Registration Dossier
Registration Dossier
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EC number: 424-660-8 | CAS number: -
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 23 Jul - 07 Oct, 1996
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: done under GLP and OECD method
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 997
- Report date:
- 1997
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Version / remarks:
- 84/449/EEC
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Version / remarks:
- Paris 1981
- Qualifier:
- according to guideline
- Guideline:
- other: OJEC L383 A26-47
- GLP compliance:
- yes
- Type of method:
- other: Balance method
Test material
- Reference substance name:
- -
- EC Number:
- 424-660-8
- EC Name:
- -
- Cas Number:
- 224631-15-6
- Molecular formula:
- Hill formula: C18H26N4O5S CAS formula: C18H26N4O5S
- IUPAC Name:
- 2,5-dioxopyrrolidin-1-yl (2S)-3-methyl-2-{[methyl({[2-(propan-2-yl)-1,3-thiazol-4-yl]methyl})carbamoyl]amino}butanoate
Constituent 1
Results and discussion
Vapour pressure
- Temp.:
- 25 °C
- Vapour pressure:
- 0 Pa
- Remarks on result:
- other: Determined by extrapolation of experimental data
Applicant's summary and conclusion
- Conclusions:
- Vapour Pressure determined to be 0.000046 Pa at 25°C
- Executive summary:
Vapour Pressure determined by balance method to be 4.6 x 10-5 Pa (3.46 x 10 -7 mmHg) by extrapolation of experimental data at 25°C.
The value quoted was determined by the extrapolation of
experimental data to 25°C. The calculation used a slope of
2000 in the vapour pressure relationship, this being the
shallowest slope observed for around 200 solid compounds.
This value was used because of the inherent difficulty in
extrapolating non-linear data, and provides an estimated
maximum value for the vapour pressure at 25°C.
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