Xanthoanthrafil is a potent phosphodiesterase-5 (PDE5) inhibitor, with an IC50 of 3.95 ng/mL. Xanthoanthrafil can be used for the research of erectile dysfunction.

Pyrazole N-Desmethyl sildenafil (Compound 10) is an analog of Sildenafil.

PDEδ/NAMPT IN-1 (Compound 17d) is a dual inhibitor targeting phosphodiesterase 6 (PDE6) (KD=0.410 nM) and nicotinamide phosphoribosyl transferase (NAMPT) (IC50=2.21 nM). PDEδ/NAMPT IN-1 blocks KRAS-related signal transduction and interferes with the synthesis of nicotinamide adenine dinucleotide (NAD+), inducing apoptosis in KRAS mutant pancreatic cancer cells. PDEδ/NAMPT IN-1 is promising for research of KRAS mutant pancreatic cancer.

P7-2302 inhibits PDE7 and PDE4B with IC50 of 0.18 nM and 77.3 nM. P7-2302 inhibits the efflux of P-gp and BCRP (breast cancer resistance protein), exhibits low uptake in rats brain. P7-2302 can be used as a PET tracer when labeled with 18F.

MP 518 is a PDE inhibitor with antihypertensive properties. MP 518 can inhibit cAMP degradation, causing an increase in ICa, and can also antagonize β-adrenergic stimulation, exerting vasodilation.

Desmethyl thiosildenafil is a phosphodiesterase type 5 (PDE5) inhibitor[1].

Desethyl Sildenafil (Sildenafil impurity C) is the impurity of Sildenafil (IC50 of 134.29 μM).

Cipamfylline is a PDE4 inhibitor that can cause PDE4A4 to accumulate in specific areas of the cell through interaction with the ubiquitin scaffolding protein p62. Cipamfylline can be used in the research of atopic dermatitis.

BMS-341400 mesylate (Compound 6) is an orally active and a selective phosphodiesterase 5 (PDE5) inhibitor, with IC50 of 0.3 nM. BMS-341400 mesylate can be used for research of erectile dysfunction.

BC8-15 is a PDE inhibitor with IC50 values of 0.28, 0.22, and 6.46 µM for inhibiting PDE8A, PDE4A, and PDE7A, respectively. BC8-15 can enhance steroidogenesis in mouse Leydig cells.

ASP9831 is an orally active PDE4 inhibitor. ASP9831 inhibits LSP-induced TNF-α production and has anti-inflammatory activity. ASP9831 can be used in fatty liver disease research.

4-Nitrophenyl phenylphosphonate is a substrate for 5'-nucleotide phosphodiesterase.

(±)-BAY-7081 is a racemate of BAY-7081.

(+)-BAY-7081 is an optical isomer of BAY-7081.

Oglemilast(GRC3886) is a potent PDE4 inhibitor, under clinical studies in the treatment of allergen-induced asthma.

Dovramilast (CC-11050) is a potent and orally active phosphodiesterase 4 (PDE4) inhibitor, CC-11050 is a promising candidate for host directed therapy of patients with pulmonary TB.

Lodenafil (Hydroxyhomosildenafil) is a potent phosphodiesterase type 5 (PDE5) inhibitor for the treatment of erectile dysfunction (ED).

THPP-1, a SGC chemical probe, is a potent and orally bioavailable phosphodiesterase 10A (PDE10A) inhibitor, with Ki values of 1 nM and 1.3 nM for human and rat PDE10A, respectively. THPP-1 has excellent pharmacokinetic properties in preclinical species.

MR-L2 is a reversible and noncompetitive allosteric activator of long-isoform phosphodiesterase-4 (PDE4), activates representative PDE4 long-isoform variants (PDE4A4, PDE4B1, PDE4C3, PDE4D5). MR-L2 suppresses PGE2-induced MDCK cell cyst formation with an EC50 of 1.2 μM.

CRD733 (ASP4901) is a potent, selective cGMP-specific PDE9 (phosphodiesterase 9) inhibitor.

MBCQ is a potent and selective the type V phosphodiesterase (PDE V; PDE5) inhibitor with an IC50 of 19 nM. MBCQ has IC50s >100 µM for PDE1, PDE2, PDE3, and PDE4, respectively. MBCQ dilates coronary arteries via potent and specific inhibition of cGMP-PDE.

Deltarasin is a novel and small molecule inhibitor which can inhibit the KRAS-PDEδ interaction(Kd= 41 nM. binding to PDEδ) and impairs oncogenic KRAS signalling.

(E/Z)HA-155 is a potent and selective autotaxin (ATX) inhibitor with an IC50 of 5.7 nM.

Yonkenafil is a potent, selective PDE5 inhibitor with IC50 of 2.0 nM.

TPN171 (TPN-171) is a highly potent, selective phosphodiesterase type 5 (PDE5) inhibitor with IC50 of 0.62 nM, 32-fold selectivity over PDE6.

TOP-N53 is a dual-acting nitric oxide (NO) donor and selective PDE5 inhibitor, potently inhibits PDE5 with IC50 of 1.6 nM.

A potent and selective PDE10A inhibitor with IC50 of 0.37 nM.

ME3183 is a potent, selective phosphodiesterase 4 (PDE4) inhibitor with IC50 of 2.33, 1.28 and 1.63 nM for PDE4B1, PDE4A1A and PDE4D2 respectively.

MCI-030 (ADT 061) is a potent, selective PDE10 inhibitor, inhibits recombinant PDE10 using cGMP as a substrate with IC50 of 0.3 uM.

Gemlapodect (NOE-105) is a potent, selective PDE10A inhibitor with a potential therapeutic effect for the treatment of COFD.