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Calcitonin [Tyr22] (salmon), [125I] 10 µCi

NEX423 [125I]-Calcitonin, [Tyr22] (s) is suitable for the use in radioimmunoassay as well as in the radio-receptor assay.

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We offer radioligands and radiolabeled biomolecules to use as tracers, for radioimmunoassays (RIAs), for autoradiographic visualization, or for performing saturation and competition radioligand binding 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 radiolabeled compounds is fully characterized for pharmacological action and validated in binding assays.

Radiochemicals remain the most sensitive method for probing 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 NEX423:

  1. Johansson, E. et al. Type II Turn of Receptor-bound Salmon Calcitonin Revealed by X-ray Crystallography. J. Biol. Chem. 291, 13689–13698 (2016).


Concentration <1.0 µCi/mL
Detection Method Radiometric
Fresh Lot Days Fresh upon request
Label Position Nominally Labeled
Product Brand Name NEN Radiolabeled Ligands
Radioisotope I-125
Radionuclide 125I
Receptor Type Calcitonin
Shipping Condition Ambient
Special Ordering Information This is a radioactive product - shipping address must have a license to receive radioactive materials.
Therapeutic Area Angiogenesis, Cardiovascular, Inflammation
Unit Size 10 µCi