Molecule card · MolClass #1981
Letrozole
Letrozole: molecular structure, identifiers, source datasets and 13 saved model results in MolClass.
1 source records · 13 model builds with saved results
Explore classification modelsStructure and identifiers
- Imported compound names
- LetrozoleFlucanozole Synergizer · compound_name
- MolClass ID
- 1981
- InChIKey
- HPJKCIUCZWXJDR-UHFFFAOYSA-N
- Canonical SMILES
- N#Cc1ccc(cc1)C(c2ccc(C#N)cc2)n3cncn3
- Standard InChI
- InChI=1S/C17H11N5/c18-9-13-1-5-15(6-2-13)17(22-12-20-11-21-22)16-7-3-14(10-19)4-8-16/h1-8,11-12,17H
- Stored Murcko scaffold
- n1cnn(c1)C(c2ccccc2)c3ccccc3
Registry normalization: MIGRATED_RAW. A registry entry does not establish drug approval or clinical use.
Molecules with the same Murcko scaffold
Exact matches to the stored ring-and-linker framework. Sharing a scaffold does not by itself establish activity or applicability to a model.
No other molecules currently have this stored scaffold.
Calculated molecular properties
Stored descriptor calculations, not measured experimental values.
- Hydrogen bond acceptors
- 4
- CDK 2.12 · 2026-08-19
- Hydrogen bond donors
- 0
- CDK 2.12 · 2026-08-19
- Rotatable bonds
- 3
- CDK 2.12 · 2026-08-19
- Topological polar surface area
- 78.29 Ų
- CDK 2.12 · 2026-08-19
- Molecular weight
- 285.303 g/mol
- CDK 2.12 · 2026-08-19
- XLogP
- 2.471
- CDK 2.12 · 2026-08-19
Saved model predictions
Computational predictions, not experimental measurements or clinical guidance. Results depend on the model build; applicability indicates similarity to its training chemistry.
Mitochondrial Fusion
Ensemble · model #19 · build #137
inactive
- Model confidence
- 98.1%
- Applicability domain
- In domain
- Scaffold similarity
- 66.8%
Recorded
Anti-fungal drug pump selectivity
Ensemble · model #18 · build #29
inactive
- Model confidence
- 71.9%
- Applicability domain
- In domain
- Scaffold similarity
- 65.3%
Recorded
Toxcicity
Ensemble · model #17 · build #28
toxicity reported
- Model confidence
- 74.3%
- Applicability domain
- Outside domain
- Scaffold similarity
- 40.9%
Recorded
Molecule Aggregation
Ensemble · model #16 · build #27
Aggregator
- Model confidence
- 50.2%
- Applicability domain
- Outside domain
- Scaffold similarity
- 30.2%
Recorded
Metabolite Likeness
Ensemble · model #15 · build #26
ZINC
- Model confidence
- 82.1%
- Applicability domain
- Outside domain
- Scaffold similarity
- 36.1%
Recorded
Molecule Autofluorescence
LibSVM · model #13 · build #152
Autofluorescence
- Model confidence
- 100.0%
- Applicability domain
- In domain
- Scaffold similarity
- 54.5%
Recorded
Cell Cycle Activation/Inhibition
NaiveBayes · model #10 · build #21
cellcycle-
- Model confidence
- 85.8%
- Applicability domain
- Outside domain
- Scaffold similarity
- 31.5%
Recorded
Blood Brain Barrier
RandomForest · model #7 · build #151
BBB+
- Model confidence
- 81.0%
- Applicability domain
- Outside domain
- Scaffold similarity
- 32.2%
Recorded
Derivation and validation of toxicophores for mutagenicity prediction
RandomForest · model #6 · build #15
nonmutagen
- Model confidence
- 53.0%
- Applicability domain
- Outside domain
- Scaffold similarity
- 38.2%
Recorded
Benchmark data set for in silico prediction of Ames mutagenicity
Ensemble2 · model #5 · build #134
Toxic
- Model confidence
- 77.6%
- Applicability domain
- Outside domain
- Scaffold similarity
- 38.4%
Recorded
A predictive model for drug bioaccumulation and bioactivity in Caenorhabditis elegans
NaiveBayes · model #4 · build #14
none
- Model confidence
- 82.9%
- Applicability domain
- Outside domain
- Scaffold similarity
- 32.2%
Recorded
ADME evaluation in drug discovery: Correlation of Caco-2 permeation with simple molecular properties
Ensemble · model #2 · build #244
app-
- Model confidence
- 60.6%
- Applicability domain
- Outside domain
- Scaffold similarity
- 27.8%
Recorded
Chemical genetics reveals a complex functional ground state of neural stem cells
Ensemble · model #1 · build #16
Mutual
- Model confidence
- 92.9%
- Applicability domain
- Outside domain
- Scaffold similarity
- 37.6%
Recorded
Source datasets
Dataset registrations and identifiers stored in MolClass.
Flucanozole Synergizer
Dataset #3 · Letrozole