A cell-permeable pyridopyrazolopyrimidine based compound that acts as a potent and reversible inhibitor of pantothenate kinase (IC₅₀ = 70, 92 and 25 nM for PanK1β, PanK2 and PanK3, respectively; radiochemical assay, 2.5 mM [ATP]). Binds to ATP-PanK complex (apparent binding constant ~300 nM for ATP-PanK3) and exhibits mixed-type inhibition with respect to ATP and pantothenate. Shown to dose-dependently decrease [³H]pantothenate incorporation into coenzyme A (apparent IC₅₀ = 900 nM in C3A cells) with negligible off-target toxicity (IC₅₀ >56 µM in Hep-G2 cells).

Please note that the molecular weight for this compound is batch-specific due to variable water content. Please refer to the vial label or the certificate of analysis for the batch-specific molecular weight. The molecular weight provided represents the baseline molecular weight without water.

Cell permeable: yes

Primary Target
pantothenate kinase

Reversible: yes

Target IC₅₀: 70, 92 and 25 nM for PanK1&beta

Packaged under inert gas

Toxicity: Standard Handling (A)

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.

Sharma, L.K., et al. 2015. J. Med. Chem.58, 1563.

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany