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Diss Factsheets

Administrative data

Endpoint:
relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2021-01-12 to 2021-03-01
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2021
Report date:
2021

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
Version / remarks:
March 04, 2016
Deviations:
no
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
1-[2-[2-methoxy-4-(morpholin-4-yl)-5-nitroanilino]pyrimidin-4-yl]-3-phenyl-1H-pyrazole-4-carbaldehyde
Cas Number:
1903010-39-8
Molecular formula:
C25H23N7O5
IUPAC Name:
1-[2-[2-methoxy-4-(morpholin-4-yl)-5-nitroanilino]pyrimidin-4-yl]-3-phenyl-1H-pyrazole-4-carbaldehyde
Test material form:
solid: particulate/powder
Details on test material:
- Physical state: solid
- Appearance: orange powder
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Batch (Lot) Number: I20ED2016
- Purity/Composition: 101.5%
- Purity test date : 2020-05-27
- Expiry date: 2022-06-06 (retest date)
- Physical Description: Orange powder

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: At room temperature
- Stability and homogeneity of the test material in the vehicle/solvent under test conditions and during storage: not indicated
- Stability in the medium, i.e. sensitivity of the test material to hydrolysis and/or photolysis: not indicated
- Solubility and stability of the test material in the solvent/vehicle and the exposure medium: not indicated
- Reactivity of the test material with the incubation material used (e.g. plastic ware): not indicated

TREATMENT OF TEST MATERIAL PRIOR TO TESTING
No treatment

OTHER SPECIFICS
- Purity/Composition correction factor: Yes, correction factor is 1.0

Results and discussion

Relative self-ignition temperature (solids)
Key result
Remarks on result:
no self-ignition observed up to the melting point
Remarks:
No endothermic or exothermic effect of the test item was observed between 18°C and 235°C (i.e., the melting temperature of the test item_

Any other information on results incl. tables

No endothermic or exothermic effect of the test item was observed between 18°C and 235°C (i.e., the melting temperature of the test item). It demonstrated that the test item is not self-ignitable.


After the experiment, the test item had turned into a black charred residue and was collected in a container that was placed below the cube. It indicated that the test item had been molten, decomposed and/or reacted during the experiment.

Applicant's summary and conclusion

Conclusions:
The self-ignition temperature of the test item was determined using a temperature programmed laboratory oven, a stainless steel wire mesh cube, NiCr/NiAl thermocouples and a temperature recording device. Based on the results obtained the test item is considered ‘not self-ignitable’.