1.0 2010-04-08 22:14:17 UTC 2025-11-19 02:19:06 UTC FDB019339 6'-Galactosyllactose Formed by the transferase action on lactose of the b-galactosidases from Saccharomyces fragilis, Aspergillus flavus and Penicillium chrysogenum. Isolated from human milk 6'-Galactosyllactose C18H32O16 504.4371 504.169034976 6-(hydroxymethyl)-5-{[3,4,5-trihydroxy-6-({[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}methyl)oxan-2-yl]oxy}oxane-2,3,4-triol 6-(hydroxymethyl)-5-{[3,4,5-trihydroxy-6-({[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}methyl)oxan-2-yl]oxy}oxane-2,3,4-triol 32581-31-0 OCC1OC(OCC2OC(OC3C(O)C(O)C(O)OC3CO)C(O)C(O)C2O)C(O)C(O)C1O InChI=1S/C18H32O16/c19-1-4-7(21)9(23)13(27)17(32-4)30-3-6-8(22)10(24)14(28)18(33-6)34-15-5(2-20)31-16(29)12(26)11(15)25/h4-29H,1-3H2 OWEGMIWEEQEYGQ-UHFFFAOYSA-N belongs to the class of organic compounds known as oligosaccharides. These are carbohydrates made up of 3 to 10 monosaccharide units linked to each other through glycosidic bonds. Oligosaccharides Organic compounds Organic oxygen compounds Organooxygen compounds Carbohydrates and carbohydrate conjugates Aliphatic heteromonocyclic compounds Acetals Hemiacetals Hydrocarbon derivatives O-glycosyl compounds Oxacyclic compounds Oxanes Polyols Primary alcohols Secondary alcohols Acetal Alcohol Aliphatic heteromonocyclic compound Glycosyl compound Hemiacetal Hydrocarbon derivative O-glycosyl compound Oligosaccharide Organoheterocyclic compound Oxacycle Oxane Polyol Primary alcohol Secondary alcohol a small molecule melting_point Mp 187° (sinters at 167°) logp -6.5 ChemAxon pka_strongest_acidic 11.22 ChemAxon pka_strongest_basic -3.6 ChemAxon iupac 6-(hydroxymethyl)-5-{[3,4,5-trihydroxy-6-({[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}methyl)oxan-2-yl]oxy}oxane-2,3,4-triol ChemAxon average_mass 504.4371 ChemAxon mono_mass 504.169034976 ChemAxon smiles OCC1OC(OCC2OC(OC3C(O)C(O)C(O)OC3CO)C(O)C(O)C2O)C(O)C(O)C1O ChemAxon formula C18H32O16 ChemAxon inchi InChI=1S/C18H32O16/c19-1-4-7(21)9(23)13(27)17(32-4)30-3-6-8(22)10(24)14(28)18(33-6)34-15-5(2-20)31-16(29)12(26)11(15)25/h4-29H,1-3H2 ChemAxon inchikey OWEGMIWEEQEYGQ-UHFFFAOYSA-N ChemAxon polar_surface_area 268.68 ChemAxon refractivity 100.75 ChemAxon polarizability 46.53 ChemAxon rotatable_bond_count 7 ChemAxon acceptor_count 16 ChemAxon donor_count 11 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon Specdb::CMs 17531 Specdb::CMs 41649 Specdb::CMs 169216 Specdb::CMs 169218 Specdb::CMs 169220 Specdb::CMs 169222 Specdb::CMs 169224 Specdb::CMs 169226 Specdb::CMs 169229 Specdb::CMs 169231 Specdb::CMs 280652 Specdb::NmrOneD 160190 Specdb::NmrOneD 160191 Specdb::NmrOneD 160192 Specdb::NmrOneD 160193 Specdb::NmrOneD 160194 Specdb::NmrOneD 160195 Specdb::NmrOneD 160196 Specdb::NmrOneD 160197 Specdb::NmrOneD 160198 Specdb::NmrOneD 160199 Specdb::NmrOneD 160200 Specdb::NmrOneD 160201 Specdb::NmrOneD 160202 Specdb::NmrOneD 160203 Specdb::NmrOneD 160204 Specdb::NmrOneD 160205 Specdb::NmrOneD 160206 Specdb::NmrOneD 160207 Specdb::NmrOneD 160208 Specdb::NmrOneD 160209 Specdb::MsMs 9560 Specdb::MsMs 9561 Specdb::MsMs 9562 Specdb::MsMs 11390 Specdb::MsMs 11391 Specdb::MsMs 11392 Specdb::MsMs 16232 Specdb::MsMs 16233 Specdb::MsMs 16234 Specdb::MsMs 18062 Specdb::MsMs 18063 Specdb::MsMs 18064 Specdb::MsMs 2440231 Specdb::MsMs 2440232 Specdb::MsMs 2440233 Specdb::MsMs 2525016 Specdb::MsMs 2525017 Specdb::MsMs 2525018 HMDB0029937