5-HT2 antagonist 1 is a potent 5-HT2 receptor antagonist, has weak α1 adrenoceptor blocking activity.

Compound 24, a 5-HT2 agonist-1, selectively activates 5-HT2A, 5-HT2B, and 5-HT2C receptors with IC50 values of 10 nM, 8.3 nM, and 1.6 nM, respectively. The free base form of this compound is utilized in research pertaining to depression, alcoholism, tobacco and cocaine addiction, inflammation, cluster headaches, PTSD, seizure disorders, and additional CNS disorders [1].

Compound 24 (5-HT2 agonist-1 free base) is a potent agonist for 5-HT2A, 5-HT2B, and 5-HT2C receptors, exhibiting IC50 values of 10 nM, 8.3 nM, and 1.6 nM, respectively. It is utilized in research pertaining to depression, alcoholism, tobacco and cocaine addiction, inflammation, cluster headache, PTSD, seizure disorders, and other central nervous system disorders. [1]

Ritanserin (R 55667) is a highly effective, relatively selective, long-acting antagonist of 5-HT2 receptor (IC50: 0.9 nM), less active on Histamine H1, Dopamine D2, Adrenergic α1, Adrenergic α2 receptors.

Ensaculin (Anseculin), a novel benzopyrone partially substituted with piperazine, showed memory-enhancing effects in passive and conditioned avoidance paradigms in normal and artificially amnesic rodents. It showed neuroprotective activity in a model of NMDA toxicity and neurotrophic effects in primary cultured rat brain cells.Ensaculin can be used for the treatment of dementia.

L-745870 trihydrochloride is a highly potent and selective D4 dopamine receptor antagonist.

(4E)-SUN9221 is a potent dual α1-adrenergic receptor and 5-HT2 receptor antagonist that shows antihypertensive and antiplatelet aggregation activity in hypertensive rats.

CP 96021 is a group of 5-HT1 receptors and 5-HT2 receptors antagonists that have anti-inflammatory properties and are non-non-self anti-ulcer compounds for the treatment of gastrointestinal tract and respiratory asthma.

Aplindore Fumarate (DAB-452) is a small molecule dopamine D2 receptor partial agonist.Aplindore Fumarate exhibits high affinity for dopamine D2 and D3 receptors, and low affinity for dopamine D4, 5-hydroxytryptophan (5-HT2), and α1-adrenergic receptors.Aplindore Fumarate is used in the study of Parkinson's disease and schizophrenia. Fumarate can be used to study Parkinson's and schizophrenia.

Tiospirone (BMY 13859-1 free base) is a 5-HT2 receptor antagonist and dopamine blocker that inhibits D2, 5-HT1a, 5-HT7, and sigma receptors.Tiospirone is used in the study of neurological disorders such as schizophrenia.

Eplivanserin (SR-46349) is an effective and selective antagonist of 5-HT2A receptor with a Kd of 1.14 nM and an IC50 value of 5.8 nM in rat cortical membrane.

CI 169369 is a selective 5-HT2 receptor antagonist used in the study of anxiety and depression.

IrindaloneIrindalone is a potent serotonin (5-HT2) antagonist.

Lurasidone hydrochloride (Lurasidone HCl) is a thiazole derivative and atypical antipsychotic agent that functions as a dopamine D2 receptor antagonist; serotonin 5-HT2 receptor antagonist, serotonin 5-HT7 receptor antagonist, an antagonist of the adrenergic α2A and α2C receptors, as well as a partial serotonin 5-HT1A receptor agonist. It is used in the treatment of schizophrenia and bipolar disorder.

Iloperidone (HP 873) is an atypical antipsychotic agent that is used for treatment of schizophrenia.

Risperidone (R 64 766) is a selective blocker of dopamine D2 receptors and serotonin 5-HT2 receptors that act as an atypical antipsychotic agent.

Risperidone E-oxime is an impurity of Risperidone. Risperidone is a serotonin blocker of 5-HT2 receptor, P-Glycoprotein inhibitor and potent dopamine D2 receptor antagonist(Kis of 4.8, 5.9 nM for 5-HT2A and dopamine D2 receptor, respectively ).

