| A8106 | Altanserin hydrochloride hydrate ≥98% (HPLC), solid | Altanserin hydrochloride hydrate is a specific 5HT2/serotonergic antagonist.
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| B9929 | BRL 15572 | Potent and selective 5-HT1D serotonin receptor antagonist.
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| B2060 | Bromperidol solid | Butyrophenone antipsychotic; D2 dopamine and 5-HT2A serotonin antagonist.
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| C0832 | Clozapine N-oxide | 5-HT2 serotonin receptor antagonist; major metabolite of clopazine that can be monitored by HPLC.
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| C4542 | Cyclobenzaprine hydrochloride | Skeletal muscle relaxant; reduces muscle spasm by depression of brainstem neurons; 5-HT2 serotonin receptor antagonist.
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| C6022 | Cyproheptadine hydrochloride sesquihydrate ≥98% (TLC), solid | 5-HT2/5-HT1C serotonin receptor antagonist; H1 histamine receptor antagonist; antipruritic.
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| G5918 | GR 113808 ≥98% (HPLC), solid | GR 113808 is a 5-HT4 serotonin receptor antagonist.
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| G6043 | GR 125487 sulfamate salt >98% (HPLC), solid | 5-HT4 serotonin receptor antagonist.
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| G5793 | GR 127935 hydrochloride hydrate >98% (HPLC), solid | Potent, selective and orally active 5-HT1B/1D serotonin receptor antagonist.
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| G0419 | GR 55562 dihydrobromide >97% (HPLC), powder | 5-HT1B/5-HT1D serotonin receptor antagonist
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| G3796 | Granisetron hydrochloride ≥98% (HPLC), solid | Granisetron hydrochloride is a serotonin 5-HT3 receptor antagonist and antiemetic.
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| S006 | Ketanserin (+)-tartrate salt >97%, solid | Selective 5-HT2 serotonin receptor antagonist.
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| L110 | LY-278,584 maleate salt solid | Potent 5-HT3 serotonin receptor antagonist.
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| L2536 | LY-310,762 hydrochloride white powder | Potent, selective 5-HT1D serotonin receptor antagonist.
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| L2411 | LY-367,265 | Antidepressant, inhibits the serotonin transporter; 5-HT2A serotonin receptor antagonist.
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| M3668 | Metergoline | Antagonist at 5-HT1, 5-HT2, and 5-HT7 serotonin receptors; analgesic; antipyretic.
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| M149 | Methiothepin mesylate salt ≥98% (HPLC), solid | Methiothepin mesylate salt is a 5-HT1, 5-HT6, 5-HT7 serotonin receptor antagonist, which blocks serotonin autoreceptors.
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| M137 | Methysergide maleate salt solid | Nonselective 5-HT1, 5-HT2, and 5-HT7 serotonin receptor antagonist; antimigraine.
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| M2525 | Mianserin hydrochloride | Antidepressant; antagonist/inverse agonist at 5-HT2 serotonin receptors; also blocks the H1 histamine receptor and the α2 adrenoceptor.
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| M2946 | Mosapride citrate salt dihydrate | 5-HT4 receptor agonist and 5-HT3 receptor antagonist
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| D5676 | N-Desmethylclozapine | Major metabolite of clozapine; potent 5-HT2 serotonin receptor antagonist and a ligand for the cloned 5-HT6 and 5-HT7 serotonin receptors. Also an allosteric potentiator of M1 muscarinic receptors.
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| N3529 | NAN-190 hydrobromide | Potent 5-HT1A serotonin receptor antagonist active in the nM range.
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| O3639 | Ondansetron hydrochloride dihydrate ≥98% (HPLC), solid | 5-HT3 serotonin receptor antagonist
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| P3246 | Pipamperone dihydrochloride ~99% (HPLC), powder | D2 dopamine receptor antagonist; 5-HT2 serotonin receptor antagonist; antipsychotic.
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| P126 | Pirenperone >97%, solid | 5-HT2 serotonin receptor antagonist.
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| R3030 | Risperidone ≥98% (HPLC), powder | Risperidone is an antipsychotic; serotonin-dopamine antagonist.
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| R103 | Ritanserin solid | Potent 5-HT2A serotonin receptor antagonist/inverse agonist that crosses the blood-brain barrier.
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| R140 | Ro 04-6790 dihydrochloride solid | Selective 5-HT6 serotonin receptor antagonist.
