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EC number: 279-348-2 | CAS number: 79915-74-5
- 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:
- December 2015 - February 2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 016
- Report date:
- 2016
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:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.46 (In Vitro Skin Irritation: Reconstructed Human Epidermis Model Test)
- Deviations:
- no
- GLP compliance:
- yes
Test material
- Reference substance name:
- 2-isopropoxyethyl salicylate
- EC Number:
- 279-348-2
- EC Name:
- 2-isopropoxyethyl salicylate
- Cas Number:
- 79915-74-5
- Molecular formula:
- C12H16O4
- IUPAC Name:
- 2-(propan-2-yloxy)ethyl 2-hydroxybenzoate
- Test material form:
- liquid
- Details on test material:
- - State of aggregation: Clear colorless liquid
- Storage Conditions: Room temperature, in the dark
Constituent 1
In vitro test system
- Test system:
- human skin model
- Remarks:
- EPISKIN™
- Source species:
- human
- Cell type:
- non-transformed keratinocytes
- Cell source:
- other: not specified
- Vehicle:
- unchanged (no vehicle)
- Details on test system:
- RECONSTRUCTED HUMAN EPIDERMIS (RHE) TISSUE
- Model used: EPISKIN™ (Supplier: SkinEthic Laboratories, 4, A. Fleming – 69366 Lyon, France)
- Tissue batch number: 16-EKIN-004
The test system EPISKIN™ is a reconstructed human epidermis (RhE) model, which in its overall design (the use of human derived epidermis keratinocytes as cell source and use of representative tissue and cytoarchitecture) closely mimics the biochemical and physiological properties of the upper parts of the human skin, i.e. the epidermis. The principle of the RhE test method is based on the premise that chemicals are able to penetrate the stratum corneum and irritant chemicals are cytotoxic to the cells in the underlying layers. Cell viability is measured by dehydrogenase conversion of the vital dye MTT [3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide, Thiazolyl blue; CAS N. 298-93-1] into a blue formazan salt that is quantitatively measured after extraction from tissues. Irritant chemicals are identified by their ability to decrease cell viability below defined threshold levels. - Control samples:
- yes, concurrent negative control
- yes, concurrent positive control
- Amount/concentration applied:
- 20 µL/epidermis unit, each measuring 0.38 cm^2 (treatment level: 53 µL/cm^2).
- Duration of treatment / exposure:
- 15 +/- 0.5 minutes (in a ventilated cabinet at room temperature)
- Duration of post-treatment incubation (if applicable):
- 42 +/- 1 hour
- Number of replicates:
- 3
Results and discussion
In vitro
Results
- Irritation / corrosion parameter:
- % tissue viability
- Run / experiment:
- mean
- Value:
- 72.8
- Vehicle controls validity:
- valid
- Remarks:
- 100%
- Positive controls validity:
- valid
- Remarks:
- 4.1%
- Other effects / acceptance of results:
- The test item did not induce relevant cell death in any replicate, with a mean cell viability of 72.8%, when compared to the negative control. Acceptable intra-replicate variability was obtained (SD of % viability = 12.3, i.e. lower than 18).
Before the main assay, a preliminary test was carried out to evaluate the compatibility of the test item with the test system. In a first step, the test item was assayed for the ability of reducing MTT per se. A colourless solution, with a sticky transparent precipitate was observed at the end of the incubation period, indicating no interaction with MTT. In a second step, the test item was assayed for the ability of colouring water per se. A transparent solution was observed indicating that the test item has no colour capabilities. Based on these results, no additional control was added in theMain Assay.
Applicant's summary and conclusion
- Interpretation of results:
- GHS criteria not met
- Conclusions:
- Based on the results of a reliable in viro skin irritation test, it is concluded that Sakura Salicylate is classified as not irritant to the skin.
- Executive summary:
The potential of Sakura Salicylate to be irritant to the skin was investigated through an in vitro skin irritation study, using a reconstructed human epidermis (RhE) model EPISKIN™. The experimental procedures were according to OECD Guideline 439 and GLP principles. The test item was shown not to interfere with the test system and positive and negative controls (a 5% (w/v) SDS solution in water and Dulbecco’s phosphate buffered saline (D-PBS), respectively) gave responses as expected. The test item did not induce relevant cell death in any replicate, with a mean cell viability of 72.8% when compared to the negative control. Intra-replicate variability was acceptable with an SD of % viability value equal to 12.3. Based on the results obtained, Sakura Salicylate is classified as not irritant to the skin according to Regulation (EC) 1272/2008.
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