2,4-DIAMINO-6-PIPERIDINOPYRIMIDINE;2,6-DIAMINO-4-PIPERIDINOPYRIMIDINE;2,4-DiaMino-6-piperidinopyriMidine (DesoxyMinoxidil);6-(1-Piperidinyl)-2,4-pyriMidinediaMine;DesoxyMinoxidil;Minoxidil EP Impurity E;2,4-Diamino-6-piperdinopyrimidine;Minoxidil Impurity 5(Minoxidil EP Impurity E)