Registration Dossier
Registration Dossier
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EC number: 214-071-2 | CAS number: 1077-28-7
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 06-2017
- 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 guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- not specified
- GLP compliance:
- not specified
- Other quality assurance:
- ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- 5-(dithiolan-3-yl)valeric acid
- EC Number:
- 214-071-2
- EC Name:
- 5-(dithiolan-3-yl)valeric acid
- Cas Number:
- 1077-28-7
- Molecular formula:
- C8H14O2S2
- IUPAC Name:
- 5-(1,2-dithiolan-3-yl)pentanoic acid
- Reference substance name:
- unknown
- IUPAC Name:
- unknown
- Reference substance name:
- Water
- EC Number:
- 231-791-2
- EC Name:
- Water
- Cas Number:
- 7732-18-5
- Molecular formula:
- H2O
- IUPAC Name:
- dihydrogen oxide
- Test material form:
- solid: bulk
- Details on test material:
- This composition is the usual techical grade of AlzChem AG. It will be used when test substance has this composition (or is very closed) or no specific information is available
Constituent 1
impurity 1
impurity 2
- Specific details on test material used for the study:
- Batch: 717841
Results and discussion
Melting / freezing point
- Key result
- Melting / freezing pt.:
- ca. 59 °C
- Atm. press.:
- ca. 1 013 hPa
- Decomposition:
- no
Applicant's summary and conclusion
- Conclusions:
- Alpha-lipoic acid has a melting point of 59 °C at 1013 hPa.
- Executive summary:
The melting temperature from a-Lipoic acid is measured by Differential-Scanning-Calorimetry. The test is according to EC 440/2008 A.1. The substance showed a melting temperature of T = 59 °C.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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