Felcisetrag (TD-8954) is an orally active, potent and selective 5-HT4 receptor agonist with gastrointestinal prokinetic properties. Felcisetrag has high affinity (pKi =9.4) for human 5-HT4(c) receptors.

SB 221284 is a selective 5-HT2C/2B receptor antagonist with pKi values are 6.4, 7.9 and 8.6 for 5-HT2A, 5-HT2B and 5-HT2C receptors, respectively. SB 221284 can be used for the research of neurological disease.

DR4485 (hydrochloride) is an orally active and selective 5-HT7 antagonist (pKi=8.14).

Renzapride (BRL 24924), a substituted benzamide, is a full 5-HT4 receptor agonist with a Ki value of 115 nM. Renzapride (BRL 24924) is also a 5HT2b and 5HT3 receptor antagonist. Renzapride could be used for constipation predominant irritable bowel syndrome (C-IBS) study.

NAS181 is a potent and selective antagonist of rat 5-HT1B receptor, with a Ki of 47 nM. NAS181 shows 13-fold selectivity for r5-HT1B over bovine 5-HT1B receptor (Ki=630 nM). NAS181 increases the 5-HT turnover and the synaptic concentration of 5-HT by inhibiting terminal r5-HT1B autoreceptors.

WAY-100135 dihydrochloride is a selective antagonist at presynaptic and postsynaptic 5-HT1A receptor, with an IC50 of 34 nM at the rat hippocampal 5-HT1A receptor. WAY-100135 dihydrochloride has potential antipsychotic properties.

Org37684 is a highly potent 5-HT2C receptor agonist (pEC50=8.17). Org37684 exhibits a rank order of potency of 5-HT2C>5-HT2B>5-HT2A. Its selectivity for the 5-HT2C receptor is approximately 2.5 times over the 5-HT2B (pEC50=7.96) and ten times for the 5-HT2A (pEC50=7.11) receptor.

4F 4PP (oxalate) is a selective 5-HT2A antagonist with almost as high affinity (Ki= 5.3 nM) as ketanserin but with a much lower affinity for 5-HT2C sites (Ki= 620 nM).

Relenopride (YKP10811) hydrochloride is a specific and selective 5-HT4 receptor agonist (Ki=4.96 nM). Relenopride hydrochloride has 120-fold and 6-fold lower affinity, respectively, for 5-HT2A (Ki=600 nM) and 5-HT2B receptors (Ki=31 nM) than for 5-HT4. Relenopride hydrochloride increases gastrointestinal (GI) motility.

Alniditan (Alnitidan) dihydrochloride is a potent 5-HT1B and 5-HT1D receptors agonist, with IC50s of 1.7 nM and 1.3 nM in HEK 293 cells, and Kds of 0.9 nM and 1.2 nM, respectively. Alniditan dihydrochloride has migraine-preventive effects.

Eplivanserin (SR-46349) hemifumarate is a potent, selective and orally active 5-HT2A receptor antagonist, with an IC50 of 5.8 nM in rat cortical membrane, and a Kd of 1.14 nM. Eplivanserin hemifumarate displays >20-fold selectivity more selective for 5-HT2A than 5-HT2B and 5-HT2C.

NPS ALX Compound 4a dihydrochloride is a potent and selective 5-hydroxytryptamine6 (5-HT6) receptor antagonist, with an IC50 of 7.2 nM and a Ki of 0.2 nM.

SGS518 oxalate is a selective 5-HT6R antagonist. SGS518 oxalate can be used for the research of cognitive impairments such as amnesia, anxiety and depression, and it is effective in protecting mouse retina at high doses[1]

SB-203186 hydrochloride is a potent and competitive 5-HT4 antagonist. SB-203186 hydrochloride antagonizes the 5-HT4 receptor-mediated relaxations of the carbachol-contracted rat isolated oesophagus against 5-HT with pKB values of 10.9 (rat oesophagus), 9.

