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Diss Factsheets
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EC number: 218-301-2 | CAS number: 2110-78-3
- 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
Eye irritation
Administrative data
- Endpoint:
- eye irritation, other
- Remarks:
- in silico: Read-across with OECD QSAR Toolbox v4.1
- Type of information:
- (Q)SAR
- Adequacy of study:
- weight of evidence
- Study period:
- 2017-10-06
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification
- Justification for type of information:
- Please refer to reports in 'Attached justification'
Data source
Reference
- Reference Type:
- other: QSAR model
- Title:
- Unnamed
- Year:
- 2 008
Materials and methods
Test guideline
- Guideline:
- other: REACH Guidance on QSARs R.6
- Version / remarks:
- Read across was performed with the OECD QSAR Toolbox version 4.1
- Principles of method if other than guideline:
- - Software tool(s) used including version: OECD QSAR Toolbox v4.1
- Model(s) used: Read across
- Model description: see field 'Attached justification'
- Justification of QSAR prediction: see field 'Attached justification'
Test material
- Reference substance name:
- Methyl 2-hydroxy-2-methylpropionate
- EC Number:
- 218-301-2
- EC Name:
- Methyl 2-hydroxy-2-methylpropionate
- Cas Number:
- 2110-78-3
- Molecular formula:
- C5H10O3
- IUPAC Name:
- methyl 2-hydroxy-2-methylpropanoate
Constituent 1
Results and discussion
In vitro
Results
- Irritation parameter:
- other: QSAR
- Remarks on result:
- positive indication of irritation
- Remarks:
- The query chemical is predicted to be 'highly irritating' by the OECD QSAR Toolbox
Any other information on results incl. tables
The substance methyl 2 -hydroxyisobutyrate was predicted highly eye irritative by the OECD QSAR Toolbox v4.1. This prediction falls within the applicability domain of this model and is based on consistent data.
Applicant's summary and conclusion
- Interpretation of results:
- Category 1 (irreversible effects on the eye) based on GHS criteria
- Conclusions:
- The substance methyl 2-hydroxyisobutyrate was predicted eye irritative by the OECD QSAR Toolbox v4.1.
- Executive summary:
Read-across on eye irritation potential of methyl 2-hydroxyisobutyrate was performed using the OECD QSAR Toolbox (version 4.1). The substance methyl 2 -hydroxyisobutyrate is predicted 'highly irritative to the eye'. It lies within the applicability domain of this model and is based on consistent data. Three of the analogues ( Propyl L-lactate CAS 53651-69-7, Polysolvan O CAS 7397-62-8 and 3-Hydroxy-2,2-dimethylpropyl 3-hydroxy-2,2-dimethylpropanoate CAS 1115-20 -4) used for the prediction induced irreversible effects to the eye in rabbits or in the ex vivo Enucleated Eye Test with chicken eyes (CEET). Therefore, within the frame of a worst-case approach methyl 2 -hydroxyisobutyrate is classified as Cat. 1 (Eye Dam. 1, H318: Causes serious eye damage) in accordance to Regulation (EC) No 1272/2008 (CLP Regulation).
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