5-25-09-00038 (Beilstein Handbook Reference) 56611-65-5 6-Phthalazinecarboxylic acid, 3,4-dihydro-1-(hydroxymethyl)-5,7-dimethyl-4-oxo-, ethyl ester 7-Ethoxycarbonyl-4-hydroxymethyl-6,8-dimethyl-1(2H)-phthalazinone BRN 0811823 EG 626 Ethyl 1,2-dihydro-4-hydroxymethyl-6,8-dimethyl-1-oxo-7-phthalazinylcarboxylat Ethyl 3,4-dihydro-1-(hydroxymethyl)-5,7-dimethyl-4-oxo-6-phthalazinecarboxylate OXAGRELATE Oxagrelate [USAN:INN] Oxagrelato [INN-Spanish] Oxagrelatum [INN-Latin] Phthalazinol Phthalazinol (phosphodiesterase inhibitor) SC 32840