| Name | 6-{[(1S)-1-(4-Chlorophenyl)ethyl]amino}-1-cyclopentyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one | 
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| Synonyms | 6-{[(1S)-1-(4-Chlorophenyl)ethyl]amino}-1-cyclopentyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one 4H-Pyrazolo[3,4-d]pyrimidin-4-one, 6-[[(1S)-1-(4-chlorophenyl)ethyl]amino]-1-cyclopentyl-1,5-dihydro- | 
| Description | A novel potent, selective PDE9A inhibitor with IC50 of 11 nM, >45-fold selectivity over other PDE isoforms; shows better selectivity than (R)-C33 against PDE5. | 
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| References | References 1. Huang M, et al. Mol Pharmacol. 2015 Nov;88(5):836-45. View Related Products by Target Phosphodiesterase (PDE) | 
| Density | 1.5±0.1 g/cm3 | 
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| Molecular Formula | C18H20ClN5O | 
| Molecular Weight | 357.837 | 
| Exact Mass | 357.135651 | 
| LogP | 2.70 | 
| Index of Refraction | 1.725 | 
| Storage condition | -20°C |