## Endpoint to Predict
- Endpoint scope: assay
- Measurement type: Inhibition
- Label type: binary
- Binary semantics: activity
- Assay description: Inhibition of factor 11a (unknown origin) at IC90 using S-2366 as substrate preincubated for 1 min followed by chromogenic substrate addition and measured for 2 mins in presence of AT-III
- Assay organism: Homo sapiens
- Target name: Coagulation factor XI
- Target type: SINGLE PROTEIN
- Target organism: Homo sapiens

## Reference Molecule A
- Canonical SMILES: CC(=O)N[C@H]1[C@H](O[C@@H]([C@H](O[C@@H]2O[C@@H](C)[C@@H](OS(=O)(=O)[O-])[C@@H](OS(=O)(=O)O)[C@@H]2O)[C@@H](O)CO)[C@H](O)C(=O)[O-])O[C@H](COS(=O)(=O)[O-])[C@H](OS(=O)(=O)[O-])[C@@H]1O[C@@H]1O[C@H](C(=O)[O-])[C@@H](O[C@@H]2O[C@H](COS(=O)(=O)[O-])[C@H](OS(=O)(=O)[O-])[C@H](O[C@@H]3O[C@H](C(=O)[O-])[C@@H](O[C@@H]4O[C@H](COS(=O)(=O)[O-])[C@H](OS(=O)(=O)[O-])[C@H](O[C@@H]5O[C@H](C(=O)[O-])[C@@H](O[C@@H]6O[C@H](COS(=O)(=O)[O-])[C@H](OS(=O)(=O)[O-])[C@H](O[C@@H]7O[C@H](C(=O)[O-])[C@@H](O[C@@H]8O[C@H](COS(=O)(=O)[O-])[C@H](OS(=O)(=O)[O-])[C@H](O[C@@H]9OC(C(=O)[O-])=C[C@H](O[C@@H]%10O[C@@H](C)[C@@H](OS(=O)(=O)[O-])[C@@H](OS(=O)(=O)O)[C@@H]%10O)[C@H]9O)[C@H]8NC(C)=O)[C@H](O[C@@H]8O[C@@H](C)[C@@H](OS(=O)(=O)[O-])[C@@H](OS(=O)(=O)O)[C@@H]8O)[C@H]7O)[C@H]6NC(C)=O)[C@H](O[C@@H]6O[C@@H](C)[C@@H](OS(=O)(=O)[O-])[C@@H](OS(=O)(=O)O)[C@@H]6O)[C@H]5O)[C@H]4NC(C)=O)[C@H](O[C@@H]4O[C@@H](C)[C@@H](OS(=O)(=O)[O-])[C@@H](OS(=O)(=O)O)[C@@H]4O)[C@H]3O)[C@H]2NC(C)=O)[C@H](O[C@@H]2O[C@@H](C)[C@@H](OS(=O)(=O)[O-])[C@@H](OS(=O)(=O)O)[C@@H]2O)[C@H]1O.[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+]
- Properties:
- ChEMBL ID: CHEMBL4786745
- Molecule type: Unknown
- Molecular weight: 5196.59
- Heavy atoms: 312
- Hydrogen bond donors: 25
- Hydrogen bond acceptors: 145
- TPSA: 2409.34
- LogP: -113.01
- Rotatable bonds: 96
- Ring count: 16
- Formal charge: 0
- Fraction Csp3: 0.88
- QED: 0.02

## Known Reference Result on This Endpoint
- Molecule A clean result: activity label = 1
- This result is provided as context for predicting Molecule B on the same endpoint.

## Reference Molecule A Other ChEMBL Evidence
- type Inhibition; units %; comment Active

## Query Molecule B
- Canonical SMILES: CC(=O)N[C@H]1[C@H](O[C@@H]([C@H](O[C@@H]2O[C@@H](C)[C@@H](OS(=O)(=O)[O-])[C@@H](OS(=O)(=O)O)[C@@H]2O)[C@@H](O)CO)[C@H](O)C(=O)[O-])O[C@H](COS(=O)(=O)[O-])[C@H](OS(=O)(=O)[O-])[C@@H]1O[C@@H]1O[C@H](C(=O)[O-])[C@@H](O[C@@H]2O[C@H](COS(=O)(=O)[O-])[C@H](OS(=O)(=O)[O-])[C@H](O[C@@H]3O[C@H](C(=O)[O-])[C@@H](O[C@@H]4O[C@H](COS(=O)(=O)[O-])[C@H](OS(=O)(=O)[O-])[C@H](O[C@@H]5O[C@H](C(=O)[O-])[C@@H](O[C@@H]6O[C@H](COS(=O)(=O)[O-])[C@H](OS(=O)(=O)[O-])[C@H](O[C@@H]7OC(C(=O)[O-])=C[C@H](O[C@@H]8O[C@@H](C)[C@@H](OS(=O)(=O)[O-])[C@@H](OS(=O)(=O)O)[C@@H]8O)[C@H]7O)[C@H]6NC(C)=O)[C@H](O[C@@H]6O[C@@H](C)[C@@H](OS(=O)(=O)[O-])[C@@H](OS(=O)(=O)O)[C@@H]6O)[C@H]5O)[C@H]4NC(C)=O)[C@H](O[C@@H]4O[C@@H](C)[C@@H](OS(=O)(=O)[O-])[C@@H](OS(=O)(=O)O)[C@@H]4O)[C@H]3O)[C@H]2NC(C)=O)[C@H](O[C@@H]2O[C@@H](C)[C@@H](OS(=O)(=O)[O-])[C@@H](OS(=O)(=O)O)[C@@H]2O)[C@H]1O.[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+]
- Properties:
- ChEMBL ID: CHEMBL4796403
- Molecule type: Unknown
- Molecular weight: 4262.95
- Heavy atoms: 256
- Hydrogen bond donors: 21
- Hydrogen bond acceptors: 119
- TPSA: 1981.38
- LogP: -92.71
- Rotatable bonds: 79
- Ring count: 13
- Formal charge: 0
- Fraction Csp3: 0.88
- QED: 0.02

## Molecule Similarity
- Weighted Tanimoto: 1

Answer: 1