Ritanserin
- CAS No.
- 87051-43-2
- Chemical Name:
- Ritanserin
- Synonyms
- R 55667;Tiserton;RITANSERIN;Camibirstat;Ritanserin（R 55667）;Ritanserin, 10 mM in DMSO;RITANSERIN SEROTONIN ANTAGONIST;6-[2-[4-[Bis(4-fluorophenyl)Methylidene]piperidin-1-yl]ethyl]-7-Methyl-[1,3]thia;6-(2-(4-(Bis(4-fluorophenyl)methylene)piperidin-1-yl)-ethyl)-7-methyl-5H-thiazolo[3,2-a]pyrimi;6-[2-[4-[BIS(4-FLUOROPHENYL)-METHYLENE]-1-PIPERIDINYL]-ETHYL]-5H-THIAZOLO[3,2-A]PYRIMIDIN-5-ONE
- CBNumber:
- CB6458180
- Molecular Formula:
- C27H25F2N3OS
- Molecular Weight:
- 477.57
- MDL Number:
- MFCD00069341
- MOL File:
- 87051-43-2.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | 145.5° |
|---|---|
| Boiling point | 618.7±65.0 °C(Predicted) |
| Density | 1.30±0.1 g/cm3(Predicted) |
| storage temp. | Sealed in dry,2-8°C |
| solubility | methanol: >10 mg/mL |
| form | solid |
| pka | 7.74±0.20(Predicted) |
| color | white |
| InChI | 1S/C27H25F2N3OS/c1-18-24(26(33)32-16-17-34-27(32)30-18)12-15-31-13-10-21(11-14-31)25(19-2-6-22(28)7-3-19)20-4-8-23(29)9-5-20/h2-9,16-17H,10-15H2,1H3 |
| InChIKey | JUQLTPCYUFPYKE-UHFFFAOYSA-N |
| SMILES | CC1=C(CCN2CCC(\CC2)=C(\c3ccc(F)cc3)c4ccc(F)cc4)C(=O)N5C=CSC5=N1 |
| FDA UNII | 145TFV465S |
| UNSPSC Code | 12352200 |
| NACRES | NA.77 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P264-P271-P280-P302+P352-P305+P351+P338 | |||||||||
| target organs | Respiratory system | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Gloves | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 22-26-36 | |||||||||
| WGK Germany | 3 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Eye Irrit. 2 Skin Irrit. 2 STOT SE 3 |
|||||||||
| Toxicity | LD50 in male, female mice, rats, dogs (mg/kg): 28.2, 28.2, 20.0, 22.2, 24.1, 33.2 i.v.; 626, 993, 956, 515, ~1280, 640-1280 orally (Awouters) | |||||||||
| NFPA 704 |
|
Ritanserin price More Price(41)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | R103 | Ritanserin powder | 87051-43-2 | 25mg | $165 | 2026-04-30 | Buy |
| Sigma-Aldrich | R103 | Ritanserin powder | 87051-43-2 | 100mg | $441 | 2026-04-30 | Buy |
| Cayman Chemical | 21374 | Ritanserin ≥95% | 87051-43-2 | 5mg | $40 | 2026-04-30 | Buy |
| Cayman Chemical | 21374 | Ritanserin ≥95% | 87051-43-2 | 10mg | $68 | 2026-04-30 | Buy |
| Cayman Chemical | 21374 | Ritanserin ≥95% | 87051-43-2 | 25mg | $143 | 2026-04-30 | Buy |
Ritanserin Chemical Properties, Uses, Production
Description
Ritanserin, also known by its developmental code name R-55667, is a serotonin antagonist medication described as an anxiolytic, antidepressant, antiparkinsonian agent, and antihypertensive agent. It was never marketed for medical use due to safety problems but has been used in scientific research to study the serotonin system.
Uses
Ritanserin has been used in behavioral testing and as a serotonin 2A receptor (5-HT2A)-receptor antagonist.
Uses
Ritanserin and other 5HT2A/2C receptor antagonists have shown in clinical trial to promote slow-wave sleep in chronic primary insomnia or generalized anxiety disorder (Mayer, 2003).
Definition
ChEBI: Ritanserin is a thiazolopyrimidine that is 5H-[1,3]thiazolo[3,2-a]pyrimidin-5-one which is substituted at position 7 by a methyl group and at position 6 by a 2-{4-[bis(4-fluorophenyl)methylidene]piperidin-1-yl}ethyl group. A potent and long-acting seratonin (5-hydroxytryptamine, 5-HT) antagonist of the subtype 5-HT2 (Ki = 0.39 nM), it is used in the treatment of a variety of disorders including anxiety, depression and schizophrenia. It has little sedative action. It has a role as a dopaminergic antagonist, a serotonergic antagonist, an antipsychotic agent, an anxiolytic drug, an antidepressant and an EC 3.4.21.26 (prolyl oligopeptidase) inhibitor. It is an organofluorine compound, a member of piperidines and a thiazolopyrimidine.
brand name
Tiserton (Janssen).
Hazard
A poison.
Biological Activity
Ritanserin acts as a potent and long-acting 5-HT 2 receptor; antagonist (Ki = 0.39nM).Anxiolytic in vivo .It has relatively low affinity for the H1, D2, α1-adrenergic, and α2-adrenergic receptors (39-, 77-, 107-, and 166-fold lower relative to 5-HT2A, respectively).
Biochem/physiol Actions
Potent 5-HT2A serotonin receptor antagonist/inverse agonist that crosses the blood-brain barrier.
storage
Store at +4°C
Ritanserin Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| 3B Pharmachem (Wuhan) International Co.,Ltd. | 18930552037 | 3bsc@sina.com | China | 15813 | 69 |
| LGM Pharma | 1-(800)-881-8210 | inquiries@lgmpharma.com | United States | 2110 | 70 |
| Chemsky (shanghai) International Co.,Ltd | 021-50135380 | shchemsky@sina.com | China | 15350 | 60 |
| Sigma-Aldrich | 021-61415566 800-8193336 | orderCN@merckgroup.com | China | 51389 | 80 |
| Shanghai Lollane Biological Technology Co.,Ltd. | 021-52996696，15000506266 15000506266 | China | 4859 | 55 | |
| Taizhou GreenChem Pharmaceutical Co., Ltd. | 0514-86654616 15366892466; | greenchem@tzglmk.com | China | 498 | 56 |
| Tianjin Kailiqi Biotechnology Co., Ltd. | 15076683720 | klq@cw-bio.com | China | 9780 | 55 |
| Shanghai Chaolan Chemical Technology Center | QQ：65489617 13301690235 | Sales@ATKchemical.com | China | 9711 | 58 |
| Amadis Chemical Company Limited | 571-89925085 | sales@amadischem.com | China | 131885 | 58 |
View Latest Price from Ritanserin manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-07-27 | Ritanserin
87051-43-2
|
$30.00-77.00 | 99.77% | 10g | TargetMol Chemicals Inc. |
-
- Ritanserin
87051-43-2
- $30.00-77.00
- 99.77%
- TargetMol Chemicals Inc.
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