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Diss Factsheets
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EC number: 944-251-2 | 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
Appearance / physical state / colour
Administrative data
- Endpoint:
- appearance / physical state / colour
- Type of information:
- other: based on observation
- Adequacy of study:
- weight of evidence
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: based on observation
- Justification for type of information:
- No guideline is required according to REACh TGD. Considering that the substance is well characterised and that the data come from a GLP study, full reliability applies.
Cross-reference
- Reason / purpose for cross-reference:
- reference to other study
Reference
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 05 January 2015 - 03 March 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- There were no deviations from standard operating procedures (SOPs).
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- There were no deviations from standard operating procedures (SOPs).
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- Material Identification (as stated in the report) : Gyrane
Appearance: Colourless to pale yellow liquid
Batch: SC00008777
Please note that although the substance is described in the report with the IUPAC name: 6-Butyl-2,4-dimethyl-3,6-dihydro-2H-pyran related to the CAS number 24237-00-1, EC#246-098-0, recent analytical data had been determined the substance to be a multi-constituent described as Reaction mass of 6-butyl-3,6-dihydro-2,4-dimethyl-2H-pyran and 2-butyl-3,6-dihydro-4,6-dimethyl-2H-pyran and 2-butyltetrahydro-6-methyl-4-methylene-2H-pyran.
As the chemical manufacturing process has not changed since the report was written, the recent analytical information is relevant to the batch SC00008777 which was tested. - Key result
- Melting / freezing pt.:
- < -80 °C
- Atm. press.:
- 1 026 hPa
- Decomposition:
- no
- Sublimation:
- no
- Conclusions:
- The melting temperature of Gyrane was determined at < -80°C (< 193K) by applying a storage experiment in the freezer.
- Executive summary:
The melting temperature of Gyrane was determined at < -80°C (< 193K) by applying a storage experiment in the freezer.
To further investigate the melting temperature of the test substance, two samples of the test substance were stored for 16 hours at -21.9 ± 0.3°C and -82.0 ± 1.9°C respectively. It was observed after storage that the test substance was a liquid (-20°C freezer) and a very viscous liquid (-80°C freezer). According to this it was concluded that the melting temperature of the test substance is < - 80°C (< 193 K).
Data source
Materials and methods
Test guideline
- Qualifier:
- no guideline required
- Version / remarks:
- No guideline is required according to REACh TGD.
Test material
- Reference substance name:
- 2-butyl-3,6-dihydro-4,6-dimethyl-2H-pyran
- EC Number:
- 246-099-6
- EC Name:
- 2-butyl-3,6-dihydro-4,6-dimethyl-2H-pyran
- Cas Number:
- 24237-01-2
- Molecular formula:
- C11H20O
- IUPAC Name:
- 2-butyl-4,6-dimethyl-3,6-dihydro-2H-pyran
- Reference substance name:
- 6-butyl-3,6-dihydro-2,4-dimethyl-2H-pyran
- EC Number:
- 246-098-0
- EC Name:
- 6-butyl-3,6-dihydro-2,4-dimethyl-2H-pyran
- Cas Number:
- 24237-00-1
- Molecular formula:
- C11H20O
- IUPAC Name:
- 6-butyl-2,4-dimethyl-3,6-dihydro-2H-pyran
- Reference substance name:
- 2-butyltetrahydro-6-methyl-4-methylene-2H-pyran
- EC Number:
- 246-101-5
- EC Name:
- 2-butyltetrahydro-6-methyl-4-methylene-2H-pyran
- Cas Number:
- 24237-02-3
- Molecular formula:
- C11H20O
- IUPAC Name:
- 2-butyl-6-methyl-4-methylenetetrahydro-2H-pyran
Constituent 1
Constituent 2
Constituent 3
Results and discussion
- Physical state at 20°C and 1013 hPa:
- liquid
Form / colour / odour
- Form:
- liquid
- Colour:
- colorless to Pale yellow
- Odour:
- other: Green, like fruit, Floral, Fresh
- Substance type:
- organic
Applicant's summary and conclusion
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.