Levan, CAS:9013-95-0

LevanLevan, also known as fructan or levan N, belongs to the class of organic compounds known as o-glycosyl compounds. These are glycoside in which a sugar group is bonded through one carbon to another group via a O-glycosidic bond. Levan is soluble (in water) and a very weakly acidic compound (based on its pKa). Levan has been found in human tongue, tooth and pancreas tissues. Within the cell, levan is primarily located in the cytoplasm.Levan is a (2,6)-linked fructan produced by Erwinia herbicola. The polysaccharide contains branches every 10-12 fructose residues linked (1,2) and is reported to have a molecular weight in excess of 1000 KDa.? Potential industrial applications of levan have been proposed as an emulsifier, formulation aid, stabilizer and thickener, surface-finishing agent, encapsulating agent, and carrier for flavor and fragrances. In addition, levan is promising in medicine as a plasma substitute, drug activity prolongator and antihyperlipidemic agent.CAS Number9013-95-0Product NameLevanIUPAC Name(2R,3S,4S,5S)-5-[[(2S,3S,4S,5R)-5-[[(2R,3S,4S,5R)-3,4-dihydroxy-2,5-bis(hydroxymethyl)oxolan-2-yl]oxymethyl]-3,4-dihydroxy-2-(hydroxymethyl)oxolan-2-yl]methoxy]-2-(hydroxymethyl)oxolane-2,3,4-triolMolecular FormulaC18H32O16Molecular Weight504.4 g/molInChIInChI=1S/C18H32O16/c19-1-7-9(23)14(28)18(5-22,33-7)31-2-8-10(24)12(26)16(3-20,32-8)6-30-15-11(25)13(27)17(29,4-21)34-15/h7-15,19-29H,1-6H2/t7-,8-,9-,10-,11+,12+,13+,14+,15+,16+,17-,18-/m1/s1InChI KeyAIHDCSAXVMAMJH-GFBKWZILSA-NSMILESC(C1C(C(C(O1)(CO)OCC2C(C(C(O2)(CO)COC3C(C(C(O3)(CO)O)O)O)O)O)O)O)OCanonical SMILESC(C1C(C(C(O1)(CO)OCC2C(C(C(O2)(CO)COC3C(C(C(O3)(CO)O)O)O)O)O)O)O)OIsomeric SMILESC([C@@H]1[C@H]([C@@H]([C@](O1)(CO)OC[C@@H]2[C@H]([C@@H]([C@](O2)(CO)CO[C@@H]3[C@H]([C@@H]([C@](O3)(CO)O)O)O)O)O)O)O)O