Denatonium Benzoate is a bittering agent which is used to give a bitter taste to toxic products in order to make the product more difficult to ingest. Examples of products which contain denatonium benzoate are: antifreeze, detergents (in ethanol), floor cleaner, paint stripper and toilet cleaner.
Denatonium benzoate is so bitter that humans and pets can't stand it. Denatonium Benzoate is the active ingredient in products such as Tree Guard and Bitrex™.
Denatonium benzoate combined with bad smelling compounds can also be used to repel animals. DB is also an active ingredient in "Off Limits Dog Training Spray", "Anit-Chew Bitter Spray for Pets", "Ultra-Bitter Training Aid Spray", "Bitter YUCK! No Chew Dog, Cat & Horse Spray".
DB is a white powder with water solubility of 42 grams per liter. One gram of DB can produce an extremely bitter and unpleasant taste in 100 liters of water (30 gallons).
CAS Number: 3734-33-6
Molecular Weight: 446.58
Beilstein Registry Number: 8179408
Linear Formula: C21H29N2O · C7H5O2