Registration Dossier

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2017-11-21 - 2017-11-24 (experimental phase)
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report date:
2018

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
adopted by the Council on 27th July 1995
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: in-house test procedure VTA(S)31X93001.02: "Melting temperature determination (Tm) of solid and liquid substances by means of DSC"
Deviations:
no
GLP compliance:
yes
Type of method:
differential scanning calorimetry

Test material

Constituent 1
Chemical structure
Reference substance name:
[8,20-dihydro-8,20-diphenyl-5,24:12,17-diimino-7,10:22,19-dinitrilodibenz[f,p][1,2,4,9,11,12,14,19]octaazacycloicosinato(2-)-N25,N26,N27,N28]iron
EC Number:
256-526-8
EC Name:
[8,20-dihydro-8,20-diphenyl-5,24:12,17-diimino-7,10:22,19-dinitrilodibenz[f,p][1,2,4,9,11,12,14,19]octaazacycloicosinato(2-)-N25,N26,N27,N28]iron
Cas Number:
50293-39-5
Molecular formula:
C32H18FeN12
IUPAC Name:
[8,20-dihydro-8,20-diphenyl-5,24:12,17-diimino-7,10:22,19-dinitrilodibenz[f,p][1,2,4,9,11,12,14,19]octaazacycloicosinato(2-)-N25,N26,N27,N28]iron
Test material form:
solid
Remarks:
dark

Results and discussion

Melting / freezing point
Key result
Decomposition:
yes
Decomp. temp.:
ca. 159 °C
Remarks on result:
other: no melting point has been determined between -90 and 300 °C

Applicant's summary and conclusion

Conclusions:
The melting point was determined in a GLP study according to EU method A.1 without deviations on the registered substance itself. Hence, there is no indication given that the results are not reliable. The test item shows no melting of crystalline subcomponents in a temperature range between -90 °C and 300 °C (at ambient temperature the test item is solid). The cooling run shows no crystallization. The 3rd heating run shows a second endothermic effect with an onset temperature of ca. 159 °C, which can be recognized as decomposition.
Executive summary:

The melting point was determined according to EU method A.1 in a study classified as Klimisch 1. The test item shows no melting of crystalline subcomponents in a temperature range between -90 °C and 300 °C (at ambient temperature the test item is solid). The cooling run shows no crystallization. The 3rd heating run shows a second endothermic effect with an onset temperature of ca. 159 °C, which can be recognized as decomposition.