Study on chemical constituents of Celosia cristata seed.

Abstract

To study the chemical constituents of Celosia cristata Solvent extraction,silica gel column chromatography,Sephadex LH-20 and recrystallization were used for the isolation and purification of the constituents. The structures of the extracts were identified on the basis of spectral analysis,such as UV,IR,1H-NMR,13C-NMR and MS. Results showed: From the EtOH extract of Celosia cristata,6 compounds were isolated and identified as 4-hydroxyphenethyl alcohol(1),kaempferol(2),quercetin(3),β-sitosterol(4),2-hydrox-yoctadecanoic acid (5),stigmasterol(6). 1,4—6 compounds are isolated from Celosia cristata for the first time.