CART(62-76)(human,rat) TFA is a neuropeptide (62-76 residues of the CART peptide) with neurotransmitter-like effects. CART(62-76)(human,rat) TFA can modulate the activity of striatal noradrenergic and corticostriatal and hypothalamic serotoninergic (5-HT) system in the rat brain.

CART(62-76)(human,rat) is a neuropeptide (62-76 residues of the CART peptide) with neurotransmitter-like effects. CART(62-76)(human,rat) can modulate the activity of striatal noradrenergic and corticostriatal and hypothalamic serotoninergic (5-HT) system in the rat brain.

Strictosidinic acid, an orally active glycoside indole monoterpene alkaloid isolated from Psychotria myriantha leaves, inhibits precursor enzymes of 5-HT biosynthesis and reduces the 5-HT levels. Strictosidinic acid has peripheral analgesic and antipyretic activities in mice.

2'-O-Methylisoliquiritigenin, isolated from the Arachis species, up-regulates 5-HT, NE, DA and GABA pathways, but does not put a very significant effect on ne NE pathway.

Urapidil D6 is a deuterium labeled Urapidil. Urapidil is an α1-adrenoreceptor antagonist and a 5-HT1A receptor agonist.

Org 12962 hydrochloride is a potent, selective and efficacious 5-HT2C?receptor agonist and exhibits pEC50?values of 7.01, 6.38 and 6.28 for 5-HT2C, 5-HT2A?and 5-HT2A, respectively. Org 12962 hydrochloride is effective in panic-like anxiety animal model.

Isamoltane hemifumarate is a selective antagonist of 5-HT1B receptor, with an IC50 of 39 nM for inhibits the binding of [125I]ICYP to 5-HT1B recognition sites in rat brain membranes. Isamoltane hemifumarate is also a β-adrenoceptor ligand, with an IC50 of 8.4 nM. Isamoltane hemifumarate shows anxiolytic activity.

EMD 56551 is a potent and selective 5-HT1A receptor agonist. EMD 56551 exerts anxiolytic activity.

SB-215505 is a potent and subtype-selective 5-HT2B receptor antagonist with pKi values of 8.3, 6.77, 7.66 for 5-HT2B, 5-HT2A, 5-HT2C, respectively. SB-215505 increases wakefulness and motor activity in rats.

8-Hydroxy-DPAT hydrobromide (8-OH-DPAT hydrobromide) is a potent and selective 5-HT1A agonist with a pIC50 of 8.19. 8-Hydroxy-DPAT hydrobromide has selectivity of almost 1000 fold for a subtype of the 5-HT1 binding site.

ML 10302 hydrochloride is a potent and selective 5-HT4 receptor agonist, with an EC50 of 4 nM。ML 10302 hydrochloride displays more than 680-fold selectivity over 5-HT3 receptor in binding assay.

Ro 04-6790 is a potent, competitive and selective 5-HT6 receptor antagonist with pKi values of 7.26, 7.35 for rat and human 5-HT6 receptors, respectively. Ro 04-6790 has no affinity at other receptors.

Ziprasidone amino acid (Ziprasidone Impurity C) is an impurity of Ziprasidone. Ziprasidone is a combined 5-HT (serotonin) and dopamine receptor antagonist. Ziprasidone exhibits potent effects of antipsychotic activity .

Iprindole, a tricyclic indole antidepressant, is a weak inhibitor of the uptake of noradrenaline and 5-HT.

Fabesetron (FK1052) is an orally active 5-HT3 receptor antagonist with 5-HT4 receptor antagonistic activity. Fabesetron (FK1052) can be used in the study for both acute and delayed emesis induced by cancer chemotherapy.

SB-200646A is the first selective 5-HT2B/2C over 5-HT2A receptor antagonist with pKi values of 7.5, 6.9 and 5.2 for 5-HT2B, 5-HT2C and 5-HT2A, respectively. SB-200646A is orally active and has electrophysiological and anxiolytic properties in vivo.