from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The most bitter chemical compound known, whose salts are used as aversive agents to prevent accidental ingestion of dangerous substances.


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  • Product manufacturers as well as some humane groups are proposing to protect pets and people from antifreeze poisoning by adding a bitter, taste-aversive agent such as denatonium benzoate (Bitrex┬«) to ethylene glycol-containing automobile antifreeze, and federal legislation has been proposed to this effect.


  • To avoid the high taxes on ethanol for consumption, additives are added to make it unpalatable (such as denatonium benzoate-\ "Bitrex\") or poisonous (such as methanol).

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  • The Consumer Specialty Products Association, which represents antifreeze manufacturers, opposes laws requiring the addition of denatonium benzoate to engine coolant.

    Law Targets Poisonings by Antifreeze

  • The law requires that any engine coolant or antifreeze manufactured after Jan. 1, 2011, and sold in Virginia must contain denatonium benzoate.

    Law Targets Poisonings by Antifreeze

  • Lafield said denatonium benzoate could end up polluting the environment.

    Law Targets Poisonings by Antifreeze

  • (R-Jefferson), who has proposed legislation to require that a bitter-tasting chemical -- denatonium benzoate -- be added to antifreeze sold in the state beginning in 2011. - News

  • Benton said adding small amounts of denatonium benzoate would deter children, pets and wildlife from consuming antifreeze. - News

  • A new regulation mandating the use of the bittering agent denatonium benzoate, will be effective Jan. 1, 2011.


  • In the previous decade, Oregon was the first state to denatonium benzoate (DB) be added to antifreeze and windshield washer fluid.


  • In fact, The ASPCA's Animal Poison Control Center (APCC) regularly receives calls involving dogs who have consumed mouse poison containing denatonium benzoate.


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