A polysaccharide, isolated from Centella asiatica, was a complicated arabinogalactan(AG), which contained a little α-(1→4)-linked GalpA and α-(1→>2)-linked
Pyrite nickel disulfide and millerite nickel monosulfide have been successfully prepared by solvothermal method based on the reaction of Ni(NO3)26H2O and H2NC(S
Two new acetylxylosides,ent-manool-13-O-β-D-2′-acetylxylopyranoside(1)and entmanool-13-O-β-D-2′,4′-diacetylxylopyranoside(2)were isolated from Aster veitch