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SR141716A, [3H]

Tritiated SR141716A (rimonabant; Acomplia; Zimulti). SR141716A acts as an inverse agonist at the cannabinoid CB1 receptor.

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SR141716A acts as an antagonist at the cannabinoid CB1 receptor, and is used to treat obesity. Cannabinoid receptors are a group of GPCRs that are potential drug targets for smoking sessation and weight loss.

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 NET1158:

  1. Bisset, K.M., Dhopeshwarkar, A.S., Liao, C., Nicholson, R.A. (2011) The G protein-coupled cannabinoid-1 (CB1) receptor of mammalian brain: Inhibition by phthalate esters in vitro, Neurochemistry International, 59 (5): 706-713.
  2. Liao, C., Zheng, J., David, L. S. and Nicholson, R. A. (2004), Inhibition of Voltage-Sensitive Sodium Channels by the Cannabinoid 1 Receptor Antagonist AM 251 in Mammalian Brain. Basic & Clinical Pharmacology & Toxicology, 94: 73–78.


Detection Method Radiometric
Label Position Specifically Labeled
Molecular Weight 463.79
Product Brand Name NEN Radiochemicals
Radioisotope H-3
Radionuclide 3H
Receptor Type Cannabinoid
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, Angiogenesis, Pain, Cardiovascular, Inflammation, Metabolic Disorders, Gastrointestinal
Unit Size 250 µCi
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Radiometric Reagents Guide 2010-2011

For over 50 years PerkinElmer has been a leading supplier of radiochemicals, liquid scintillation cocktails, vials and nuclear counting detection instruments. Today is no different. We have always been committed to providing you products for all of your radiometric needs and we are still committed t ...