Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleIdentification of an Impurity in the Synthesis of Pharmacologically Active Pyrazolotriazolopyrimidines by a Combined Spectrometric Approach.AuthorsRaffaelli, Andrea; Pucci, Sergio; Uccello-Barretta, Gloria; Russo, Filippo; Guccione, SalvatorePublicationRapid Communications in Mass Spectrometry: RCM, 1996, Vol 10, Issue 15, p1939ISSN0951-4198Publication typeArticleDOI10.1002/(SICI)1097-0231(199612)10:15<1939::AID-RCM771>3.0.CO;2-4