PQ 69

Cat. No. 5351

PQ 69 C20H19FN4O [910045-32-8]

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Chemical Name: 4-(Butylamino)-2-(3-fluorophenyl)-1,2-dihydro-3H-pyrazolo[4,3-c]quinolin-3-one

Biological Activity

Potent and selective A1 receptor antagonist/inverse agonist. Exhibits high binding affinity at A1 receptor (Ki values are 0.07 and 0.96 nM for rat and human receptors respectively). Reduces basal [35S]-GTPγS binding 44.6% (IC50 = 0.19 nM). Antagonizes the effects of A1 agonist R-PIA (IC50 = 18.3 nM) and exhibits competitive antagonism on CCPA-induced tracheal contractions ex vivo. Displays 217- fold selectively over hA2A receptor and >1000-fold selectivity over hA3 receptor.

Technical Data

Soluble to 100 mM in DMSO and to 10 mM in ethanol with gentle warming
>98 %
Store at +4°C

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
All Tocris products are intended for laboratory research use only.

Certificate of Analysis / Safety Data Sheet

Certificate of Analysis: View current batch
Safety Data Sheet: View Safety Data Sheet

Lu et al (2014) PQ-69, a novel and selective adenosine A1 receptor antagonist with inverse agonist activity. Purinergic Signal. 10 619. PMID: 25248972.

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Keywords: PQ 69, supplier, PQ69, Potent, selective, A1, antagonists, receptors, adenosines, inverse, agonists, Tocris Bioscience, A1 Receptor Antagonist products

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