Registration Dossier

Administrative data

Endpoint:
surface tension
Type of information:
(Q)SAR
Adequacy of study:
key study
Study period:
2013
Reliability:
2 (reliable with restrictions)
Justification for type of information:
QSAR prediction: migrated from IUCLID 5.6

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2013

Materials and methods

Test guideline
Qualifier:
no guideline available
Principles of method if other than guideline:
QSAR approach: Different tools were used, when possible, in order to apply a consensus approach and thus enhance the reliability of the predictions. In fact, a single in silico prediction model may provide acceptable results. However, by definition all models are simulation of reality, and therefore they will never be completely accurate; sometimes a single model will not work. When multiple models and multiple approaches are combined in a single consensus score, more accurate predictions can be achieved.
If two prediction methods that use data and different approaches are consistent, the reliability of prediction is better. The errors of a model/approach should be different from another, and therefore compensate.

Several computational tools are nowadays available for applying in silico approaches. Among them, for QSAR predictions the following was selected and used for the endpoint:
ACD/PhysChem Suite (Advanced Chemistry Development, Inc., Pharma Algorithms, Inc.) (release 2012) is a suite of comprehensive tools for the prediction of basic physicochemical properties. Predict logP, logD, aqueous solubility, pKa and an array of molecular properties in seconds, within one interface, and simply from chemical structure. The fragment-based models offer unsurpassed accuracy and cover a good breadth of chemical space, giving an instant insight into the properties and behaviour of the compounds of interest.
GLP compliance:
no
Type of method:
other: in silico prediction

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Surface tension
Surface tension:
44.18 other: dyne/cm
Remarks on result:
other: temperature and concentration not available

Any other information on results incl. tables

The surface tension of methyl 3-α,7-α-diacetoxy-12-oxo-5-β-cholan-24-oate is equal to 44.18 dyne/cm (error: ±5).

Applicant's summary and conclusion

Conclusions:
The surface tension of methyl 3-α,7-α-diacetoxy-12-oxo-5-β-cholan-24-oate is equal to 44.18 dyne/cm (error: ±5)