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SCH-23390 (hydrochloride)

SCH-23390 hydrochloride (R- (+) -SCH-23390 hydrochloride) is a potent and selective dopamine D1-like receptor antagonist with Kis of 0.2 nM and 0.3 nM for the D1 and D5 receptor, respectively. SCH-23390 hydrochloride is a potent and high efficacy human 5-HT2C receptor agonist with a Ki of 9.3 nM. SCH-23390 hydrochloride also binds with high affinity to the 5-HT2 and 5-HT1C receptors. SCH-23390 hydrochloride inhibits G protein-coupled inwardly rectifying potassium (GIRK) channels with an IC50 of 268 nM[1][2][3].

Product Specifications

CAS Number

125941-87-9

Product Name Alternative

R- (+) -SCH-23390 hydrochloride

UNSPSC

12352005

Target

5-HT Receptor; Dopamine Receptor; Potassium Channel

Type

Reference compound

Related Pathways

GPCR/G Protein; Membrane Transporter/Ion Channel; Neuronal Signaling

Applications

Neuroscience-Neurodegeneration

Field of Research

Neurological Disease

Assay Protocol

https://www.medchemexpress.com/SCH_23390_hydrochloride.html

Concentration

10mM

Purity

99.83

Solubility

DMSO : ≥ 100 mg/mL|H2O : ≥ 100 mg/mL

Smiles

OC1=C(Cl)C=C2CCN(C)C[C@H](C3=CC=CC=C3)C2=C1.[H]Cl

Molecular Formula

C17H19Cl2NO

Molecular Weight

324.24

References & Citations

[1]Bourne JA, et al . SCH 23390: the first selective dopamine D1-like receptor antagonist. CNS Drug Rev. 2001 Winter;7 (4) :399-414.|[2]Millan MJ, et al. The "selective" dopamine D1 receptor antagonist, SCH23390, is a potent and high efficacy agonist at cloned human serotonin2C receptors. Psychopharmacology (Berl) . 2001 Jun;156 (1) :58-62.|[3]Kuzhikandathil EV, et al. Classic D1 dopamine receptor antagonist R- (+) -7-chloro-8-hydroxy-3-methyl-1-phenyl-2,3,4,5-tetrahydro-1H-3-benzazepine hydrochloride (SCH23390) directly inhibits G protein-coupledinwardly rectifying potassium channels. Mol Pharmacol. 2002 Jul;62 (1) :119-26.|[4]Wang YH, et al. Isosibiricin inhibits microglial activation by targeting the dopamine D1/D2 receptor-dependent NLRP3/caspase-1 inflammasome pathway. Acta Pharmacol Sin. 2020 Feb;41 (2) :173-180.|[5]Crockett SL, et al. Role of dopamine and selective dopamine receptor agonists on mouse ductus arteriosus tone and responsiveness. Pediatr Res. 2019 Dec 9.

Shipping Conditions

Room Temperature

Storage Conditions

4°C (Powder, sealed storage, away from moisture)

Scientific Category

Reference compound1

Clinical Information

No Development Reported

Isoform

5-HT1 Receptor;5-HT2 Receptor; D1 Receptor; D5 Receptor; α-1 microglobulin

Citation 01

Acta Pharmacol Sin. 2020 Feb;41 (2) :173-180.|Acta Pharmacol Sin. 2024 Aug;45 (8) :1582-1590.|Adv Sci (Weinh) . 2025 Sep;12 (33) :e02276.|Aquaculture. 2025 Apr 15.|Behav Pharmacol. 2024 Jun 1;35 (4) :193-200.|Biochem Biophys Res Commun. 2022 Jan 15:588:83-89.|Biochem Biophys Res Commun. 2022 Nov 12:629:183-188.|Biochem Pharmacol. 2025 Nov 29:244:117576.|bioRxiv. 2024 Dec 23:2024.12.22.629999.|Brain Res Bull. 2021 Oct:175:136-149.|Cell Rep. 2024 Sep 10;43 (9) :114717.|Eur J Pharmacol. 2024 Jul 30:176866.|Food Biosci. 2025 Oct.|Insect Biochem Mol Biol. 2025 May:180:104312.|Int Immunopharmacol. 2020 Nov;88:106963.|Int J Biol Macromol. 2023 Aug 30:247:125703.|J Hazard Mater. 2025 Aug 5:496:139466.|J Neurosci. 2024 Jul 17:e0740242024.|J Neurosci. 2025 Sep 3;45 (36) :e0382252025.|J Psychiatry Neurosci. 2024 Feb 1;49 (1) :E23-E34.|Med Sci Monit. 2021 Oct 18;27:e933278.|Microbiome. 2020 Aug 20;8 (1) :120.|Nat Commun. 2024 Jun 10;15 (1) :4947.|Nat Commun. 2024 May 1;15 (1) :3685.|Nat Commun. 2020 Feb 18;11 (1) :941. |Neurochem Int. 2023 Feb:163:105479.|Neuropsychopharmacology. 2024 May 11.|Neurosci Lett. 2021 Aug 24:760:136102.|Psychopharmacology (Berl) . 2022 Mar;239 (3) :951-964.|Viruses. 2021 Aug 3;13 (8) :1533.|Mol Brain. 2025 Jul 16;18 (1) :63.

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