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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Melting point / freezing point

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Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
31 Aug 2011
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study
Remarks:
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

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Principles of method if other than guideline:
DSC measurement according to company guideline.
Type of method:
thermal analysis

Test material

Constituent 1
Chemical structure
Reference substance name:
4-[[4-(aminocarbonyl)phenyl]azo]-3-hydroxy-N-(2-methoxyphenyl)naphthalene-2-carboxamide
EC Number:
253-292-9
EC Name:
4-[[4-(aminocarbonyl)phenyl]azo]-3-hydroxy-N-(2-methoxyphenyl)naphthalene-2-carboxamide
Cas Number:
36968-27-1
Molecular formula:
C25H20N4O4
IUPAC Name:
4-[(4-carbamoylphenyl)diazenyl]-3-hydroxy-N-(2-methoxyphenyl)-2-naphthamide
Test material form:
not specified

Results and discussion

Melting / freezing point
Decomposition:
yes
Decomp. temp.:
ca. 286 °C

Any other information on results incl. tables

There is no endothermic effect (melting/boiling) in the DSC curves.

The product starts to decompose in the sealed vial at ca. 286 °C with a mean energy of 123 J/g (2 measurements).

Applicant's summary and conclusion

Conclusions:
The test substance does not melt. Decomposition takes place at ca. 286 °C.
Executive summary:

The thermal behaviour of the test substance was investigated by Differential Scanning Calorimetry (DSC). The test substance does not melt. Decomposition takes place at ca. 286 °C.