1,2:3,4-Bis-O-(1-methylethylidene)-alpha-D-glucopyranose butanoate 127702-00-5 4-19-00-06129 (Beilstein Handbook Reference) BRN 0038025 O-Butanoyl-6 di-O-isopropylidene-1,2:3,4 alpha-D-galactopyrannose [French] alpha-D-Glucopyranose, 1,2:3,4-bis-O-(1-methylethylidene)-, butanoate