Toxicological trivia on August 19, 2009:  The name of a disinfectant known as creolin refered: 
a) A trade name;
b) A chemical structure;
c) A generic name.

Answer c. Creolin is a generic name for disinfectants whose composition varies according to the source. The main active component (and toxic) are phenols (26%), neutral oils of coal tar (51%), soaps (13%) and water (10%). [source: Sertox, see in Spanish]