1-(6-ethoxy-5-(3-ethyl-6,7-dihydro-2-(2-methoxyethyl)-7-oxo-2H-pyrazolo(4,3-d)pyrimidin-5-yl)-3-pyridyl sulphonyl)-4-ethylpiperazine benzenesulphonate
1-(6-ethoxy-5-(3-ethyl-6,7-dihydro-2-(2-methoxyethyl)-7-oxo-2h-pyrazolo(4,3-d)pyrimidin-5-yl)-3-pyridyl sulphonyl)-4-ethylpiperazine benzenesulphonate