1. Materials information
Names
| Name | pimobendan |
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| Synonym | More Synonyms |
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Pimobendan Biological Activity
| Description | Pimobendan is a selective inhibitor of PDE3 with IC50 of 0.32 μM.Target: PDE3Pimobendan exhibits selective inhibition of PDE III isolated from guinea pig cardiac muscle with IC50 of 0.32 uM compared to the inhibition of PDE I and PDE II (IC50s >30 μM). In human atrial cells, 100 μM pimobendan significantly increases the L-type calcium current (ICa(L)) (evoked by depolarization to +10 mV from a holding potential of -40 mV) by 250.4% with the half-maximal stimulation (EC50) of 1.13 μM. In rabbit atrial cells, Pimobendan increases ICa(L) at +10 mV by 67.4.%, which is significantly lower than that obtained in human atrial cells Pimobendan shows a beneficial effect on survival in the murine model of EMC virus-induced myocarditis. Administration of Pimobendan significantly increases the final survival rate from 33.6% (control) to 53.3% (0.1 mg/kg) or 66.7% (1 mg/kg). Pimobendan (1 mg/kg) also significantly reduces myocardial cellular infiltration, the level of intracardiac tumor necrosis factor (TNF)-α and interleukin (IL)-1β compared with the control group, which shows no effect on myocardial necrosis, heart weight and body weight. Pimobendan suppresses expression of the intracardiac iNOS gene , causing reduction of intracardiac NO production. |
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| Related Catalog | Signaling Pathways >> Metabolic Enzyme/Protease >> Phosphodiesterase (PDE) Research Areas >> Cardiovascular Disease |
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| References | [1]. Kajimoto K, et al. Contribution of phosphodiesterase isozymes to the regulation of the L-type calcium current in human cardiac myocytes. Br J Pharmacol. 1997 Aug;121(8):1549-56. [2]. Iwasaki A, et al. Pimobendan inhibits the production of proinflammatory cytokines and gene expression of inducible nitric oxide synthase in a murine model of viral myocarditis. J Am Coll Cardiol. 1999 Apr;33(5):1400-7. |
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Chemical & Physical Properties
| Density | 1.4±0.1 g/cm3 |
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| Melting Point | 249 °C(dec.) |
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| Molecular Formula | C19H18N4O2 |
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| Molecular Weight | 334.372 |
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| Exact Mass | 334.142975 |
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| PSA | 79.37000 |
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| LogP | 1.81 |
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| Index of Refraction | 1.693 |
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2. Packaging of materials
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For liquids: normal 25kgs/drum, 180-300kgs/bucket, or IBC, determined by the nature of the product.
Or smaller package 1kg/bottle, 10kgs/bottle as request.
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