In order to understand the chemical constituents of Spermacoce latifolia, nine compounds were isolated from the ethanol extract of the whole plant of S. latifolia. On the basis of spectral data, their structures were identified as 5 ̄hydroxy ̄methyl ̄2 ̄furalclehyde (1),stigmasterol (2),β ̄daucosterol (3),succinic acid (4),2 ̄ethyl ̄3 ̄methylfumaric acid (5),diethyl malonate (6),8,11,12 ̄trihydroxy ̄9 ̄heptadecenoic acid (7),9,12,13 ̄tri ̄hydroxyoctadec ̄7 ̄enoic acid (8),and (9Z,12Z) ̄6 ̄hydroxyoctadeca ̄9,12 ̄ dienoic acid (9).Compounds 1~9 wer...