Registration Dossier
Registration Dossier
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EC number: 210-259-3 | CAS number: 611-20-1
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Article on new synthetic procedure reporting melting point/boiling point as part of the characterisation of several new substances.
- GLP compliance:
- no
- Type of method:
- other: no data
- Melting / freezing pt.:
- 97 °C
- Conclusions:
- Melting point determined with standard research laboratory equipment.
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Article on new synthetic procedure reporting melting point as part of the characterisation of the substance.
- GLP compliance:
- no
- Type of method:
- other: no data
- Melting / freezing pt.:
- 99 - 100 °C
- Conclusions:
- Melting point determined with standard research laboratory equipment.
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Article on new synthetic procedure reporting melting point/boiling point as part of the characterisation of several new substances.
- GLP compliance:
- no
- Type of method:
- other: no data
- Melting / freezing pt.:
- 97 - 98 °C
- Atm. press.:
- ca. 1 atm
- Conclusions:
- Melting point determined with standard research laboratory equipment.
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Article on new synthetic procedure reporting melting point/boiling point as part of the characterisation of several new substances.
- GLP compliance:
- no
- Type of method:
- other: no data
- Melting / freezing pt.:
- 96 - 97 °C
- Conclusions:
- Melting point determined with standard research laboratory equipment.
Referenceopen allclose all
Description of key information
97-98°C, no guideline, Molina 1982
99-100°C, no guideline, Johns 1962
97°C, no guideline, Dauzonne 1981
96-97°C, no guideline, Supsana 2007
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 98 °C
Additional information
A large body of experimental data is available for the melting point, for which references are provided in the literature search. Four of the highest reported melting points were selected as best reflecting the intrinsic melting point of the substance, as lower values likely reflect samples with greater levels of impurities. While the reliability of the reported values could not be assessed due to lack of documentation, the close agreement between independantly determined melting points, from independantly synthesised samples, lends credibility to the result. In accordance with Regulation (EC) No. 1907/2006, Annex XI, 1.2, the available data for melting point is considered to be adequate for the purposes of risk assessment, and classification and labelling, based on the weight-of-evidence.
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.
