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AB143019

Pimobendan (Vetmedin), Ca2+ channel sensitizer

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MW 334.4 Da, Purity >99%. Ca2+ channel sensitizer. Selective PDE3 inhibitor. Inhibits platelet aggregation. Shows antithrombotic, antihypertensive, potent inotropic and vasodilatory effects *in vivo.* Orally active.

View Alternative Names

5''-cyclic phosphodiesterase A, 5''-cyclic phosphodiesterase B, AI847709, Adipocyte cAMP phosphodiesterase cGMP inhibited, CGI PDE, CGI-PDE A, CGI-PDE B, CGIP1, CGIPDE1, CGMP inhibited cAMP phophodiesterase, Cyclic GMP-inhibited phosphodiesterase A, Cyclic GMP-inhibited phosphodiesterase B, Cyclic nucleotide phosphodiesterase, HcGIP1, HcGIP1, rat, homolog of, Human cGMP inhibited cAMP phosphodiesterase mRNA, PDE3A_HUMAN, PDE3B_HUMAN, Phosphodiesterase 3A, Phosphodiesterase 3A cGMP inhibited, Phosphodiesterase 3B, Phosphodiesterase 3B cGMP inhibited, cAMP Phosphodiesterase, adipocyte, cGMP-inhibited, cAMP phosphodiesterase myocardial cGMP inhibited, cGMP inhibited 3 5 cyclic phosphodiesterase B, cGMP inhibited 3' 5' cyclic phosphodiesterase A, cGMP-inhibited 3''

1 Images
Chemical Structure - Pimobendan (Vetmedin), Ca2+ channel sensitizer (AB143019)
  • Chemical Structure

Lab

Chemical Structure - Pimobendan (Vetmedin), Ca2+ channel sensitizer (AB143019)

2D chemical structure image of ab143019, Pimobendan (Vetmedin), Ca2+ channel sensitizer

Key facts

CAS number

74150-27-9

Purity

>99%

Form

Solid

form

Molecular weight

334.4 Da

Molecular formula

C<sub>1</sub><sub>9</sub>H<sub>1</sub><sub>8</sub>N<sub>4</sub>O<sub>2</sub>

PubChem

4823

Nature

Synthetic

Solubility

Soluble in ethanol to 10 mM

Soluble in DMSO to 100 mM

Biochemical name

Pimobendan

Biological description

Ca2+ channel sensitizer. Selective PDE3 inhibitor. Inhibits platelet aggregation. Shows antithrombotic, antihypertensive, potent inotropic and vasodilatory effects *in vivo.* Orally active.

Canonical smiles

CC1CC(=O)NN=C1C2=CC3=C(C=C2)N=C(N3)C4=CC=C(C=C4)OC

InChi

InChI=1S/C19H18N4O2/c1-11-9-17(24)22-23-18(11)13-5-8-15-16(10-13)21-19(20-15)12-3-6-14(25-2)7-4-12/h3-8,10-11H,9H2,1-2H3,(H,20,21)(H,22,24)

InChiKey

GLBJJMFZWDBELO-UHFFFAOYSA-N

IUPAC Name

3-[2-(4-methoxyphenyl)-3H-benzimidazol-5-yl]-4-methyl-4,5-dihydro-1H-pyridazin-6-one

Properties and storage information

Shipped at conditions
Ambient - Can Ship with Ice
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
+4°C
Storage information
Store under desiccating conditions|The product can be stored for up to 12 months
Handling instructions

Need more advice on solubility, usage and handling? Please visit our our product support page for more details.

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Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.

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Toxic, refer to SDS for further information.

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

PDE3A and PDE3B are phosphodiesterases that break down cyclic adenosine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP) in cells important molecules in cell signaling. PDE3A and PDE3B also known as cGMP-inhibited phosphodiesterases facilitate the regulation of intracellular levels of these cyclic nucleotides. PDE3A has a molecular weight of around 125 kDa while PDE3B is approximately 135 kDa. Expression of PDE3A occurs in cardiac and smooth muscle tissues while PDE3B is found in adipose tissue liver and the heart.
Biological function summary

These enzymes modulate the balance between cAMP and cGMP concentrations which in turn controls various physiological processes. PDE3A and PDE3B do not function as part of large multi-protein complexes but influence fundamental cellular responses like muscle contraction lipolysis and platelet aggregation. The regulation of cAMP and cGMP is important for their role in the cardiovascular and metabolic systems.

Pathways

These enzymes play a significant role in the cAMP signaling and cGMP signaling pathways. PDE3A is closely associated with cardiac function interacting with proteins like troponin and phospholamban to mediate cardiac contractility. On the other hand PDE3B influences insulin signaling pathways connecting with proteins involved in glucose and lipid metabolism. These connections highlight PDE3B's role in metabolic regulation and energy homeostasis.

PDE3A and PDE3B are linked with cardiovascular diseases and metabolic syndrome. PDE3A's role in cardiac contractility makes it a critical target in heart failure interacting with proteins such as PKA and PLN (Phospholamban). PDE3B's impact on lipid and glucose metabolism ties it to type 2 diabetes where PDE3B modulation affects insulin resistance and lipid disorders. Studies focus on these enzymes to develop therapeutic approaches for treating these conditions.

Product protocols

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