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Ketanserin Hydrochloride (R41 468), [Ethylene-3H]-, 25µCi (925kBq)

Ketanserin hydrochloride (Sufrexal; R41468), tritiated on the ethylene group. Ketanserin is a high-affinity non-selective antagonist of 5-HT2 receptors.

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Part Number Unit Size List Price Your Price Quantity
NET791025UC 25 µCi 614.00 USD
NET791250UC 250 µCi 2041.00 USD
NET791001MC 1 mCi 5500.00 USD
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Ketanserin is used as a radioligand for serotonin 5-HT2 serotonin receptors. Ketanserin is used clnical as an antihypertensive agent.

We offer both agonist and antagonist radioligands for autoradiographic visualization or performing saturation and competition assays to determine receptor expression levels (Bmax), dissociation constants (Kd), association and dissociation rates (kon and koff), and inhibitor constants (Ki) for a variety of receptors. We develop our radioligands to the highest specific activity possible and provide high purity resulting in low non-specific binding products. Each of our ultra-pure radioligands is fully characterized for pharmacological action and validated in receptor binding assays.

Radiolabeled ligands remain the most sensitive method for probing receptor binding biology; yielding unprecedented sensitivity gives results that technicians and scientists can trust. For over 50 years, PerkinElmer has been a leading supplier of New England Nuclear (NEN) radiochemicals, liquid scintillation cocktails, vials and nuclear counting detection instruments.

References for NET791:

  1. Toshiyuki Ueki, Kazushige Mizoguchi, Takuji Yamaguchi, Akinori Nishi, Kyoji Sekiguchi, Yasushi Ikarashi, Yoshio Kase, Yokukansan, a traditional Japanese medicine, decreases head-twitch behaviors and serotonin 2A receptors in the prefrontal cortex of isolation-stressed mice, In Journal of Ethnopharmacology, Volume 166, 2015, Pages 23-30.
  2. Lydia Schiller, Markus Donix, Monika Jähkel, Jochen Oehler, Serotonin 1A and 2A receptor densities, neurochemical and behavioural characteristics in two closely related mice strains after long-term isolation, In Progress in Neuro-Psychopharmacology and Biological Psychiatry, Volume 30, Issue 3, 2006, Pages 492-503.
  3. Daniel Hoyer, Günter Engel, Hans O. Kalkman, Molecular pharmacology of 5-HT1 and 5-HT2 recognition sites in rat and pig brain membranes: Radioligand binding studies with [3H]5-HT, [3H]8-OH-DPAT, (−)[125I]iodocyanopindolol, [3H]mesulergine and [3H]Ketanserin, In European Journal of Pharmacology, Volume 118, Issues 1–2, 1985, Pages 13-23.


Detection Method Radiometric
Label Position Specifically Labeled
Molecular Weight 431.9
Product Brand Name NEN Radiochemicals
Radioisotope H-3
Radionuclide 3H
Receptor Type 5-Hydroxytryptamine
Shipping Condition Dry Ice
Special Ordering Information This is a radioactive product - shipping address must have a license to receive radioactive materials.
Therapeutic Area CNS & Neurologic, Cardiovascular, Inflammation, Metabolic Disorders, Gastrointestinal
Unit Size 25 µCi