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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: - | 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
![](https://echa.europa.eu/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_toxicological-information.png)
Skin irritation / corrosion
Administrative data
- Endpoint:
- skin irritation: in vitro / ex vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- From 2013-09-26 to 2013-11-19
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study conducted in accordance with OECD guidelines and GLP.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 013
- Report date:
- 2013
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 439 (In Vitro Skin Irritation: Reconstructed Human Epidermis Test Method)
- Deviations:
- yes
- Remarks:
- The 12 wells plates with tissues were preincubated for 2h instead of 24h. Upon receiving instructions from the supplier, Episkin tissues were transferred to maintenance medium for 24h. This protocol deviation did not affected the study integrity.
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.46 (In Vitro Skin Irritation: Reconstructed Human Epidermis Model Test)
- Deviations:
- yes
- Remarks:
- The 12 wells plates with tissues were preincubated for 2h instead of 24h. Upon receiving instructions from the supplier, Episkin tissues were transferred to maintenance medium for 24h. This protocol deviation did not affected the study integrity.
- GLP compliance:
- yes
Test material
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
- Details on test material:
- Batch: 110801
Purity: 99.8%
Test substance storage: At room temperature in the dark under nitrogen
Stable under storage conditions until 26 August 2018 (expiry date)
Reactivity: reactive to oxygen
Constituent 1
Test animals
- Species:
- other: EPISKIN Small Model (human)
- Details on test animals or test system and environmental conditions:
- ENVIRONMENTAL CONDITIONS
All incubations, with the exception of the test substance incubation of 15 minutes at room temperature, were carried out in a controlled environment.
-Humid atmosphere of 80 - 100% (actual range 82 - 96%), containing 5.0 ± 0.5% CO2 in air in the dark
-Temperature:37.0 ± 1.0°C (actual range 36.3 – 37.6°C).
Temperature and humidity were continuously monitored throughout the experiment. The CO2 percentage was monitored once on each working day.
Test system
- Type of coverage:
- open
- Vehicle:
- physiological saline
- Amount / concentration applied:
- 10.0 to 13.3mg
- Duration of treatment / exposure:
- 15 minutes
- Details on study design:
- TEST SYSTEM
Name: EPISKIN Small ModelTM (EPISKIN-SMTM, 0.38 cm2, Batch no.: 13-EKIN-034)
Source: SkinEthic Laboratories, Lyon, France.
Rationale: One of the validated in vitro skin irritation tests is the EPISKIN test, which is recommended in international guidelines (e.g. OECD and EC).
TREATMENT
The test was performed on a total of 3 tissues per test substance together with negative and positive controls. The skin was moistened with 5 μl Milli-Q water (Millipore Corp., Bedford, Mass., USA) to ensure close contact of the test substance to the tissue and the solid test substance (10.0 to 13.3 mg) was added into 12-well plates on top of the skin tissues. Three tissues were treated with 25 μl PBS (negative control) and 3 tissues with 25 μl 5% SDS (positive control) respectively. The positive control was re-spread after 7 minutes contact time. After the exposure period of 15 minutes at room temperature, the tissues were washed with phosphate buffered saline to remove residual test substance. After rinsing the cell culture inserts were each dried carefully and moved to a new well on 2 ml pre-warmed maintenance medium until all tissues were dosed and rinsed. Subsequently the skin tissues were incubated for 42 hours at 37°C.
CELL VIABILITY MEASUREMENT
Cell viability was calculated for each tissue as a percentage of the mean of the negative control tissues. Skin irritation potential of the test substance was classified according to remaining cell viability following exposure of the test substance.
Results and discussion
In vitro
Results
- Irritation / corrosion parameter:
- % tissue viability
- Value:
- 112
- Vehicle controls validity:
- not applicable
- Negative controls validity:
- valid
- Positive controls validity:
- not valid
- Remarks on result:
- no indication of irritation
Any other information on results incl. tables
Table 1 Mean absorption in thein vitroskin irritation test with the test substance
A
B
C
Mean(OD570) +/-SD Negative Control 1.180
1.134 1.050 1.121 +/- 0.066
The test substance 1.2021.2841.286 1.257 +/- 0.048
Table 2 Mean tissue viability in thein vitroskin irritation test with the test substance
Mean tissue viability (Percentage od control) Negative Control 100 The test substance 101 Positive Control 6
Applicant's summary and conclusion
- Interpretation of results:
- not irritating
- Remarks:
- Migrated information Criteria used for interpretation of results: other:
- Conclusions:
- The test substance is non-irritant in the in vitro skin irritation test under the experimental conditions described in this report.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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