OPERA Model Calculation Details: Vapor Pressure

Structural image of 3'-Chloro-5-fluoro-5'-methyl[1,1'-biphenyl]-2-carboxylic acid
Chemical Identifiers
Preferred name: 3'-Chloro-5-fluoro-5'-methyl[1,1'-biphenyl]-2-carboxylic acid
DTXSID: DTXSID80690327
DTXCID: DTXCID80641076
CASRN: 1261908-15-9
Molecular weight: 264.68
Model Results
Model name: OPERA_VP
Model source: OPERA2.8
Property name: Vapor Pressure
Property description: The pressure exerted by a vapor in thermodynamic equilibrium with the liquid phase in a closed system at a given temperature
Experimental value: Experimental value from OPERA2.8
 N/A
Predicted value: Predicted value from the model
1.78E-06 mmHg
Confidence level:  Confidence level is calculated from the accuracy of the predictions of the five nearest neighbors weighted by their distance to the query chemical
0.505
Combined applicability domain:  Combined applicability domain from multiple AD measures
Inside training set (
Global AD  Global applicability domain via the leverage approach
= 1) and fair local representation (0.4 ≤
Local AD index Local applicability domain index is relative to the similarity of the query chemical to its five nearest neighbors from the training set
= 0.45 ≤ 0.6)
Model Performance
Vapor Pressure Model Results Histogram of Vapor Pressure Data
Weighted kNN model statistics
Training (75%) 5-fold CV (75%) Test (25%)
R2 RMSE Q2 RMSE R2 RMSE
0.91 1.08 0.91 1.08 0.92 1.0

Model summary in QSAR Model Reporting Format (QMRF)
Nearest Neighbors from Model Knowledge Base
Neighbor: 1
Measured:  6.46E-05 mmHg
Predicted: Five fold cross validation prediction for the neighbor
 6.61E-06  mmHg

Structural image of Benzoin
Benzoin

 Neighbor: 2
Measured:  8.32E-08 mmHg
Predicted: Five fold cross validation prediction for the neighbor
 2.75E-06  mmHg

Structural image of Fenpicionil
Fenpicionil

 Neighbor: 3
Measured:  6.61E-06 mmHg
Predicted: Five fold cross validation prediction for the neighbor
 1.05E-04  mmHg

Structural image of 2-Naphthalenecarboxylic acid
2-Naphthalenecarboxylic acid

 Neighbor: 4
Measured:  1.41E-06 mmHg
Predicted: Five fold cross validation prediction for the neighbor
 1.29E-04  mmHg

Structural image of Clorophene
Clorophene

 Neighbor: 5
Measured:  2.09E-07 mmHg
Predicted: Five fold cross validation prediction for the neighbor
 3.89E-10  mmHg

Structural image of 1-Hydroxyanthraquinone
1-Hydroxyanthraquinone