sentences:  The term "Centralite" was originally applied to dimethyldiphenylurea developed about 1906 at the German Central War Laboratory "Zentralstelle für wissenschaftlich-technische Untersuchungen" in Neubabelsberg as a deterrent coating for smokeless powder in military rifle cartridges.Thereafter, all hydrocarbon-substituted symmetrical diphenyl urea compounds used as smokeless powder deterrents (or moderants) were called centralites after the laboratory.The preferred ethyl centralite became known as Centralite No.