With 2,4-pentanedione, it condenses to give the 3,5-dimethylpyrazole.
Nastali produkt še naprej reagira s hidrazinom, tako da nastane hidrazon::2 (CH3)2CO + N2H4 → 2 H2O + [(CH3)2C=N]2:[(CH3)2C=N]2 + N2H4 → 2 (CH3)2C=NNH2Propanon azin je vmesni produkt v sintezi Atofina-PCUK.