3d image of xylose skeletal formula

xylose wood sugar d-xylose wood monosaccharide aldopentose aldehyde functional group hemicellulose biomass reducing acyclic hemiacetal tautomer isomer stereoisomer furanose pyranose hemicellulose xylan oxidoreductase pathway malabsorption fasting animal welfare veterinary animal medicine substance matter material compound component agent stuff reagent precursor synthesis reaction production building block molecule molecular formula skeletal structural structure 3d biochemistry biomolecule