Registration Dossier
Registration Dossier
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EC number: 939-455-3 | CAS number: 1469983-49-0
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- From 16 May 2012 to 25 January 2013
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- 2012-12-15
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- >= 60.9 - <= 61.9 °C
- Atm. press.:
- 1 013 hPa
- Conclusions:
- The mean melting point of the test item was 61.4 ± 0.5 °C.
- Executive summary:
The melting point of the test item (= substance EC 939-455-3) was investigated in a GLP-compliant study performed in accordance with OECD Guideline 102 (Melting point / Melting Range) and EU Method A.1 (Melting / Freezing Temperature). The mean melting point of the test item was 61.4 ± 0.5 °C.
Reference
Six assays were performed during the test, the temperature values obtained for the melting point varied between 52.6 and 67.7 °C.
The mean value for the melting point a is explained as the mean of at least two assays for which the melting point value or the boiling point value are in the range of the estimated accuracy of the method: ± 0.5 °C up to 326.9 °C and ± 2.0 °C
above 326.9 °C.
Two assays were contained between the range for the melting point.
| Assays No. | Melting point (°C) |
| 1 | / |
| 2 | 67.7 |
| 3 | 52.6 |
| 4 | 62.3 |
| 5 | 61.5 |
| 6 | 61.2 |
/ corresponds to the non integration of the curve.
The results written in bold were taken into account.
Description of key information
The melting point of the substance 1-Propanaminium, N-(3-aminopropyl)-2-hydroxy-N,N-dimethyl-3-sulfo-, N-(C8-18(even numbered) acyl) derivs., hydroxides, inner salts (EC 939-455-3) was investigated in a GLP-compliant study (Ricau, 2013) performed in accordance with OECD Guideline 102 (Melting point / Melting Range) and EU Method A.1 (Melting / Freezing Temperature). The mean melting point of the substance was 61.4 ± 0.5 °C.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 61.4 °C
Additional information
The melting point of the substance 1-Propanaminium, N-(3-aminopropyl)-2-hydroxy-N,N-dimethyl-3-sulfo-, N-(C8-18(even numbered) acyl) derivs., hydroxides, inner salts (EC 939-455-3) was investigated in a GLP-compliant study (Ricau, 2013) performed in accordance with standard methods, without deviations. The study is considered as reliable (Klimisch 1) and was selected as key study for the endpoint.
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