Registration Dossier
Registration Dossier
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EC number: 256-457-3 | CAS number: 49744-26-5
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- September 02, 2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
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:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- p-[(5-cyano-1,6-dihydro-2-hydroxy-1,4-dimethyl-6-oxo-3-pyridyl)azo]-N-(2-ethylhexyl)benzamide
- EC Number:
- 250-205-6
- EC Name:
- p-[(5-cyano-1,6-dihydro-2-hydroxy-1,4-dimethyl-6-oxo-3-pyridyl)azo]-N-(2-ethylhexyl)benzamide
- Cas Number:
- 30449-81-1
- Molecular formula:
- C23H29N5O3
- IUPAC Name:
- 4-[(5-cyano-2-hydroxy-1,4-dimethyl-6-oxo-1,6-dihydropyridin-3-yl)diazenyl]-N-(2-ethylhexyl)benzamide
- Test material form:
- solid: particulate/powder
Constituent 1
Results and discussion
Melting / freezing point
- Key result
- Melting / freezing pt.:
- 182.3 °C
Any other information on results incl. tables
Individual results
Melting point / melting range: DSC measurement
Two DSC measurements with a heating rate of 10 K/min showed an endothermal effect (melting) in the temperature range of 165 – 195 °C. The onset temperature (see Table1) was derived from the intersection of the tangent line with the highest slope of the endothermal peak with the baseline. The first measurement showed furthermore exothermal effects starting at 230 °C.
The results of the DSC measurements are summarized in Table 1.
Table1: Melting point (DSC measurements)
Ident No. |
Test item / mg |
Starting temperature / °C |
Final test temperature / °C |
Temperature range (melting) / °C |
Onset / °C |
Crucible |
Observations after the measurement |
35842 |
6.02 |
25 |
500 |
165 – 195 |
182.69 |
Aluminium with a hole |
Measurement continued after melting |
35844 |
3.56 |
25 |
220 |
165 – 190 |
181.87 |
Aluminium with a hole |
Test item was an orange melt after the measurement |
The test item had a melting point of 182.3 °C.
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.
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