(a) Thiourea is the chemical thiocarbamide, CH
(b) Food containing any added or detectable level of thiourea is deemed to be adulterated under the act.
(c) The analytical methods used for detecting thiourea are in sections 20.115-20.126 of the “Official Methods of Analysis of the Association of Official Analytical Chemists,” 13th Ed. (1980), which is incorporated by reference. Copies may be obtained from the AOAC INTERNATIONAL, 481 North Frederick Ave., suite 500, Gaithersburg, MD 20877, or may be examined at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.