Trichophytons: chemical classification and the isolation of tonsopurpurin and steroid E

Chromatography of the methylene chloride extracts of the dried mycelium of a number of Trichophyton species on a thin layer of silica gel may supplement other methods of classification of Trichophyton species. An unidentified steroid has been isolated from petroleum ether extracts of T. tonsurans 327, as well as brassicasterol and tonsopurpurin. The latter appears to be a pigment which has the chemical and physical characteristics of a naphthoquinone.