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Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2012
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Comparable to guideline study (EU A.1) with acceptable restrictions.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2012
Report date:
2012

Materials and methods

Principles of method if other than guideline:
Differential scanning calorimetry
Type of method:
thermal analysis

Test material

Constituent 1
Chemical structure
Reference substance name:
2-[(4-methoxy-2-nitrophenyl)azo]-N-(2-methoxyphenyl)-3-oxobutyramide
EC Number:
229-419-9
EC Name:
2-[(4-methoxy-2-nitrophenyl)azo]-N-(2-methoxyphenyl)-3-oxobutyramide
Cas Number:
6528-34-3
Molecular formula:
C18H18N4O6
IUPAC Name:
2-[(4-methoxy-2-nitrophenyl)diazenyl]-N-(2-methoxyphenyl)-3-oxobutanamide
Details on test material:
purrity: 98,3 %

Results and discussion

Melting / freezing point
Melting / freezing pt.:
ca. 225 °C
Decomposition:
yes
Decomp. temp.:
ca. 245 °C

Any other information on results incl. tables

The product begins to melt at 225 °C (mean of 2 measurements). Exothermic decomposition starts at 245 °C (mean of 2 measurements). Because of the overlap of endothermic and exothermic processes, the energy measured for the exothermic process (1041 J/g; mean of 2 measurements) is less than the true decomposition energy.

Applicant's summary and conclusion

Conclusions:
The product begins to melt at 225 °C (mean of 2 measurements).
Executive summary:

The thermal behaviour of the test substance was investigated by Differential Scanning Calorimetry (DSC). The test item melts under decomposition starting from ca. 225 °C.

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