Registration Dossier
Registration Dossier
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EC number: 618-690-2 | CAS number: 90982-32-4
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:
- 2 006
- Report date:
- 2006
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- ethyl 2-({[(4-chloro-6-methoxypyrimidin-2-yl)carbamoyl]amino}sulfonyl)benzoate
- EC Number:
- 618-690-2
- Cas Number:
- 90982-32-4
- Molecular formula:
- C15H15ClN4O6S
- IUPAC Name:
- ethyl 2-({[(4-chloro-6-methoxypyrimidin-2-yl)carbamoyl]amino}sulfonyl)benzoate
- Test material form:
- solid
- Details on test material:
- - Purity: 98.8%
- Impurities: Not reported
Constituent 1
Results and discussion
Melting / freezing point
- Key result
- Melting / freezing pt.:
- 189.47 °C
- Decomposition:
- yes
- Decomp. temp.:
- 246.42 °C
Applicant's summary and conclusion
- Conclusions:
- Average melting point: 189.47 ± 0.12°C
Average decomposition temperature: 246.42 ± 0.14°C - Executive summary:
The melting and decomposition points of the test substance were determined by differential scanning calorimetry (DSC) according to the guidelines OECD 102 (Melting point / Melting Range) and EPA OPPTS 830.7200.
The melting points of DSC analyses of triplicate samples of the test substance are 189.60, 189.38, and 189.42°C for an average of 189.47 ± 0.12°C. The test substance decomposed after melting and before reaching a boiling point. Decomposition was determined to have occurred by the appearance of an exothermic peak on the DSC scan. The appearance of the test sample prior to DSC analysis was a light orange solid; while after the DSC analysis the contents of the sample pan were a dark brown solid. The temperatures at which decomposition began for the triplicate DSC analyses were 246.41, 246.29, and 246.56°C for an average of 246.42 ± 0.14°C.
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