MedKoo Cat#: 540258 | Name: Ketanserin tartrate
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Description:

WARNING: This product is for research use only, not for human or veterinary use.

Ketanserin tartrate is a 5-HT2A receptor and TRPV1 receptor antagonist and potential α1-adrenergic receptor antagonist used to treat hypertension. It increases capillary density in myocardial tissue, decreases blood pressure, and improves left ventricular remodeling and overall cardiac function.

Chemical Structure

Ketanserin tartrate
Ketanserin tartrate
CAS#83846-83-7 (tartrate)

Theoretical Analysis

MedKoo Cat#: 540258

Name: Ketanserin tartrate

CAS#: 83846-83-7 (tartrate)

Chemical Formula: C26H28FN3O9

Exact Mass: 0.0000

Molecular Weight: 545.52

Elemental Analysis: C, 57.25; H, 5.17; F, 3.48; N, 7.70; O, 26.40

Price and Availability

Size Price Availability Quantity
50mg USD 250.00 2 Weeks
100mg USD 450.00 2 Weeks
250mg USD 850.00 2 Weeks
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Synonym
Ketanserin tartrate; KJK-945; KJK945; KJK 945; R 49945; R49945; R-49945
IUPAC/Chemical Name
3-(2-(4-(4-fluorobenzoyl)piperidin-1-yl)ethyl)quinazoline-2,4(1H,3H)-dione (2R,3R)-2,3-dihydroxysuccinate
InChi Key
KMTLTEVOQLMYRS-LREBCSMRSA-N
InChi Code
InChI=1S/C22H22FN3O3.C4H6O6/c23-17-7-5-15(6-8-17)20(27)16-9-11-25(12-10-16)13-14-26-21(28)18-3-1-2-4-19(18)24-22(26)29;5-1(3(7)8)2(6)4(9)10/h1-8,16H,9-14H2,(H,24,29);1-2,5-6H,(H,7,8)(H,9,10)/t;1-,2-/m.1/s1
SMILES Code
O=C(N1CCN2CCC(C(C3=CC=C(F)C=C3)=O)CC2)NC4=C(C=CC=C4)C1=O.O[C@H]([C@H](C(O)=O)O)C(O)=O
Appearance
Solid powder
Purity
>98% (or refer to the Certificate of Analysis)
Shipping Condition
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.
Storage Condition
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).
Solubility
Soluble in DMSO
Shelf Life
>2 years if stored properly
Drug Formulation
This drug may be formulated in DMSO
Stock Solution Storage
0 - 4 C for short term (days to weeks), or -20 C for long term (months).
HS Tariff Code
2934.99.9001
More Info
Product Data
Biological target:
Ketanserin (R41468) tartrate is a selective 5-HT2 receptor antagonist.
In vitro activity:
Ketanserin blocked hERG current (I(hERG)) in a concentration-dependent manner (IC50=0.11 microM). These results suggest that ketanserin binds to and blocks the open hERG channels in the pore helix and the S6 domain; channel inactivation is also involved in the blockade of hERG channels. Reference: Br J Pharmacol. 2008 Oct;155(3):365-73. https://pubmed.ncbi.nlm.nih.gov/18574455/
In vivo activity:
Ketanserin but not GR127935, inhibited Ca(2+)-induced contraction of depolarised strips of guinea-pig ileum longitudinal muscle/myenteric plexus, however, in rabbit saphenous vein and guinea-pig jugular vein, 5-HT receptor mediated responses were insensitive to nifedipine (Ca2+ channel blocker), eliminating the possibility that the inhibitory effects of ketanserin and GR127935 were due to the blockade of voltage-operated Ca2+ channels. Thus, antagonism by ketanserin and GR127935 confirms the presence of 5-HT1D receptors in rabbit saphenous vein and guinea-pig jugular vein. Reference: Eur J Pharmacol. 1995 Sep 5;283(1-3):199-206. https://pubmed.ncbi.nlm.nih.gov/7498311/
Solvent mg/mL mM
Solubility
DMSO 87.5 160.40
DMSO:PBS (pH 7.2) (1:9) 0.1 0.18
Water 5.7 10.49
Note: There can be variations in solubility for the same chemical from different vendors or different batches from the same vendor. The following factors can affect the solubility of the same chemical: solvent used for crystallization, residual solvent content, polymorphism, salt versus free form, degree of hydration, solvent temperature. Please use the solubility data as a reference only. Warming and sonication will facilitate dissolving. Still have questions? Please contact our Technical Support scientists.

