Registration Dossier
Registration Dossier
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EC number: 609-076-5 | CAS number: 35139-67-4
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- -
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- -
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- capillary method
Test material
- Reference substance name:
- 2,4-Diamino-6-chloropyrimidine-3-oxide
- EC Number:
- 609-076-5
- Cas Number:
- 35139-67-4
- Molecular formula:
- C4H5ClN4O
- IUPAC Name:
- 2,4-Diamino-6-chloropyrimidine-3-oxide
- Test material form:
- solid
- Remarks:
- white/beige solid
Constituent 1
- Specific details on test material used for the study:
- - Analytical purity: > 99%- Lot/batch No.: 0160405- Expiration date of the lot/batch: 21/02/2018
Results and discussion
Melting / freezing point
- Key result
- Atm. press.:
- ca. 1 atm
- Decomposition:
- yes
- Decomp. temp.:
- ca. 179.9 °C
Any other information on results incl. tables
Pre-Test
Begin of changes was visible at 192.7 °C (getting darker). The test substance was completely black at 195.3 °C. The last changes were nearly explosively.Decomposition was stated.
Main Study
The following values were recorded:
Values Main Study
Decomposition | Begin | End |
First determination | 180.0 °C (453.2 K) | 182.2 °C (455.4 K) |
Second determination | 179.9 °C (453.1 K) | 181.7 °C (454.9 K) |
Validity
As the test substance decomposes no validity criteria must be considered.
Result
The determination was performed in duplicate. In both determinations, no melting point could be detected, because of decomposition of the test substance.
Beginning decomposition was determined with
179.9 °C (453.1 K)
Signs for explosive properties were visible.
Applicant's summary and conclusion
- Conclusions:
- The determination was performed in duplicate. In both determinations, no melting point could be detected, because of decomposition of the test substance. Beginning decomposition was determined with 179.9 °C (453.1 K). Signs for explosive properties were visible.
- Executive summary:
The melting point of the test item was investigated with a not-GLP compliant study, following the standard guideline OECD TG 102 (capillary method). The determination was performed in duplicate. In both determinations, no melting point could be detected, because of decomposition of the test item. Beginning decomposition was determined with 179.9 °C (453.1 K). Signs for explosive properties were visible.
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