D-Psicose (D-allulose, D-ribo-2-hexulose, C6H12O6) is an ultralow-energy monosaccharide sugar. It is a C-3 epimer of D-fructose, and is present in small quantities in agricultural products and commercially-prepared carbohydrate complexes. It is known as a "rare sugar" because it is rarely found in nature, and even when found, only in small amounts. D-Psicose yields only 0.3% the metabolic energy of the equivalent amount of sucrose. Its name deriv...
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Structure (SMILES):
- C(C(C(C(C(=O)CO)O)O)O)O ,
- O=C([C@H](O)[C@H](O)[C@H](O)CO)CO