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Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
29 October 2008 - 9 January 2009
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: The study has been performed according to OECD and/or EC guidelines and according to GLP principles.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2009
Report date:
2009

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
effusion method: by loss of weight or by trapping vaporisate

Test material

Constituent 1
Chemical structure
Reference substance name:
(5,6-Dimethyl-9-oxo-9H-xanthen-4-yl)acetic acid
EC Number:
700-141-4
Cas Number:
117570-53-3
Molecular formula:
C17H14O4
IUPAC Name:
(5,6-Dimethyl-9-oxo-9H-xanthen-4-yl)acetic acid
Constituent 2
Reference substance name:
(5,6-dimethyl-9-oxo-9H-xanthene-4-yl)acetic acid
IUPAC Name:
(5,6-dimethyl-9-oxo-9H-xanthene-4-yl)acetic acid
Details on test material:
- Name of test material (as cited in study report): ASA404 C8
- Substance type: Off-white powder
- Physical state: Solid
- Analytical purity: 99.9%
- Impurities (identity and concentrations): not indicated
- Lot/batch No.: 082401
- Expiration date of the lot/batch: 22 February 2009
- Stability under test conditions: stable
- Storage condition of test material: at room temperature in the dark

Results and discussion

Vapour pressure
Temp.:
20 °C
Vapour pressure:
< 0 Pa

Applicant's summary and conclusion

Conclusions:
The isothermal thermogravimetric effusion method was chosen for the determination of the vapour pressure of ASA404 C8. The vapour pressure of the test substance at 20°C (293K) was < 1.33 x 10-8 Pa = < 1.00 x 10-10 mm Hg.