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KF21213

Catalog No. T13745Cas No. 155271-17-3

KF21213 shows a high affinity for the adenosine A2A receptors (Ki=3.0 nM). KF21213 is a highly selective ligand for mapping CNS adenosine A2A receptors.

KF21213

KF21213

Catalog No. T13745Cas No. 155271-17-3
KF21213 shows a high affinity for the adenosine A2A receptors (Ki=3.0 nM). KF21213 is a highly selective ligand for mapping CNS adenosine A2A receptors.
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25 mg$1,8208-10 weeks
50 mg$2,3808-10 weeks
100 mg$3,1008-10 weeks
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Product Introduction

Bioactivity
Description
KF21213 shows a high affinity for the adenosine A2A receptors (Ki=3.0 nM). KF21213 is a highly selective ligand for mapping CNS adenosine A2A receptors.
Targets&IC50
A2A receptor:ki: 3.0 nM
In vitro
KF21213 shows a high affinity for the adenosine A2A receptors in vitro (Ki=3.0 nM) and a very low affinity for the A1 receptors (Ki>10,000 nM).KF21213 as a PET ligand for mapping adenosine A2A receptors in the central nervous system (CNS).
In vivo
Striatal uptake of [11C]KF21213 shows a gradual increase for the initial 15 minutes before declining, while its absorption by the cortex and cerebellum decreases swiftly post-injection, aligning with blood levels. As a result, the striatum to cortex and striatum to cerebellum uptake ratios escalate to 8.6±1.6 and 10.5±2.1 (N=4), respectively, within 60 minutes. Initially retained for 5 minutes, [11C]KF21213's striatal activity then diminishes over time, unlike [11C]KF18446, which drops quickly. Similarly, cerebellar activity for both ligands decreases rapidly. The striatum-to-cerebellum uptake ratio for [11C]KF21213 progressively increases to 2.4±0.5 (N=3) over 50-60 minutes, while for [11C]KF18446, it peaks within the first 10 minutes before stabilizing at 1.4±0.3 (N=3) between 25-35 minutes.
Chemical Properties
Molecular Weight354.4
FormulaC19H22N4O3
Cas No.155271-17-3
Storage & Solubility Information
StoragePowder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice.

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