BiochemProbe — Life Science Research Reagents

THK5351 free base · Synonyms: THK-5351 · THK 5351

THK5351 can be radiolabeled and used as a radiotracer for in vivo imaging of tau pathology in the brain.

For research use only. Not for human or veterinary use.

Target Tau Protein
Research area Neurological Disease
Purity >98% Stock Inquire

THK5351 structure

CAS No.: 1707147-26-9

Download structure (.mol)

Pack sizes & pricing

Size Price SKU Stock
50 mg USD 620.00 BP-00013-50mg In stock Get quote
100 mg USD 980.00 BP-00013-100mg In stock Get quote
250 mg USD 1,980.00 BP-00013-250mg In stock Get quote
500 mg USD 3,150.00 BP-00013-500mg In stock Get quote

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Description

THK5351 can be radiolabeled and used as a radiotracer for in vivo imaging of tau pathology in the brain.

Biological activity

In Vitro Aggregated tau protein is a major neuropathological substrate central to the pathophysiology of neurodegenerative diseases such as Alzheimer's disease (AD). 18F-THK5351 binds to Alzheimer disease hippocampal homogenates with high affinity (Kd=2.9 nM; maximum number of binding sites=368.3 pmol/g tissue). It has fast dissociation from white-matter tissue. The THK5351 binding amount correlates with the amount of tau deposits in tissue. In Vivo THK5351 exhibits favorable pharmacokinetics and no defluorination in mice. 18F-THK5351 enters the brain immediately after intravenous injection and shows a fast washout from the brain. At 0.1 and 1 mg/kg, no animals died and no treatment-related changes in any animal are noted in clinical observations, body weight measurement, and pathologic examination[1]. Autoradiography in the brain sections of patients with PSP demonstrates [3H]THK-5351 binding to tau deposits with a high selectivity. Although patients with PSP exhibits no remarkable [18F]THK-5351 retention in the temporal cortex, significantly higher tracer retention is observed in the globus pallidus and midbrain.

Identifiers

SMILES
O(C[C@@H](CF)O)C1=CC2=C(N=C(C=C2)C=3C=CC(NC)=NC3)C=C1
InChIKey
DLVXFZWSPCOWSN-CQSZACIVSA-N

Specifications

MW (average)
327.3528
Formula
C18H18FN3O2
CAS No.
1707147-26-9
Physical state
Solid
Color
Light yellow to yellow
Shipping
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.
Storage
Powder -20°C, 3 years , 4°C, 2 years; In solvent -20℃ 1 month;

Solubility

Soluble in DMSO : 50 mg/mL

References

[1]. Harada R, et al. 18F-THK5351: A Novel PET Radiotracer for Imaging Neurofibrillary Pathology in Alzheimer Disease. J Nucl Med. 2016 Feb;57(2):208-14.
[2]. Ishiki A, et al. Tau imaging with [18 F]THK-5351 in progressive supranuclear palsy. Eur J Neurol. 2017 Jan;24(1):130-136.

Same research area

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