Registration Dossier
Registration Dossier
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EC number: 209-127-8 | CAS number: 556-50-3
Stability: thermal, sunlight, metals
Administrative data
- Endpoint:
- thermal stability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 25 June - 23 October 2020
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 020
- Report date:
- 2020
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- other: UN Manual of Tests and Criteria
- Version / remarks:
- 7th edition
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 113 (Screening Test for Thermal Stability and Stability in Air)
- Version / remarks:
- 1981
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- N-glycylglycine
- EC Number:
- 209-127-8
- EC Name:
- N-glycylglycine
- Cas Number:
- 556-50-3
- Molecular formula:
- C4H8N2O3
- IUPAC Name:
- N-glycylglycine
- Test material form:
- solid: crystalline
- Details on test material:
- Batch Number: S119 0711
Storage conditions: room temperature
Constituent 1
Results and discussion
For thermal stability study
- Test substance thermally stable:
- yes
Operating temperature
- Key result
- Operating temp.:
- ca. 20 - <= 500 °C
- Remarks on result:
- other: an endothermic effect starting at a temperature of approx. 210°C was observed (melting of the test item). A second endothermic effect was observed starting at a temperature of approx. 250°C (decomposition of test item starting at approx. 230°C)
Any other information on results incl. tables
The test item in closed glass crucibles showed an endothermic effect starting at a temperature of approx. 210 °C, which can be assigned to the melting of the test item accompanied its decomposition. A second endothermic effect was observed starting at a temperature of approx. 250 °C. The results of the DSC-measurements are summarized below:
Measurement No. | Sample weight / mg | Onset / °C | Energy / J/g |
PN19900 | 5.02 | 210 | +300 (endothermic) |
PN19906 | 4.02 | 210 | +290 (endothermic) |
Applicant's summary and conclusion
- Conclusions:
- The test item Glycyl glycine (CAS no. 556-50-3) showed an endothermic effect starting at a temperature of approx. 210 °C, which can be assigned to the melting of the test item accompanied by its decomposition. A second endothermic effect was observed starting at a temperature of approx. 250 °C.
- Executive summary:
The test item Glycyl glycine (CAS no. 556-50-3) showed an endothermic effect starting at a temperature of approx. 210 °C, which can be assigned to the melting of the test item accompanied by its decomposition. A second endothermic effect was observed starting at a temperature of approx. 250 °C.
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