lactulose molecule, non-absorbable sugar, molecular structure, 3d model van der waals

lactulose nonabsorbable sugar lactose milk molecule molecular structure chemical formula isolated model c12h22o11 atom chemistry compound bowel disaccharide laxative atomic constipation science carbon medicine oxygen gut colon pharmaceutical skeletal osmotic prebiotic disease treatment hydrogen intestine syrup galactofructose bond scientific therapy composition drawing nondigestible sirup research