Microbial sulpholipids: (R)-13-chloro-1-(R)-14-docosanediol disulphate and polychlorosulpholipids in Ochromonas danica

During an investigation of the sulpholipids of the phytoflagellate Ochromonas danica we have described the sulphatide S-14-docosyl sulphate This sulpholipid was the first alkyl sulphate to be identified in a complex mixture of sulphatides. These sulpholipids are unique as polar lipids, since they have ionic groups at both ends of the molecule. Equally novel is the fact that chloride is a con- stituent part of the natural sulphatide. The present communication describes the second sulphatide in this group of sulphatides. It is threo-(R)-13-chloro-1-(R)-14-docosanediol disulphate.