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EC number: 243-497-1 | CAS number: 20073-13-6
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Experimental starting date:09 March 2021
Experimental completion date:14 March 2021 - Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 022
- Report date:
- 2022
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- effusion method: vapour pressure balance
Test material
- Reference substance name:
- Methyl [1α,2β(Z)]-(±)-3-oxo-2-(pent-2-enyl)cyclopentaneacetate
- EC Number:
- 243-497-1
- EC Name:
- Methyl [1α,2β(Z)]-(±)-3-oxo-2-(pent-2-enyl)cyclopentaneacetate
- Cas Number:
- 20073-13-6
- Molecular formula:
- C13H20O3
- IUPAC Name:
- methyl 2-[(1S,2S)-3-oxo-2-[(2Z)-pent-2-en-1-yl]cyclopentyl]acetate
Constituent 1
- Specific details on test material used for the study:
- Identification: Methyljasmonate
Chemical name: Methyl 3-oxo-2-(pent-2-enyl)cyclopentaneacetate
CAS number: 39924-52-2
Appearance/Physical State: Clear colorless liquid
Lot number: 0900175
Purity: 99.03%
Expiry date: 25 March 2023
Storage conditions: Approximately 4 °C, in the dark
Results and discussion
Vapour pressure
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 0.064 Pa
Any other information on results incl. tables
A total of 10 runs were started for the main sequence, equilibrium has been taken over all 10 runs and, therefore, all 10 runs have been used to calculate the definitive vapor pressure of the test item.
The results may represent rounded values obtained by calculations based on the exact raw data.
The values of vapor pressure at 25 °C, extrapolated from each graph, are summarized in the following table:
Run | Log10 [Vp(25 ºC)] |
1 | -1.17 |
2 | -1.15 |
3 | -1.15 |
4 | -1.13 |
5 | -1.32 |
6 | -1.27 |
7 | -1.19 |
8 | -1.19 |
9 | -1.22 |
10 | -1.21 |
Mean | -1.20 |
Applicant's summary and conclusion
- Conclusions:
- The vapor pressure of the test item has been determined to be 6.32 x 10^-2 Pa at 25 ºC.
- Executive summary:
The vapor pressure of Methyljasmonate has been determined to be 6.32 x 10-2 Pa at 25 °C, using the vapor pressure balance method, designed to be compatible with Method A.4 Vapour Pressure of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 104 of the OECD Guidelines for Testing of Chemicals, 23 March 2006.
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