CAS 57819-56-4 appears in our catalog under these names: Pinitol diacetonide, 95%, (3aR,4S,5S,5aR,8aR,8bR)-5-Methoxy-2,2,7,7-tetramethylhexahydrobenzo(1,2-d:3,4-d')bis((1,3)dioxole)-4-ol, 98+%, Pinitol diacetonide. Offered by: Combi-blocks, AmBeed, Biosynth. Available pack sizes: 5g, 1g, 250mg, 1000mg, 500mg, 2000mg, 5000mg.