For research use only.

Catalog No.S1483 Synonyms: HP873

1 publication

Iloperidone Chemical Structure

CAS No. 133454-47-4

Iloperidone (HP873) is a dopamine (D2)/serotonin (5-HT2) receptor antagonist, used for the treatment of schizophrenia.

Selleck's Iloperidone has been cited by 1 publication

Purity & Quality Control

Choose Selective 5-HT Receptor Inhibitors

Biological Activity

Description Iloperidone (HP873) is a dopamine (D2)/serotonin (5-HT2) receptor antagonist, used for the treatment of schizophrenia.
5-HT [1]
In vitro

Iloperidone displays high affinity (Ki < 10 nM) for norepinephrine alpha(1)-adrenoceptors, dopamine D(3) and serotonin 5-HT(2A) receptors. [1] Iloperidone displays higher affinity for the dopamine D3 receptor (Ki = 7.1 nM) than for the dopamine D4 receptor (Ki = 25 nM). Iloperidone displays high affinity for the 5-HT6 and 5-HT7 receptors (Ki = 42.7 nM and 21.6 nM, respectively), and is found to have higher affinity for the 5-HT2A (Ki = 5.6 nM) than for the 5-HT2C receptor (Ki = 42.8 nM). [2] Iloperidone significantly increases dopa accumulation, an index of dopamine turnover in response to D2 receptor blockade, at doses from 0.3 mg/kg to 10 mg/kg i.p. in the striatum and from 1 mg/kg to 10 mg/kg in the nucleus accumbens. [3]

In vivo Iloperidone exerts behavioral effects in pharmacological rats models of disrupted sensorimotor gating consistent with "atypical" antipsychotics, mediated by antagonism of dopaminergic and noradrenergic receptors. Iloperidone (1 and 3 mg/kg) prevents the PPI-disruptive effects of treatment with 1 mg/kg PCP. Iloperidone (0.3 mg/kg) prevents cirazoline-induced PPI deficits, independent of its effects on startle magnitude. [4] Iloperidone (10 mg/kg) and Melperone (10 mg/kg) produce an equivalent or a smaller increase in DA release in the nucleus accumbens (NAC) of rats, respectively, compared to the mPFC, whereas none of them increase acetylcholine (ACh) release in the NAC. [5]


Solubility (25°C)

In vitro DMSO 27 mg/mL (63.3 mM)
Ethanol 4 mg/mL (9.37 mM)
Water Insoluble
In vivo Add solvents to the product individually and in order(Data is from Selleck tests instead of citations):
2% DMSO+40% PEG 300+dd H2O
For best results, use promptly after mixing.

* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.

Chemical Information

Molecular Weight 426.48


CAS No. 133454-47-4
Storage powder
in solvent
Synonyms HP873
Smiles CC(=O)C1=CC(=C(C=C1)OCCCN2CCC(CC2)C3=NOC4=C3C=CC(=C4)F)OC

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)
Dosage mg/kg Average weight of animals g Dosing volume per animal ul Number of animals
Step 2: Enter the in vivo formulation ()
% DMSO % % Tween 80 % ddH2O

Bio Calculators

Molarity Calculator

Molarity Calculator

Calculate the mass, volume or concentration required for a solution. The Selleck molarity calculator is based on the following equation:

Mass (mg) = Concentration (mM) × Volume (mL) × Molecular Weight (g/mol)

  • Mass
    Molecular Weight

*When preparing stock solutions, please always use the batch-specific molecular weight of the product found on the via label and SDS / COA (available on product pages).

Dilution Calculator

Dilution Calculator

Calculate the dilution required to prepare a stock solution. The Selleck dilution calculator is based on the following equation:

Concentration (start) x Volume (start) = Concentration (final) x Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2 ( Input Output )

  • C1

* When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and SDS / COA (available online).

The Serial Dilution Calculator Equation

  • Serial Dilutions

  • Computed Result

  • C1=C0/X C1: LOG(C1):
    C2=C1/X C2: LOG(C2):
    C3=C2/X C3: LOG(C3):
    C4=C3/X C4: LOG(C4):
    C5=C4/X C5: LOG(C5):
    C6=C5/X C6: LOG(C6):
    C7=C6/X C7: LOG(C7):
    C8=C7/X C8: LOG(C8):
Molecular Weight Calculator

Molecular Weight Calculator

Enter the chemical formula of a compound to calculate its molar mass and elemental composition:

Total Molecular Weight: g/mol

Tip: Chemical formula is case sensitive. C10H16N2O2 c10h16n2o2

Instructions to calculate molar mass (molecular weight) of a chemical compound:

To calculate molar mass of a chemical compound, please enter its chemical formula and click 'Calculate'.

Definitions of molecular mass, molecular weight, molar mass and molar weight:

Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.

Molarity Calculator

Mass Concentration Volume Molecular Weight

Clinical Trial Information

NCT Number Recruitment interventions Conditions Sponsor/Collaborators Start Date Phases
NCT04969211 Recruiting Drug: VHX-896 and iloperidone|Drug: Iloperidone and VHX-896 Healthy Vanda Pharmaceuticals June 30 2021 Phase 1
NCT04712734 Recruiting Drug: Iloperidone Schizophrenia Vanda Pharmaceuticals January 13 2021 Phase 1
NCT01495169 Completed Drug: iloperidone (oral tablet) Safety and Tolerability of Iloperidone Vanda Pharmaceuticals October 2011 Phase 1
NCT01291511 Completed Drug: Iloperidone|Drug: Placebo Schizophrenia Vanda Pharmaceuticals February 2011 Phase 3
NCT01529294 Completed Drug: Iloperidone Hepatic Impairment Novartis Pharmaceuticals|Novartis August 2010 Phase 1

Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

Handling Instructions

Tel: +1-832-582-8158 Ext:3

If you have any other enquiries, please leave a message.

  • * Indicates a Required Field

5-HT Receptor Signaling Pathway Map

Related 5-HT Receptor Products

Tags: buy Iloperidone | Iloperidone supplier | purchase Iloperidone | Iloperidone cost | Iloperidone manufacturer | order Iloperidone | Iloperidone distributor
Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID