xanthine
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682151 Sigma-AldrichXanthine Oxidase, Buttermilk
Native xanthine oxidase from buttermilk. Complex metalloprotein that catalyzes oxidative hydroxylation of a variety of aromatic heterocycles and simple aldehydes. Catalyzes the oxidation of xanthine to uric acid.
6820 MilliporeXanthine - CAS 69-89-6 - Calbiochem
4010CBC MilliporeHypoxanthine - CAS 68-94-0 - Calbiochem
Xanthine oxidase substrate.
410957 Sigma-Aldrich3-Isobutyl-1-methylxanthine - CAS 28822-58-4 - Calbiochem
3-Isobutyl-1-methylxanthine, CAS 28822-58-4, is a cell-permeable, non-specific inhibitor of cAMP and cGMP phosphodiesterases (IC50 = 2-50 µM).
454202 Sigma-Aldrich8-Methoxymethyl-3-isobutyl-1-methylxanthine - CAS 78033-08-6 - Calbiochem
A cell-permeable selective inhibitor of Ca2+-calmodulin-dependent phosphodiesterase (PDE I; IC₅₀ = 4 µM).
119148 Sigma-AldrichAdenosine A1 Receptor Antagonist II, PSB-36 - CAS 524944-72-7 - Calbiochem
A highly potent and selective antagonist of adenosine A1 receptor (Ki = 124 and 700 pM for rat and human A1R, respectively).
253500 Sigma-AldrichDenbufylline
A cell-permeable xanthine derivative that acts as a selective inhibitor of phosphodiesterase IV (PDE IV; Ki = ~ 1 µM).