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| R8782 | Ro4368554 ≥98% (HPLC)  | Ro4368554 is a 5-HT6 receptor antagonist. RO4368554 acts selectively at 5-HT6 receptors where it binds with a greater than 100-fold selectivity over other monoamine receptor subtypes (-log M pKi = 9.4 at 5-HT6 and 7.1 at 5-HT2A).
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| C238 | S(−)-Cyanopindolol hemifumarate salt solid, ≥98% (HPLC) | 5-HT1A/1B serotonin receptor antagonist; β3-adrenoceptor antagonist.
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| U108 | S(−)-UH-301 hydrochloride solid | Potent, selective 5-HT1A serotonin receptor antagonist; D2/D3 dopamine receptor agonist.
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| S0693 | SB 204741 >98% (HPLC) | 5-HT2B serotonin receptor antagonist.
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| S2318 | SB 228357 ≥99% (HPLC), solid | Selective 5-HT2B/2C serotonin receptor antagonist
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| S0443 | SB-203186 hydrochloride 99% (HPLC) | SB-203186 is a 5-HT4 serotonin receptor antagonist.
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| S3313 | SB-204070 hydrochloride solid, ≥97% (HPLC) | Selective 5-HT4 serotonin receptor antagonist.
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| S180 | SB-206553 hydrochloride hydrate ≥98% (HPLC), solid | Potent 5-HT2B/5-HT2C serotonin receptor antagonist.
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| S1068 | SB-215505 solid, >98% (HPLC) | Selective 5-HT2B serotonin receptor antagonist; 100-fold higher affinity at 2B versus 2C.
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| S2193 | SB-221284 >98% (HPLC), solid | 5-HT2B/2C serotonin receptor antagonist.
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| S201 | SB-224289 hydrochloride solid | Selective 5-HT1B serotonin receptor antagonist.
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| S1194 | SB-258585 dihydrochloride ~99% (HPLC), solid | 5-HT6 serotonin receptor antagonist.
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| S7389 | SB-269970 hydrochloride solid, ≥98% (HPLC) | Selective 5-HT7 serotonin receptor antagonist.
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| S5326 | SB-271046A ≥98% (HPLC) | SB-271046 was the first potent and selective 5-HT6 antagonist. It was found the learning procedure or the administration of the selective 5-HT6 receptor antagonist SB-271046 induced an increase in pCREB1 levels while CREB2 levels were significantly reduced. It caused a significant increase in cochlear DA release what is contradictory with the excitatory nature of this type of receptor. SB-271046 also reversed the scopolamine- or MK-801-induced learning impairments.
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| S8061 | SB 242084 dihydrochloride hydrate ≥98% (HPLC), solid | Selective 5-HT2c serotonin receptor antagonist; crosses the blood-brain barrier.
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| S174 | SDZ-205,557 hydrochloride solid | Potent, selective 5-HT4 serotonin receptor antagonist.
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| S8072 | Sertindole ≥97.5% (HPLC) | Sertindole is a 5-HT2 serotonin and D2 dopamine receptor antagonist and antipsychotic.
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| S103 | Spiroxatrine powder | Partial 5-HT1A serotonin receptor agonist and α adrenoceptor antagonist.
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| T104 | Tropisetron monohydrochloride solid, ≥98% (HPLC) | 3-Tropanylindole-3-carboxylate hydrochloride is a selective 5-HT3 serotonin receptor antagonist.
Tropisetron a selective serotonin 5-HT3 receptor antagonist is used mainly as an antiemetic to treat nausea and vomiting following chemotherapy . In the treatment of fibromyalgia syndrome (FMS) tropisetron reduced not only pain perception but also had a favourable effect on cardiac dysfunction during treatment.
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| W0270 | WAY 161503 hydrochloride ≥98% (HPLC) | The 5-HT2C receptors have been implicated in conditions including obesity, anxiety, depression, OCD, schizophrenia, migraine, nociception and erectile dysfunction.
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| W108 | WAY-100635 maleate salt solid | WAY-100635 maleate salt is a highly selective 5-HT1A serotonin receptor antagonist.
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| Z2777 | Ziprasidone hydrochloride monohydrate ≥98% (HPLC), solid | Ziprasidone is an atypical antipsychotic; FDA approved for the treatment of schizophrenia.
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| M226 | p-MPPF dihydrochloride solid | Selective 5-HT1A serotonin receptor antagonist. More potent than p-MPPI.
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| M204 | p-MPPI monohydrochloride solid, ≥98% (HPLC) | Selective 5-HT1A serotonin receptor antagonist that crosses the blood-brain barrier.
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