Registration Dossier

Diss Factsheets

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: well performed study according to acknowledged standard

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2016
Report date:
2016

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: company SOP
Principles of method if other than guideline:
Differential scanning calorimetry (DSC)
GLP compliance:
no
Type of method:
thermal analysis

Test material

Constituent 1
Chemical structure
Reference substance name:
2,2'-(1,4-phenylene)bis[4-[(4-methoxyphenyl)methylene]oxazol-5(4H)-one]
EC Number:
257-055-0
EC Name:
2,2'-(1,4-phenylene)bis[4-[(4-methoxyphenyl)methylene]oxazol-5(4H)-one]
Cas Number:
51202-86-9
Molecular formula:
C28H20N2O6
IUPAC Name:
2,2'-(1,4-phenylene)bis[4-(4-methoxybenzylidene)-1,3-oxazol-5(4H)-one]
Details on test material:
Purity: 98.4 % (w/w)

Results and discussion

Melting / freezing point
Melting / freezing pt.:
296 °C
Atm. press.:
ca. 1 atm
Decomposition:
yes
Decomp. temp.:
ca. 317 °C
Sublimation:
no

Any other information on results incl. tables

An exothermic decomposition starts at 317°C. Because of the overlap of endothermic and exothermic processes, the energy measured for the exothermic process (100 J/g) is less than the true decomposition energy. The sharp endothermic peak at 296°C is the melting point.

Applicant's summary and conclusion

Conclusions:
The melting point of the substance is 296°C:
Executive summary:

The melting point of the substance was determined by DSC and was found to be 296 °C.