Tob. Sci., 1960, 4-26, p. 130-136, ISSN.0082-4623
The isolation and identification of pyrocoll from cigarette smoke
Research Department, Liggett and Myers Tobacco Company, Durham, North Carolina USA
Pyrocoll (I), the diketopiperazine derivative of pyrrole-2-carboxylic acid, has been found in cigarette smoke to the extent of 1.4 mgm per thousand cigarettes. Proline present in the tobacco, free and combined, has been proposed as a possible...