Name	Milrinone
Synonyms	1,6-Dihydro-2-methyl-6-oxo-(3,4'-bipyridine)-5-carbonitrile
Molecular Formula	C12H9N3O
Molecular Weight	211.22
CAS Registry Number	78415-72-2
EINECS	278-903-6

Off white or slight yellow powder

Water≤2.0%

Residue on ignition≤0.2%

Heavy metals≤20ppm

Assay≥98.5%

Milrinone is non-digitalis, non-catecholamines cardiac drug , it is representative drug of phosphodiesterase inhibitor,selectively inhibiting phosphodiesterase in myocardial cells, increasing intracellular cyclic adenosine monophosphate, alter intracellular calcium transport, thereby increasing myocardial contractility and expanding peripheral vessel .