1. Neuronal Signaling
  2. Amyloid-β

MK-3328 

Cat. No.: HY-100275
Handling Instructions

MK-3328 is a β-Amyloid PET ligand, which exhibits high binding potency with an IC50 of 10.5 nM.

For research use only. We do not sell to patients.

MK-3328 Chemical Structure

MK-3328 Chemical Structure

CAS No. : 1201323-97-8

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  • Biological Activity

  • Protocol

  • Technical Information

  • Purity & Documentation

  • References

Description

MK-3328 is a β-Amyloid PET ligand, which exhibits high binding potency with an IC50 of 10.5 nM.

IC50 & Target

IC50: 10.5 nM (β-Amyloid)[1]

In Vitro

MK-3328 exhibits amyloid binding potency balanced with low levels of nonspecific binding[1].

In Vivo

In vivo, [18F]MK-3328 demonstrates favorable kinetics, exhibiting high brain uptake and good washout in normal rhesus monkey positron emission tomography (PET) imaging studies[1].

References
Kinase Assay
[1]

[3H]-DMAB is synthesized at a specific activity of ~80 Ci/mmol. The final concentration of radioligand for tissue homogenate binding assay is 1.5nM. Brain homogenates are diluted with PBS to 0.4 mg/mL from original 10 mg/mL volume and 200 μL is used in assay for a final concentration of 50 μg/assay tube. Unlabeled test compounds are dissolved in DMSO at 1 mM. Dilution of test compound (e.g., MK-3328) to various concentrations is made with PBS containing 2% DMSO. Total binding is defined in the absence of competing compound, and non-displaceable binding is determined in the presence of 1 μM unlabeled self block. Compound dilutions (10×) are added into the assay tube (25 μL each/per tube, separately) containing 200 μL brain homogenate dilution, and the tubes are pre-incubated at room temperature for 10 minutes. Then radioligand dilutions (10×) are added into the assay tube (25 μL each/per tube, separately) to a final volume of 250 μL per tube. Incubation is carried out at room temperature (25°C) for 90 minutes, and then the assay samples are filtered onto GF/C filters using Skatron 12 well harvester, washing on setting 5-5-5 (~ 3×2 mL) ice cold buffer (PBS, pH 7.4). GF/C filter papers for the Skatron harvester are pre-soaked in 0.1% BSA for 1 hour at room temperature before use. Filters are punched into scintillation vials and counted in 2 mL Ultima Gold on Perkin Elmer Tri-Carb 2900TR for 1 minute. The data analysis is done with Prism software. All assays are done in triplicate, and in the laboratory designated for studies using human tissues[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

References
Molecular Weight

268.25

Formula

C₁₄H₉FN₄O

CAS No.

1201323-97-8

SMILES

CN1C=CC2=CC(C3=NC4=CC=C(F)N=C4O3)=CN=C21

Storage

Please store the product under the recommended conditions in the Certificate of Analysis.

Shipping

Room temperature in continental US; may vary elsewhere

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Product Name:
MK-3328
Cat. No.:
HY-100275
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MK-3328

Cat. No.: HY-100275