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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
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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
Skin irritation / corrosion
Administrative data
- Endpoint:
- skin irritation: in vitro / ex vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- April 2018
- 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:
- 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:
- Reaction product of adipic acid and neodecanoic acid, 2-oxiranylmethyl ester (C31H56O10)+(C32H58O10)+(C33H60O10)
- Molecular formula:
- C32H58O10
- IUPAC Name:
- Reaction product of adipic acid and neodecanoic acid, 2-oxiranylmethyl ester (C31H56O10)+(C32H58O10)+(C33H60O10)
- Reference substance name:
- not yet assigned
- Molecular formula:
- C50H88O16 C51H90O16 C52H92O16
- IUPAC Name:
- not yet assigned
- Reference substance name:
- 2,3-epoxypropyl neodecanoate
- EC Number:
- 247-979-2
- EC Name:
- 2,3-epoxypropyl neodecanoate
- Cas Number:
- 26761-45-5
- Molecular formula:
- C13H24O3
- IUPAC Name:
- (oxiran-2-yl)methyl 2,2-dimethyloctanoate
- Test material form:
- liquid: viscous
- Details on test material:
- Former EC 615-318-0 / CAS: 716336-43-5: changed to EC 825-846-5 / CAS 876528-25-5
Constituent 1
Constituent 2
Constituent 3
In vitro test system
- Test system:
- human skin model
- Source species:
- human
- Cell type:
- non-transformed keratinocytes
- Justification for test system used:
- commercially available test system
- Vehicle:
- other: ethyl acetate
- Details on test system:
- RECONSTRUCTED HUMAN EPIDERMIS (RHE) TISSUE
- Model used: epiCS® (CellSystems, Troisdorf, Germany).
- Tissue batch number(s): Cat.-No.CS-1001
- Date of initiation of testing: 10 April 2018
TEMPERATURE USED FOR TEST SYSTEM
- Temperature used during treatment / exposure: incubator (37 ± 2 °C) for 20 min- exposure
- Temperature of post-treatment incubation (if applicable): 37 ± 2 °C
MTT DYE USED TO MEASURE TISSUE VIABILITY AFTER TREATMENT / EXPOSURE
- MTT concentration: 1 mg/mL
- Incubation time: 3 hours
- Spectrophotometer: EL808, Bio-Tek
- Wavelength: 570 nm
NUMBER OF INDEPENDENT TESTING RUNS / EXPERIMENTS TO DERIVE FINAL PREDICTION:
the optical density of the isopropanol-extracts of 3 insert was determined by duplicate per insert = 6 OD values.
PREDICTION MODEL / DECISION CRITERIA:
- The mean optical density (OD) value obtained with the test item was used to calculate the percentage of viability relative to the negative control, which is set at 100 %.
- A category of UN GHS (Category 2 or Category 1) is predicted if the mean percent tissue viability after exposure and post treatment incubation is less than or equal (≤ ) to 50 %.
The irritating potential of the test item is assessed by determination of its cytotoxic effect on an in vitro reconstructed human epidermis. The test principle is based on the MTT assay reflecting the cell viability after exposure to the topically applied test item.
All tests were performed in triplets for each time point. The test item was applied at a 100 % concentration, i.e. 30 µL per insert for 20 min. Cell viability was measured by the amount of MTT reduction (calculated on the basis of optical density of the negative control). - Control samples:
- yes, concurrent negative control
- yes, concurrent positive control
- Amount/concentration applied:
- TEST MATERIAL
- Amount(s) applied: 30 μL
NEGATIVE CONTROL
- Amount(s) applied (volume or weight): 30 μL
- Concentration (if solution): 0.9 % NaCl
POSITIVE CONTROL
- Amount(s) applied (volume or weight): 30 µL
- Concentration (if solution): 5 % Sodium Dodecyl Sulfate (SDS) - Duration of treatment / exposure:
- 20 min
- Duration of post-treatment incubation (if applicable):
- 42 hours
- Number of replicates:
- 3
Results and discussion
In vitro
Results
- Irritation / corrosion parameter:
- % tissue viability
- Run / experiment:
- mean of 3 cultures
- Value:
- ca. 96
- Vehicle controls validity:
- not applicable
- Negative controls validity:
- valid
- Positive controls validity:
- valid
- Remarks on result:
- no indication of irritation
- Other effects / acceptance of results:
- DEMONSTRATION OF TECHNICAL PROFICIENCY:
- Reliability of the test was previously confirmed by interlaboratory validation
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
Any other information on results incl. tables
Sample No. |
Test item |
Time [min.] |
% Cell Viability |
1 -3 |
negative control NaCl 0.9 % |
20 |
100.00 |
7 -9 |
test item |
20 |
96.22 |
4 -6 | positive control | 20 | 3.24 |
Applicant's summary and conclusion
- Interpretation of results:
- GHS criteria not met
- Executive summary:
An in vitro study for predicting non-specific irritating properties of the test item was conducted according to OECD TG 439. The undiluted test item (30 µL per insert) was applied topically to a reconstructed human epidermis model (RhE; epiCS). The cell viability was determined with 96.2 % for the test item as measured by MTT conversion. It is therefore concluded that the test item is not irritating to skin.
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