TEST Model Calculation Details: Vapor Pressure

Structural image of 3-Hydroxy-4-methylpentanoic acid
Chemical Identifiers
Preferred name: 3-Hydroxy-4-methylpentanoic acid
DTXSID: DTXSID40505483
DTXCID: DTXCID30456293
CASRN: 5980-21-2
Molecular weight: 132.159
Model Results
Model name: TEST_VP
Model source: TEST5.1.3
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 TEST5.1.3
 N/A
Predicted value: Predicted value from the model
9.04E-04 mmHg
Combined applicability domain:  Combined applicability domain from multiple AD measures
Compound is inside TEST applicability domains
Consensus predictions
Predictions used in consensus prediction
Method Predicted value log10(mmHg)
Hierarchical clustering -3.20
Group contribution -3.07
Nearest neighbor -2.87
Consensus -3.04
Model Performance
Vapor Pressure Model Results Histogram of Vapor Pressure Data
Consensus model statistics
Training (80%) Test (20%)
R2 RMSE MAE Coverage R2 RMSE MAE Coverage
0.97 0.61 0.40 0.98 0.95 0.82 0.50 0.97

Nearest Neighbors from Test Set
Prediction results for nearest neighbors from the test set
Results for entire set vs
results for similar chemicals
Chemicals MAE*
Entire set 0.50
Similarity coefficient ≥ 0.5 0.42
*Mean absolute error in log10(mmHg)
Color legend
Color Range*
SC ≥ 0.9
0.8 ≤ SC < 0.9
0.7 ≤ SC < 0.8
0.6 ≤ SC < 0.7
0.6 < SC
*SC = similarity coefficient
Neighbor values in log10(mmHg)
Test chemical
Measured: N/A
Predicted: -3.04
Structural image of 3-Hydroxy-4-methylpentanoic acid
3-Hydroxy-4-methylpentanoic acid
Similarity: 0.81
Measured: -5.50
Predicted: -4.02
Structural image of 2-Hydroxyhexanoic acid
2-Hydroxyhexanoic acid
Similarity: 0.74
Measured: -2.47
Predicted: -2.75
Structural image of 1,2,3-Butanetriol
1,2,3-Butanetriol
Similarity: 0.70
Measured: -2.52
Predicted: -2.29
Structural image of 2-Ethyl-1,3-hexanediol
2-Ethyl-1,3-hexanediol
Similarity: 0.68
Measured: -1.70
Predicted: -1.46
Structural image of 1,3-Butanediol
1,3-Butanediol
Similarity: 0.63
Measured: -0.309
Predicted: -0.647
Structural image of 2-Methylbutanoic acid
2-Methylbutanoic acid
Similarity: 0.61
Measured: -0.646
Predicted: 0.243
Structural image of 4-Hydroxy-3-methylbutan-2-one
4-Hydroxy-3-methylbutan-2-one
Similarity: 0.59
Measured: 0.961
Predicted: 1.07
Structural image of 2-Methyl-3-butanol
2-Methyl-3-butanol
Similarity: 0.59
Measured: -0.507
Predicted: -0.613
Structural image of 4-Octanol
4-Octanol
Similarity: 0.59
Measured: 0.0900
Predicted: -0.330
Structural image of 2-Heptanol
2-Heptanol
Similarity: 0.58
Measured: -2.41
Predicted: -2.50
Structural image of 1,5-Pentanediol
1,5-Pentanediol
Nearest Neighbors from Training Set
Prediction results for nearest neighbors from the training set
Results for entire set vs
results for similar chemicals
Chemicals MAE*
Entire set 0.40
Similarity coefficient ≥ 0.5 0.53
*Mean absolute error in log10(mmHg)
Color legend
Color Range*
SC ≥ 0.9
0.8 ≤ SC < 0.9
0.7 ≤ SC < 0.8
0.6 ≤ SC < 0.7
0.6 < SC
*SC = similarity coefficient
Neighbor values in log10(mmHg)
Test chemical
Measured: N/A
Predicted: -3.04
Structural image of 3-Hydroxy-4-methylpentanoic acid
3-Hydroxy-4-methylpentanoic acid
Similarity: 0.76
Measured: -2.35
Predicted: -1.63
Structural image of 2,2,4-Trimethyl-1,3-pentanediol
2,2,4-Trimethyl-1,3-pentanediol
Similarity: 0.76
Measured: -5.54
Predicted: -5.69
Structural image of Glutaric acid
Glutaric acid
Similarity: 0.75
Measured: -0.708
Predicted: -0.660
Structural image of Pentanoic acid
Pentanoic acid
Similarity: 0.74
Measured: -7.48
Predicted: -6.32
Structural image of Malic acid
Malic acid
Similarity: 0.73
Measured: -2.06
Predicted: -1.56
Structural image of 2-Hydroxyisobutyric acid
2-Hydroxyisobutyric acid
Similarity: 0.72
Measured: 0.307
Predicted: 0.0633
Structural image of 5-Methylhexan-2-ol
5-Methylhexan-2-ol
Similarity: 0.71
Measured: 0.283
Predicted: 0.237
Structural image of 2-Methyl-1-pentanol
2-Methyl-1-pentanol
Similarity: 0.70
Measured: -1.09
Predicted: -1.57
Structural image of Lactic acid
Lactic acid
Similarity: 0.70
Measured: -2.82
Predicted: -3.60
Structural image of Propanedioic acid
Propanedioic acid
Similarity: 0.70
Measured: -1.89
Predicted: -0.720
Structural image of 2-Methyl-2,4-pentanediol
2-Methyl-2,4-pentanediol