TEST Model Calculation Details: Bioconcentration Factor

Structural image of 2,4'-Difluoro-2'-hydroxy[1,1'-biphenyl]-4-carboxylic acid
Chemical Identifiers
Preferred name: 2,4'-Difluoro-2'-hydroxy[1,1'-biphenyl]-4-carboxylic acid
DTXSID: DTXSID00689415
DTXCID: DTXCID20640164
CASRN: 1261988-93-5
Molecular weight: 250.201
Model Results
Model name: TEST_BCF
Model source: TEST5.1.3
Property name: Bioconcentration Factor
Property description: Bioconcentration factor: the ratio of the chemical concentration in fish as a result of absorption via the respiratory surface to that in water at steady state
Experimental value: Experimental value from TEST5.1.3
 N/A
Predicted value: Predicted value from the model
20.4 L/kg
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(L/kg)
Hierarchical clustering 1.20
Single model 1.32
Group contribution 1.64
Nearest neighbor 1.07
Consensus 1.31
Model Performance
Bioconcentration Factor Model Results Histogram of Bioconcentration Factor Data
Consensus model statistics
Training (80%) Test (20%)
R2 RMSE MAE Coverage R2 RMSE MAE Coverage
0.85 0.54 0.42 1.00 0.75 0.67 0.52 0.93

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 0.52
Similarity coefficient ≥ 0.5 1.09
*Mean absolute error in log10(L/kg)
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(L/kg)
Test chemical
Measured: N/A
Predicted: 1.31
Structural image of 2,4'-Difluoro-2'-hydroxy[1,1'-biphenyl]-...
2,4'-Difluoro-2'-hydroxy[1,1'-biphenyl]-... 		Similarity: 0.56
Measured: 2.10
Predicted: 2.00
Structural image of Dichlorophen
Dichlorophen 		Similarity: 0.53
Measured: 1.67
Predicted: 3.23
Structural image of Triclosan
Triclosan 		Similarity: 0.51
Measured: 2.12
Predicted: 3.73
Structural image of Hexachlorophene
Hexachlorophene
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 0.42
Similarity coefficient ≥ 0.5 0.38
*Mean absolute error in log10(L/kg)
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(L/kg)
Test chemical
Measured: N/A
Predicted: 1.31
Structural image of 2,4'-Difluoro-2'-hydroxy[1,1'-biphenyl]-...
2,4'-Difluoro-2'-hydroxy[1,1'-biphenyl]-... 		Similarity: 0.62
Measured: 0.549
Predicted: 0.0600
Structural image of 2,6-Naphthalenedicarboxylic acid
2,6-Naphthalenedicarboxylic acid 		Similarity: 0.59
Measured: 2.09
Predicted: 1.71
Structural image of 2-Hydroxy-4-methoxybenzophenone
2-Hydroxy-4-methoxybenzophenone 		Similarity: 0.58
Measured: 0.580
Predicted: 0.627
Structural image of 5-Chloro-3-[2-(1,5-dioxo-1,5-dihydronaph...
5-Chloro-3-[2-(1,5-dioxo-1,5-dihydronaph... 		Similarity: 0.57
Measured: -0.196
Predicted: 0.393
Structural image of 4,5-Dichloronaphthalene-1,8-dicarboxylic...
4,5-Dichloronaphthalene-1,8-dicarboxylic... 		Similarity: 0.54
Measured: 0.318
Predicted: 0.450
Structural image of 3-Hydroxy-2-naphthoic acid
3-Hydroxy-2-naphthoic acid
Similarity: 0.52
Measured: 0.698
Predicted: 1.34
Structural image of 3-Hydroxy-2-naphthanilide
3-Hydroxy-2-naphthanilide 		Similarity: 0.52
Measured: 1.99
Predicted: 1.93
Structural image of 9,10-Anthracenedione, 1-amino-2-(4-bromo...
9,10-Anthracenedione, 1-amino-2-(4-bromo... 		Similarity: 0.52
Measured: 2.37
Predicted: 1.72
Structural image of 1-Hydroxyanthraquinone
1-Hydroxyanthraquinone