Registration Dossier
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EC number: 272-296-1 | CAS number: 68797-35-3
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2019
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 019
- Report date:
- 2019
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- capillary method
Test material
- Reference substance name:
- α-d-Glucopyranosiduronic acid, (3β,20β)-20-carboxy-11-oxo-30-norolean-12-en-3-yl 2-O-β-d-glucopyranuronosyl-, dipotassium salt
- EC Number:
- 272-296-1
- EC Name:
- α-d-Glucopyranosiduronic acid, (3β,20β)-20-carboxy-11-oxo-30-norolean-12-en-3-yl 2-O-β-d-glucopyranuronosyl-, dipotassium salt
- Cas Number:
- 68797-35-3
- Molecular formula:
- C42H62O16.2K
- IUPAC Name:
- α-d-Glucopyranosiduronic acid, (3β,20β)-20-carboxy-11-oxo-30-norolean-12-en-3-yl 2-O-β-d-glucopyranuronosyl-, dipotassium salt
Constituent 1
- Specific details on test material used for the study:
- Batch/Lot number: 3300/004/A17
Appearance: White to yellowish powder
EC number: 272-296-1
CAS number: 68797-35-3
Chemical name: α-d-Glucopyranosiduronic acid, (3β,20β)-20-carboxy-11- oxo-30-norolen-12-en-3-yl 2-O-β-d-glucopyranuronosyl-, dipotassium salt
Purity: 95% (TIDS)
Expiry (Retest) date: 25 October 2019
Storage conditions: Protected from humidity at controlled room temperature
Safety precautions: Routine safety precautions (lab coat, gloves, safety glasses, face mask) for unknown materials were applied to assure personnel health and safety.
Results and discussion
Melting / freezing point
- Key result
- Atm. press.:
- ca. 101.325 kPa
- Decomposition:
- yes
- Decomp. temp.:
- ca. 265 °C
- Remarks on result:
- not determinable
Applicant's summary and conclusion
- Executive summary:
The melting point study was performed according to the OECD 102 guideline.
Using a linear heating rate of 0.5°C/min, the test item was black by about 265°C (it can be considered as decomposition temperature) without melting. The test item appeared
to be charred. No melting point was observed, before the significant changes of consistency and colour of test item, which indicates degradation before the melting.
There was no melting point before degradation of test item (until approximately 265°C as estimated decomposition). Therefore, the melting point of test item was not interpretable.
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