The heartwood constituents of an Australian specimen of C. inophyllum L., are shown to be jacareubin, 1,7dihydroxyxanthone (euxanthone), 1,5,6-trihydroxyxanthone, 1,6-dihydroxy-5-methoxyxanthone (buchanaxanthone), 6-desoxyjacareubin, 2-(3,3-dimethylallyl)-1,3,5-trihydroxyxanthone and 2-(3,3-dimethylallyl)-1,3,5,6-tetrahydroxyxanthone (the latter two isolated as their methyl ether derivatives). These metabolites are compared with those obtained from specimens of the same species collected in Malagasy and in India.