Name: Phosphodiesterase; PDE3 & PDE4 Inhibitors (IC50, Ki)
Creator: AAT Bioquest
License: https://www.aatbio.com/tou.html

Phosphodiesterase; PDE3 & PDE4 Inhibitors (IC50, Ki)

Structure	Compound Name	Standard Type	Standard Values (in nM)
	Indolidan	IC50	130.0 ^[1]
	Indolidan	Ki	80.0 ^[1]
	3,3-Dimethyl-5-(4-methyl-6-oxo-4,5-dihydro-1H-pyridazin-3-yl)-1H-indol-2-one	IC50	13.0 ^[1], 240.0 ^[2]
	3-Isobutyl-1-methylxanthine	IC50	6900.0 ^[1]
	Papaverine	IC50	6600.0 ^[1]
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References

This online resource may be cited as follows

MLA	"Quest Database™ Phosphodiesterase; PDE3 & PDE4 Inhibitors (IC50, Ki)." AAT Bioquest, Inc., 6 Dec. 2025, https://www.aatbio.com/data-sets/phosphodiesterase-pde3-pde4-inhibitors-ic50-ki.
APA	AAT Bioquest, Inc. (2025, December 6). Quest Database™ Phosphodiesterase; PDE3 & PDE4 Inhibitors (IC50, Ki). AAT Bioquest. https://www.aatbio.com/data-sets/phosphodiesterase-pde3-pde4-inhibitors-ic50-ki.
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