1.0 2010-04-08 22:15:13 UTC 2018-05-29 01:47:53 UTC FDB020717 Kamahine B Constituent of honey from Weinmannia racemosa Kamahine B C14H20O5 268.3056 268.13107375 (1S,4'S,5R,5'S,6R)-5,5'-dihydroxy-4,4',8,8-tetramethyl-7-oxaspiro[bicyclo[3.2.1]octane-6,2'-oxolan]-3-en-2-one (1S,4'S,5R,5'S,6R)-5,5'-dihydroxy-4,4',8,8-tetramethyl-7-oxaspiro[bicyclo[3.2.1]octane-6,2'-oxolan]-3-en-2-one 160709-07-9 CC1CC2(OC1O)OC1C(=O)C=C(C)C2(O)C1(C)C InChI=1S/C14H20O5/c1-7-6-13(19-11(7)16)14(17)8(2)5-9(15)10(18-13)12(14,3)4/h5,7,10-11,16-17H,6H2,1-4H3 NKEIHMMKFOXWAO-UHFFFAOYSA-N belongs to the class of organic compounds known as ketals. These are acetals derived from ketones by replacement of the oxo group by two hydrocarbyloxy groups R2C(OR)2 ( R not Hydrogen ). This term, once abandoned, has been reinstated as a subclass of acetals. Ketals Organic compounds Organic oxygen compounds Organooxygen compounds Ethers Aliphatic heteropolycyclic compounds Aldehydes Cyclohexenones Hemiacetals Hydrocarbon derivatives Organic oxides Oxacyclic compounds Oxolanes Tertiary alcohols Alcohol Aldehyde Aliphatic heteropolycyclic compound Carbonyl group Cyclohexenone Hemiacetal Hydrocarbon derivative Ketal Ketone Organic oxide Organoheterocyclic compound Oxacycle Oxolane Tertiary alcohol logp 1.5 ChemAxon pka_strongest_acidic 11.77 ChemAxon pka_strongest_basic -4.1 ChemAxon iupac (1S,4'S,5R,5'S,6R)-5,5'-dihydroxy-4,4',8,8-tetramethyl-7-oxaspiro[bicyclo[3.2.1]octane-6,2'-oxolan]-3-en-2-one ChemAxon average_mass 268.3056 ChemAxon mono_mass 268.13107375 ChemAxon smiles CC1CC2(OC1O)OC1C(=O)C=C(C)C2(O)C1(C)C ChemAxon formula C14H20O5 ChemAxon inchi InChI=1S/C14H20O5/c1-7-6-13(19-11(7)16)14(17)8(2)5-9(15)10(18-13)12(14,3)4/h5,7,10-11,16-17H,6H2,1-4H3 ChemAxon inchikey NKEIHMMKFOXWAO-UHFFFAOYSA-N ChemAxon polar_surface_area 75.99 ChemAxon refractivity 67.11 ChemAxon polarizability 27.41 ChemAxon rotatable_bond_count 0 ChemAxon acceptor_count 5 ChemAxon donor_count 2 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon