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EC number: 290-824-9 | CAS number: 90268-24-9
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- June 22, 1999
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study with acceptable restrictions
- Remarks:
- according to standard operating procedure of testing institute
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 999
- Report date:
- 1999
Materials and methods
- Principles of method if other than guideline:
- Differential thermal analysis (DTA)
- Type of method:
- differential scanning calorimetry
- Remarks:
- DTA
Test material
- Reference substance name:
- Butanamide, 2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-oxo-, N,N'-bis(4-chloro-2,5-dimethoxyphenyl and 2,4-xylyl) derivs.
- EC Number:
- 290-824-9
- EC Name:
- Butanamide, 2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-oxo-, N,N'-bis(4-chloro-2,5-dimethoxyphenyl and 2,4-xylyl) derivs.
- Cas Number:
- 90268-24-9
- Molecular formula:
- C36H34Cl2N6O4 // C36H33Cl3N6O6 // C36H32Cl4N6O8
- IUPAC Name:
- 2-[(1E)-2-{3,3'-dichloro-4'-[(1E)-2-{1-[(2,4-dimethylphenyl)carbamoyl]-2-oxopropyl}diazen-1-yl]-[1,1'-biphenyl]-4-yl}diazen-1-yl]-N-(2,4-dimethylphenyl)-3-oxobutanamide; N-(4-chloro-2,5-dimethoxyphenyl)-2-[(1E)-2-{3,3'-dichloro-4'-[(1E)-2-{1-[(2,4-dimethylphenyl)carbamoyl]-2-oxopropyl}diazen-1-yl]-[1,1'-biphenyl]-4-yl}diazen-1-yl]-3-oxobutanamide; N-(4-chloro-2,5-dimethoxyphenyl)-2-[(1E)-2-{3,3'-dichloro-4'-[(1E)-2-{1-[(4-chloro-2,5-dimethoxyphenyl)carbamoyl]-2-oxopropyl}diazen-1-yl]-[1,1'-biphenyl]-4-yl}diazen-1-yl]-3-oxobutanamide
- Test material form:
- solid: nanoform
Constituent 1
Results and discussion
Melting / freezing point
- Decomposition:
- yes
- Decomp. temp.:
- 305 °C
Any other information on results incl. tables
The exothermal (decomposition) reaction starts at 290 °C and the onset of the curve is at 304.55 °C (rounded value taken as decomposition temperature) with a peak at 310.12 °C. The decomposition energy is 400 J/g. There is a slight exothermal reaction at 150 °C (10 J/g), attributed to be caused by the air oxygen enclosed in the cup.
No discernible endothermal reaction (melting) was seen in the DTA.
Applicant's summary and conclusion
- Executive summary:
- The DTA shows decomposition at 305 °C without discernible melting prior to decomposition.
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