiluted testing material was topically applied to EPISKIN-SMTM for 15 minutes.
After a 42 hour post-incubation period, determination of the cytotoxic (irritancy) effect was performed using MTT conversion measurements. The relative mean tissue viability obtained after 15 ± 0.5 minutes treatment with Gurjun balsam oil (Gurjunene) compared to the negative control tissues was 82%. Since the mean relative tissue viability for testing material was above 50% after 15 minutes treatment it is not considered to be an irritant. Both the positive and the negative control were within the historical control data range and therefore considered valid. Furthermore, the standard deviation value of the percentage viability of three tissues treated identically was less than 13%, indicating that the test system functioned properly. Gurjun balsam oil (Gurjunene) was determined to non-irritant in the in vitro skin irritation test under the experimental conditions described in this report. Therefore it can be concluded that Gurjun balsam oil (Gurjunene) does not need to be classified for skin irritation in accordance with the criteria outlined in Annex I of the CLP Regulation (1272/2008/EC).
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