Registration Dossier
Registration Dossier
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EC number: 617-349-5 | CAS number: 82543-17-7
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2000-12-11 to 2001-01-17
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 001
- Report date:
- 2001
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Version / remarks:
- No Version available
- GLP compliance:
- yes
- Type of method:
- effusion method: vapour pressure balance
Test material
- Reference substance name:
- 21a-Homo-6 alpha,7 alpha,15 alpha,16 alpha-tetrahydro-bis-3' H-cyclopropa[1',2':6,7;1'',2'':15,16]-5 beta,17 alpha-pregn-20-yne-3 beta,5,17,21a-tetrol
- EC Number:
- 617-349-5
- Cas Number:
- 82543-17-7
- Molecular formula:
- C24 H34 O4
- IUPAC Name:
- 21a-Homo-6 alpha,7 alpha,15 alpha,16 alpha-tetrahydro-bis-3' H-cyclopropa[1',2':6,7;1'',2'':15,16]-5 beta,17 alpha-pregn-20-yne-3 beta,5,17,21a-tetrol
- Test material form:
- solid: bulk
Constituent 1
Results and discussion
Vapour pressure
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- < 0 Pa
Transition / decomposition
- Key result
- Transition / decomposition:
- yes
- Transition temp.:
- 131 °C
- Vapour pressure at 10°C above transition temperature:
- 0.058 Pa
Applicant's summary and conclusion
- Executive summary:
Since ZK 34506 decomposes at temperatures above 131 °C, only an estimation of the vapor pressure at 25 °C could be performed from the increase in weight which would have been exactly equal to the sensitivity of the microbalance of the vapor pressure balance, to be: P < 1E-05 Pa (1E-07 mm Hg).
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