Registration Dossier
Registration Dossier
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EC number: 256-457-3 | CAS number: 49744-26-5
Boiling point
Administrative data
- Endpoint:
- boiling 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 103 (Boiling Point)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling 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
Boiling point
- Key result
- Decomposition:
- yes
- Decomp. temp.:
- 230 °C
Any other information on results incl. tables
Boiling point / boiling 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: 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 |
No endothermal effect was observed after melting before the exothermal effect started. The DSC-measurements showed therefore no boiling after the melting effect and before the decomposition started.
The test item had no boiling point under atmospheric conditions.
Applicant's summary and conclusion
- Executive summary:
The test item had no boiling point under atmospheric conditions.
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