MK 212 hydrochloride is a 5-HT2C receptor agonist

Ketanserinol is the metabolite of ketanserin. Ketanserin is a hypotensive drug with 5-HT2 receptor antagonism, used to reverse pulmonary hypertension caused by protamine.

Niaprazine is a histamine H1-receptor antagonist with marked sedative properties. Niaprazine has antihistamine and antiserotonin activities and can be used for sleep disorder research[1][2]. Niaprazine exhibits a low affinity for the vesicular monoamine transporter and for D2, α2, β, H1 and mAch receptors. Niaprazine, particularly the (+)stereoisomer, has a higher affinity for α1 (Ki = 77 nM) and 5-HT2 (Ki = 25 nM) binding sites, but is poorly recognized by 5-HT1A and 5-HT1B binding sites[2]. Niaprazine (60 mg/kg; i.p.; once) treatment increases rat brain 5-hydroxyindole acetic acid (5-HIAA) concentrations 30 min after treatment, and reduced them at 3-8 hr after treatment. Niaprazine also produces a short-lasting depletion of rat brain noradrenaline (NA) and dopamine (DA)[3]. Animal Model: Male Sprague-Dawley rats (150-200 g)[3] [1]. D Scherman, et al. Molecular pharmacology of niaprazine. Prog Neuropsychopharmacol Biol Psychiatry. 1988;12(6):989-1001. [2]. P G Rossi, et al. Niaprazine in the treatment of autistic disorder. J Child Neurol. 1999 Aug;14(8):547-50. [3]. P E Keane, et al. The effect of niaprazine on the turnover of 5-hydroxytryptamine in the rat brain. Neuropharmacology. 1982 Feb;21(2):163-9.

Ocaperidona (Ocaperidone (Ocaperidona)), a very high affinity dopamine D2 antagonist.

AL 34662 is a selective and potent 5-HT2A receptor agonist with IC50s of 0.77 nM and 1.5 nM for rat and human 5-HT2 receptors, respectively.AL 34662 is also a low affinity α-1D adrenergic agonist, with an EC50 of 0.4 μM.AL 34662 can be used to lower intraocular pressure.

5-HT2 receptors agonist

5-HT2/5-HT7 receptor antagonist

Iloperidone hydrochloride is a D(2)/5-HT(2) receptor antagonist. It is also an atypical antipsychotic for the treatment of schizophrenia symptoms.

Esmirtazapine HCl is the salt form of Esmirtazapine, a potent antagonist of 5-hydroxytryptamine type 2 (5-HT2), 5-HT3, and histamine 1 (H1) receptors, and a moderate antagonist of peripheral alpha 1 adrenergic and muscarinic receptors.

MDL-28133A is a 5-HT2 receptor antagonist.

Aptazapine (CGS 7525A) is a tetracyclic antidepressant (TECA) that is a potent α2-adrenergic receptor antagonist and has also been shown to act as a 5-HT2 receptor antagonist and an H1 receptor reverse agonist, both for serotonin reuptake or norepinephrin

Pirenperone is a putative 5-HT2 receptor antagonist with the central antiserotonergic and antidopaminergic action.

Dotarizine is a 5-HT2 receptor antagonist; active metabolite, FI 6020, detected by gas chromatography.

Loxapine succinate (Loxapac), a D2DR and D4DR inhibitor, is utilized in schizophrenia.

L-745870 hydrochloride has excellent brain penetration. L-745870 hydrochloride is a high-affinity, selective and orally active human dopamine D4 receptor antagonist with a Ki of 0.43 nM, and considerably weaker D2 receptor affinity with a Ki of 960 nM and D3 receptor affinity with a Ki of 2300 nM. 

Lurasidone-d8 HCl is a deuterated compound of Lurasidone HCl. Lurasidone HCl has a CAS number of 367514-88-3. Lurasidone hydrochloride is a thiazole derivative and atypical antipsychotic agent that functions as a dopamine D2 receptor antagonist; serotonin 5-HT2 receptor antagonist, serotonin 5-HT7 receptor antagonist, an antagonist of the adrenergic α2A and α2C receptors, as well as a partial serotonin 5-HT1A receptor agonist. It is used in the treatment of schizophrenia and bipolar disorder.

