amiloride

Ligand id: 2421

Name: amiloride

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Structure and Physico-chemical Properties

2D Structure
Calculated Physico-chemical Properties
Hydrogen bond acceptors 8
Hydrogen bond donors 4
Rotatable bonds 2
Topological polar surface area 159.29
Molecular weight 229.05
XLogP -1.18
No. Lipinski's rules broken 0

Molecular properties generated using the CDK

View interactive charts of activity data from ChEMBL and GtoPdb across species (New!)

Selectivity at human ion channels
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Target Type Action Affinity Units Concentration range (M) Reference
ENaCαβγ Channel blocker - 6.7 – 7.0 pIC50 -
pIC50 6.7 – 7.0 (IC50 2x10-7 – 1x10-7 M)
ASIC1 Channel blocker - 4.6 – 5.0 pIC50 -
pIC50 5.0 (IC50 1x10-5 M) ASIC1a
pIC50 4.6 – 4.7 (IC50 2.3x10-5 – 2.1x10-5 M) ASIC1b
ASIC2 Channel blocker - 4.6 pIC50 -
pIC50 4.6 (IC50 2.8x10-5 M)
ASIC3 Channel blocker - 4.2 – 4.8 pIC50 -
pIC50 4.2 – 4.8 (IC50 6.3x10-5 – 1.6x10-5 M) transient component only - sustained component enhanced by 200μM amiloride at pH 4
TRPP2 Channel blocker - 3.8 pIC50 -
pIC50 3.8 (IC50 1.43x10-4 M)
TRPC7 Channel blocker - - - -
TRPV2 Channel blocker - - - -
Selectivity at human transporters
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Target Type Action Affinity Units Concentration range (M) Reference
Sodium/hydrogen exchanger 5 Inhibitor Inhibition 4.7 pKi - 4
pKi 4.7 (Ki 2.1x10-5 M) [4]
Selectivity at mouse ion channels
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Target Type Action Affinity Units Concentration range (M) Reference
TRPC6 Channel blocker Antagonist 3.9 pIC50 - 2
pIC50 3.9 (IC50 1.29x10-4 M) [2]
Voltage: -60.0 mV
TRPA1 Channel blocker Inhibition 3.3 pIC50 - 7
pIC50 3.3 [7]
Voltage: -80.0 mV
Selectivity at rabbit transporters
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Target Type Action Affinity Units Concentration range (M) Reference
Sodium/hydrogen exchanger 2 Inhibitor Inhibition 6.3 – 7.1 pKi - 4
pKi 6.3 – 7.1 (Ki 5x10-7 – 8x10-8 M) [4]
Selectivity at rat transporters
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Target Type Action Affinity Units Concentration range (M) Reference
Sodium/hydrogen exchanger 1 Inhibitor Inhibition 5.8 – 6.0 pKi - 4
pKi 5.8 – 6.0 (Ki 1.6x10-6 – 1x10-6 M) [4]
Sodium/hydrogen exchanger 3 Inhibitor Inhibition <4.0 pKi - 4
pKi <4.0 (Ki >1x10-4 M) [4]
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