(a) Mercaptoimidazoline and 2-mercaptoimidazoline both have the molecular formula C3H6N2S. They are synthetic chemicals not found in natural products and have been used in the production of rubber articles that may come into contact with food.
(b) Food containing any added or delectable levels of these substances is deemed to be adulterated in violation of the act based upon an order published in the Federal Register of November 30, 1973 (38 FR 33072). Sec. 189.280 4,4'-Methylenebis (2-chloro analine).
(a) 4,4'-Methylenebis (2-chloroanaline) has the molecular formula, C13H12Cl2N2. It is a synthetic chemical not found in natural products and has been used as a polyurethane curing agent and as a component of food packaging adhesives and polyurethane resins.
(b) Food containing any added or detectable level of this substance is deemed to be adulterated in violation of the act based upon an order published in the Federal Register of December 2, 1969 (34 FR 19073).