Preparing Stock Solutions

The following data is based on the product molecular weight 545.52 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL
Formulation protocol:
1. Tang Q, Li ZQ, Li W, Guo J, Sun HY, Zhang XH, Lau CP, Tse HF, Zhang S, Li GR. The 5-HT2 antagonist ketanserin is an open channel blocker of human cardiac ether-à-go-go-related gene (hERG) potassium channels. Br J Pharmacol. 2008 Oct;155(3):365-73. doi: 10.1038/bjp.2008.261. Epub 2008 Jun 23. PMID: 18574455; PMCID: PMC2567890. 2. Zgombick JM, Schechter LE, Kucharewicz SA, Weinshank RL, Branchek TA. Ketanserin and ritanserin discriminate between recombinant human 5-HT1D alpha and 5-HT1D beta receptor subtypes. Eur J Pharmacol. 1995 Sep 15;291(1):9-15. doi: 10.1016/0922-4106(95)90183-3. PMID: 8549648. 3. Razzaque Z, Longmore J, Hill RG. Differences in the effects of ketanserin and GR127935 on 5-HT-receptor mediated responses in rabbit saphenous vein and guinea-pig jugular vein. Eur J Pharmacol. 1995 Sep 5;283(1-3):199-206. doi: 10.1016/0014-2999(95)00349-p. PMID: 7498311. 4. Van Nueten JM, Janssen PA, Van Beek J, Xhonneux R, Verbeuren TJ, Vanhoutte PM. Vascular effects of ketanserin (R 41 468), a novel antagonist of 5-HT2 serotonergic receptors. J Pharmacol Exp Ther. 1981 Jul;218(1):217-30. PMID: 6113280.
In vitro protocol:
1. Tang Q, Li ZQ, Li W, Guo J, Sun HY, Zhang XH, Lau CP, Tse HF, Zhang S, Li GR. The 5-HT2 antagonist ketanserin is an open channel blocker of human cardiac ether-à-go-go-related gene (hERG) potassium channels. Br J Pharmacol. 2008 Oct;155(3):365-73. doi: 10.1038/bjp.2008.261. Epub 2008 Jun 23. PMID: 18574455; PMCID: PMC2567890. 2. Zgombick JM, Schechter LE, Kucharewicz SA, Weinshank RL, Branchek TA. Ketanserin and ritanserin discriminate between recombinant human 5-HT1D alpha and 5-HT1D beta receptor subtypes. Eur J Pharmacol. 1995 Sep 15;291(1):9-15. doi: 10.1016/0922-4106(95)90183-3. PMID: 8549648.
In vivo protocol:
1. Razzaque Z, Longmore J, Hill RG. Differences in the effects of ketanserin and GR127935 on 5-HT-receptor mediated responses in rabbit saphenous vein and guinea-pig jugular vein. Eur J Pharmacol. 1995 Sep 5;283(1-3):199-206. doi: 10.1016/0014-2999(95)00349-p. PMID: 7498311. 2. Van Nueten JM, Janssen PA, Van Beek J, Xhonneux R, Verbeuren TJ, Vanhoutte PM. Vascular effects of ketanserin (R 41 468), a novel antagonist of 5-HT2 serotonergic receptors. J Pharmacol Exp Ther. 1981 Jul;218(1):217-30. PMID: 6113280.
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