Isopteropodine (Uncarine E) is an isoyohimbine-type octindole alkaloid isolated from Hamelia patens micropropagated and has antimicrobial activity and stimulates the immune system. Isopteropodine has antimicrobial activity and stimulates the immune system.Isopteropodine is a positive modulator of muscarinic M1 and 5-HT2 receptors and a PXR activator that induces contraction of the rat myometrium.

Olanzapine (LY170053) is an atypical antipsychotic that is used currently in the treatment of schizophrenia and bipolar illness.

AL-38022A is a novel synthetic serotonergic (5-HT) ligand that exhibited high affinity for each of the 5-HT2 receptor subtypes (Ki100-fold less) affinity for other 5-HT receptors. In addition, AL-38022A displayed a very low affinity for a broad array of other receptors, neurotransmitter transport sites, ion channels, and second messenger elements, making it a relatively selective agent. AL-38022A potently stimulated functional responses via native and cloned rat (EC50 range: 1.9-22.5 nM) and human (EC50 range: 0.5-2.2 nM) 5-HT2 receptor subtypes including [Ca2+]i mobilization and tissue contractions with apparently similar potencies and intrinsic activities and was a full agonist at all 5-HT2 receptor subtypes.

Gevotroline, a chemical in palm wine that can be used to treat psychosis, is a 5-HT2 receptor antagonist that can be used to study behavioral disorders.

Cinitapride Tartrate is an agonist of the 5-HT1 and 5-HT4 receptors and is also an antagonist of the 5-HT2 receptors.

5-HT2 receptor antagonist

Cinanserin hydrochloride (SQ 10643) is a high affinity antagonist of the 5-HT2 receptor (Ki: 41 nM) and a 3C-like protease inhibitor of severe acute respiratory syndrome coronavirus.

LY266097 hydrochloride (LY 266097 hydrochloride) is an antagonist of 5-HT2 with pKis of 7.7, 9.8, and 7.6 for human 5-HT2A, 5-HT2B, and 5-HT2C and can be used in studies about depression.

FG-5893 is a 5-HT1A agonist and 5-HT2 antagonist with potential anxiolytic activity.

Risperidone hydrochloride (R 64 766 hydrochloride) is a blocker of the 5-HT2 receptor, an inhibitor of P-glycoprotein and an antagonist of the dopamine D2 receptor, which acts on 5-HT2A (Ki: 4.8 nM) and dopamine D2 (Ki: 5.9 nM) receptors.

Adenosine 5'-diphosphate disodium salt has been shown to inhibit the binding of serotonin (5-hydroxytryptamine) to 5-HT2 receptors, which are present in heart tissue.

SUN-C5174 is a sleective 5-HT2 antagonist (pA2=8.98+/-0.06). SUN C5174 showed a marked inhibitory effect on the platelet aggregation induced by serotonin in combination with collagen and adenosine diphosphate (ADP) in canine or human platelet-rich plasma

Octoclothepin maleate salt is a D2 dopamine receptor antagonist and 5-HT2 serotonin receptor antagonist.

Volinanserin (MDL100907) (MDL 100907) is a potent and selective antagonist of the serotonin receptor 5-HT2 (Ki: 0.36 nM) and shows 300-fold selectivity for 5-HT2 receptor over 5-HT1c, alpha-1 adrenergic and sigma receptors.

Mirtazapine (6-Azamianserin) is a tetracyclic antidepressant with a somewhat unique mechanism of action. Mirtazapine therapy can be associated with transient asymptomatic elevations in serum aminotransferase levels and has been linked to rare instances of clinically apparent acute liver injury.

Naftidrofuryl oxalate (Nafronyl oxalate) is a drug used in the management of peripheral and cerebral vascular disorders. It is claimed to enhance cellular oxidative capacity and to be a spasmolytic. It may also be an antagonist at 5HT-2 serotonin receptors.

NGB 2904 is a potent and selective antagonist of dopamine D3 receptor (Ki values are 1.4, 217, 223, 642, > 5000, > 10000 and > 10000 nM for D3, D2, 5-HT2, α1, D4, D1 and D5 receptors respectively). NGB2904 potently antagonizes mitogenesis stimulated by quinpirole (IC50 = 6.8 nM).