Registration Dossier
Registration Dossier
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EC number: 947-879-5 | CAS number: 2475232-73-4
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- 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 guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- 27 July 1995
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- 4-[3-(3,5-dichloro-4-fluorophenyl)-4,4,4-trifluorobut-2-enoyl]-N-(2-ethyl-3-oxo-1,2-oxazolidin-4-yl)-2-methylbenzamide
- Molecular formula:
- C23H18Cl2F4N2O4
- IUPAC Name:
- 4-[3-(3,5-dichloro-4-fluorophenyl)-4,4,4-trifluorobut-2-enoyl]-N-(2-ethyl-3-oxo-1,2-oxazolidin-4-yl)-2-methylbenzamide
- Test material form:
- solid
- Details on test material:
- Off-white
Constituent 1
Results and discussion
Melting / freezing point
- Key result
- Melting / freezing pt.:
- 169.8 °C
- Atm. press.:
- 99.8 kPa
- Decomposition:
- no
- Sublimation:
- no
Any other information on results incl. tables
A standard deviation of 0.47 °C was obtained from the four determinations of the melting temperature, resulting in a relative standard deviation of 0.28%. Essentially identical thermograms were observed in air and nitrogen atmospheres.
Applicant's summary and conclusion
- Conclusions:
- The melting temperature of the substance was found to be 169.8 °C at a pressure of 99.8 kPa.
- Executive summary:
The melting temperature of the substance was determined by differential scanning calorimetry under GLP to OECD TG 102. The temperature accuracy of the instrument was determined with indium and zinc prior to the measurement and found to be acceptable. Aliquots of test substance of about 0.005 g were placed in aluminium crucibles with pierced lids and placed in the instrument. Determinations started at 120 °C and the heating rate was 1 °C/minute. Two measurements were performed under static air atmosphere, two additional measurements under nitrogen atmosphere. Essentially identical thermograms were obtained under both atmosphere. The mean melting temperature of the substance was found to be 169.8 °C at a pressure of 99.8 kPa. The standard deviations obtained from four measurements was 0.47 °C.
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