CAS 9004-36-8 appears in our catalog under these names: Cellulose Acetate Butyrate,35–39%, Cellulose acetate butanoate, Cellulose acetate butyrate, butyryl content 50-54%, Cellulose acetate butyrate, butyryl content 35-39%, CELLULOSE ACETATE BUTYRATE, 31 WT. % &. Offered by: GLPBio, Biosynth, Thermo Scientific (Acros), Sigma-Aldrich, Chemat. Available pack sizes: 500g, 2kg, 1kg, 2.5KG, 5kg, 25kg, 10kg, 250G.