Tags: Chemical Compound, Chemical Substance.
PPADS (pyridoxalphosphate-6-azophenyl-2’4′-disulfonic acid) is a selective purinergic P2X antagonist. It is able to block contractions of rabbit vas deferens induced by ATP or αβmethylene-ATP. It appears to be relatively selection for P2X receptors having no appreciable activity at α1 adrenergic muscarinic M2 and M3 histamine H1 and adenosine A1 receptors.