Registration Dossier
Registration Dossier
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EC number: 276-957-5 | CAS number: 72869-86-4
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2005-12-22 - 2007-01-29
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: according to EU A.1
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 007
- Report date:
- 2007
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- GLP compliance:
- not specified
- Type of method:
- thermal analysis
Test material
- Reference substance name:
- 7,7,9(or 7,9,9)-trimethyl-4,13-dioxo-3,14-dioxa-5,12-diazahexadecane-1,16-diyl bismethacrylate
- EC Number:
- 276-957-5
- EC Name:
- 7,7,9(or 7,9,9)-trimethyl-4,13-dioxo-3,14-dioxa-5,12-diazahexadecane-1,16-diyl bismethacrylate
- Cas Number:
- 72869-86-4
- Molecular formula:
- C23H38N2O8
- IUPAC Name:
- 7,7,9(or 7,9,9)-trimethyl-4,13-dioxo-3,14-dioxa-5,12-diazahexadecane-1,16-diyl bismethacrylate
- Details on test material:
- - Name of test material (as cited in study report): Diurethane dimethacrylate
- Substance type: liquid
- Physical state: liquid
- Analytical purity: 98.5 %
- Lot/batch No.: 1250391114
- Storage condition of test material: < 30 degree C
Constituent 1
Results and discussion
Melting / freezing point
- Atm. press.:
- 992 hPa
- Decomposition:
- no
- Sublimation:
- no
- Remarks on result:
- other: no melting point was detected
Applicant's summary and conclusion
- Conclusions:
- no melting point
- Executive summary:
The DSC-curve shows no melting peak in the heating cycle, but a relaxation peak and an endothermic Cp-step at -36 degree C (second heating), characteristic for a glass transition, i.e. the test item solidifies amorphously in the glassy state.
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