Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 210-073-2 | CAS number: 604-68-2
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 05 May - 26 September 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 guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- from 27 July 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- α-D-glucose pentaacetate
- EC Number:
- 210-073-2
- EC Name:
- α-D-glucose pentaacetate
- Cas Number:
- 604-68-2
- Molecular formula:
- C16H22O11
- IUPAC Name:
- 1,2,3,4,6-penta-O-acetyl-alpha-D-glucopyranose
- Reference substance name:
- β-D-glucose pentaacetate
- EC Number:
- 210-074-8
- EC Name:
- β-D-glucose pentaacetate
- Cas Number:
- 604-69-3
- Molecular formula:
- C16H22O11
- IUPAC Name:
- 1,2,3,4,6-penta-O-acetyl-beta-D-glucopyranose
- Reference substance name:
- Water
- EC Number:
- 231-791-2
- EC Name:
- Water
- Cas Number:
- 7732-18-5
- Molecular formula:
- H2O
- IUPAC Name:
- Oxidane
- Reference substance name:
- Unknown impurities.
- Molecular formula:
- Not available as unknown impurities.
- IUPAC Name:
- Unknown impurities.
- Test material form:
- solid: crystalline
- Remarks:
- Crystalline powder
- Details on test material:
- Batch No: 14126200
Storage: at room temperature, protected from light
Constituent 1
impurity 1
impurity 2
impurity 3
Results and discussion
Melting / freezing point
- Key result
- Melting / freezing pt.:
- >= 90.4 - <= 91.7 °C
- Atm. press.:
- >= 1 005 - <= 1 007 hPa
- Decomposition:
- yes
- Decomp. temp.:
- ca. 200 °C
Any other information on results incl. tables
A first endothermic effect (double peak) could be observed in the temperature range of 85 - 120 °C (melting) and a second one in the temperature range of 270 – 370 °C.
During the heating phase a distinct endothermic effect was observed in the temperature range of 85 – 120 °C, which can be assigned to the melting of the test item. As the effect consists of a double signal and the onset temperatures in both tests deviate by more than 0.5 K from their mean value of 91.0 °C, the test item has a melting range from 90.4 to 91.7 °C.
| No. | Sample weight (mg) | Onset of effect (°C) | Range of effect (°C) | Weight loss (mg) | Atmospheric pressure (hPa) |
| 1 | 12.05 | 91.67 - |
85 - 120 (endo) 270 - 370 (endo) |
11.79 | 1007.1 |
| 2 | 10.13 | 90.39 - |
85 - 120 (endo) 270 - 370 (endo) |
9.98 | 1004.6 |
Applicant's summary and conclusion
- Conclusions:
- The test item Alpha-D-glucose pentaacetate (CAS no. 604-68-2) has a melting range of 90.4 to 91.7 °C at atmospheric pressure (1005 - 1007 hPa) as determined by differential scanning calorimetry according to Regulation EC No. 440/2008 Method A.1. and OECD Test Guideline 102 (1995).
- Executive summary:
The test item Alpha-D-glucose pentaacetate (CAS no.604 -68 -2) has a melting range of 90.4 to 91.7 °C at atmospheric pressure (1005 - 1007 hPa) as determined by differential scanning calorimetry according to Regulation EC No. 440/2008 Method A.1. and OECD Test Guideline 102 (1995).
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
