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Diss Factsheets
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EC number: 952-252-4 | 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
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Eye irritation
Administrative data
- Endpoint:
- eye irritation: in vitro / ex vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 07 Sep 2020 - 20 Sep 2020
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 021
- Report date:
- 2021
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 492 (Reconstructed Human Cornea-like Epithelium (RhCE) Test Method for Identifying Chemicals Not Requiring Classification and Labelling for Eye Irritation or Serious Eye Damage)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- Amines, C16-18 (even numbered)-alkyl , salts with phosphoric acid, mono- and di-C16-18 (even numbered) alkyl esters
- EC Number:
- 952-252-4
- Molecular formula:
- H4NO4P(C32H66) to H3NO4P(C54H111)
- IUPAC Name:
- Amines, C16-18 (even numbered)-alkyl , salts with phosphoric acid, mono- and di-C16-18 (even numbered) alkyl esters
- Test material form:
- solid
- Details on test material:
- Chemical registery number : 952-252-4
Chemical name : Amines, C16-18 (even numbered)-alkyl , salts with phosphoric acid, mono- and di-C16-18 (even numbered) alkyl esters
1
Test animals / tissue source
- Species:
- human
- Details on test animals or tissues and environmental conditions:
- Non-keratinized epithelium (0.6 cm2) prepared from normal human keratinocytes.
Test system
- Vehicle:
- unchanged (no vehicle)
- Controls:
- yes, concurrent positive control
- yes, concurrent negative control
- Amount / concentration applied:
- TEST MATERIAL
- Amount(s) applied: 50.1 to 55.9 mg - Duration of treatment / exposure:
- 6 hours ± 15 minutes
- Duration of post- treatment incubation (in vitro):
- 18 hours
- Number of animals or in vitro replicates:
- The test was performed on a total of 2 tissues per test item together with a negative control
and positive control - Details on study design:
- - Control substances used:
Negative control: Sterile Milli-Q water
Positive control: Methyl Acetate [CAS Number 79-20-9]
- Duration and temperature of exposure, post-exposure immersion and post-exposure incubation periods: After the exposure period with the test item (6 hours ± 15 minutes at 37.0 ± 1.0°C), the tissues were thoroughly rinsed with Ca2+Mg2+-free D-PBS (brought to room temperature) to remove residual test item. After rinsing the cell culture inserts were each dried carefully and immediately transferred to and immersed in 5 mL of previously warmed Assay Medium (room temperature) in a pre-labeled 12-well plate for a 25 ± 2 minute immersion incubation at room temperature (Post-Soak). After the Post-Soak period cell culture inserts were each dried carefully and transferred to the 6-well plate containing 1.0 mL of warm Assay Medium and were incubated for 18 hours ± 15 minutes at 37°C.
- Number of tissue replicates used per test chemical and controls: The test was performed on a total of 2 tissues per test item together with a negative control and positive control
- Wavelength and band pass used for quantifying MTT formazan: The amount of extracted formazan was determined spectrophotometrically at 570 nm in duplicate with the TECAN Infinite® M200 Pro Plate Reader.
- Supporting information for the specific RhCE tissue construct used: EpiOcular™ (OCL-200-EIT MatTek Corporation, Lot: 31755, kit A.
Results and discussion
In vitro
Results
- Irritation parameter:
- percent tissue viability
- Run / experiment:
- Mean Tissue Viability
- Value:
- 94
- Vehicle controls validity:
- not applicable
- Negative controls validity:
- valid
- Positive controls validity:
- valid
Applicant's summary and conclusion
- Interpretation of results:
- GHS criteria not met
- Conclusions:
- The test item is non-irritant in the EpiOcular™ test under the experimental conditions described in this report.
- Executive summary:
The objective of this study was to evaluate the eye hazard potential of the test item. For this purpose, the test item was topically applied on the Reconstructed Human EpiOcular™ Model.
The possible eye hazard potential of the test item was tested through topical application for 6 hours.
The study procedures described in this report were based on the most recent OECD guideline.
Batch AEK-20-106 of the test item was a beige solid. The test item (50.1 to 55.9 mg) was applied directly on top of the tissue for 6 hours ± 15 minutes.
After exposure, the cornea epithelial construct was thoroughly rinsed to remove the test item and transferred to fresh medium for an immersion incubation. Afterwards, the tissues were transferred to fresh medium and incubated for 18 hours at standard culture conditions, prior to determination of the cytotoxic (irritancy) effect.
The positive control had a mean cell viability of 9.8% after 6 hours ± 15 minutes exposure.
The absolute mean OD570 (optical density at 570 nm) of the negative control tissues was within the laboratory historical control data range. The difference between the percentage of viability of two tissues treated identically was less than 7%, indicating that the test system functioned properly.
The test item showed color interference in aqueous conditions. In addition to the normal procedure, two tissues were treated with test item. Instead of MTT solution, these tissues were incubated with assay medium. The non-specific colour of the test item was 0.30% of the negative control tissues. The OD of the treated tissues without MTT assay was subtracted from the ODs of the test item treated viable tissues with MTT assay.
Eye hazard potential is expressed as the remaining cell viability after exposure to the test item. The relative mean tissue viability obtained after 6 hours ± 15 minutes treatment with the test item compared to the negative control tissues was 94%. Since the mean relative tissue viability for the test item was above 60% after 6 hours ± 15 minutes treatment, the test item is considered to be non-irritant.
In conclusion, the test item is non-irritant in the EpiOcular™ test under the experimental conditions described in this report.
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