Denatonium Benzoate 

Material Safety Data Sheet 




1. Identification of the Substance and the Company 


Substance:  Denatonium Benzoate 

CAS#:  3734-33-6 

Supplier:  Aversion Technologies, Inc.   0 

12220 Maycheck Lane                                                  

Bowie, Maryland 20715 USA 

Telephone: +1-202-657-6300 

Emergency No: +1-202-365-9001 

Web Address: 



2. Composition: 


Substance:  Ammonium, Benzyl diethyl ((2,6,Xylylcarbamoyl) methyl)-Benzoate (Denatonium Benzoate) 

% content: >99.5% 

CAS No: 3734-33-6 

Classification: Xn Harmful 

EINECS: 223-095-2 



3. Hazard Identification 


Harmful if ingested in large amount 



4. First Aid Measures 


General:  Remove victim immediately from source of exporsure.  Provide rest, warmth and fresh air. Get medical attention if any discomfort continues. 


Inhalation:  NEVER MAKE AN UNCONSCIOUIS PERSON VOMIT OR DRINK FLUIDS!  Provide rest, warmth anf fresh air. Rinse mouth thoroughly. Drink plenty of water. Get medical  attention if any  

 discomfort continues.  


Eye:  Flush immediately with plenty of gently flowing clean water/saline, occasionally lifting eye lids until no evidence of chemical remains. Obtain medical attention immediately. 


Skin:  Remove contaminated clothing. Wash affected areas with plenty of soap and water preferably under a shower, at least 15 - 20 minutes until no chemical remains. Obtain medical attention if skin is irritated or any symptoms develop. 



5. Fire Fighting Measures 


EXTINGUISHING MEDIA:  Use foam, water spray, fog or mist. Carbon dioxide (CO2) dry chemcicals. DO NOT USE full  water jet.  


SPECIAL FIRE FIGHTING PROCEDURES: Use pressurized air mask if substance is involved in a fire. Avoid breathing fire vapors. Fireproof overalls/suit, booths and gloves should be worn. 


UNUSUAL FIRE AND EXPLOSION HAZARDS:  This product does not pose a particular hazard. 


HAZARDOUS COMBUSTION PRODUCTS:  Fire creates Nitrogen Oxides 



6.  Accidental Release Measures 


PERSONAL PRECAUTIONS IN SPILL: Wear disposable gloves and overalls. Boots, Air Hood/Respirator is required.  




SPILL CLEANUP METHODS: Granules should be dealt with in such a way as to prevent particles being spread in the air causing an  unpleasant taste. 



7.  Handling and Storage 


USAGE PRECAUTIONS:  While handling manually avoid contact with skin, eyes and clothing. Handle using techniques to minimize dust. 


STORAGE PRECAUTIONS:  Keep dry, ventilated storage and closed containers. Keep separate from food, feed- stuffs, fertilizers, and other sensitive materials.  


STORAGE CRITERIA:  Keep in cool dry place. 




8. Exposure Controls 


INGREDIENT NAME: Denatonium Benzoate 

CAS NO: 3734-33-6 


LT EXP: No std 

ST EXP 15 Min: No std 


INGREDIENT COMMENTS:  OES = Occupational Exposure Standard. MEL = Maximum Exposure Limit 



VENTILATION:  If small quantities an airhood or suitable dust mask should be worn. If dust concentrations are high, an airhood or airsuit are  recommended. 


PROTECTIVE GLOVES:  Use rubber or plastic gloves and sleeving. 


EYE PROTECTION:  Wear safety glasses with side shields. Add respiratory protection if concentrations are high. 


SKIN PROTECTION:  Disposable overalls if concentrations are high. 


HYGIENIC WORK PRACTICES:  Wash at the end of each work shift and before eating, smoking, and using the toilet. Wash promptly with soap and water if skin becomes contaminated.  Promptly remove any clothing that becomes contaminated. No eating or drinking while working with this material. 



9. Physical and chemical properties 


APPEARANCE: Crystaline powder 


COLOR: White granules 


ODOR/TASTE: Odorless, bitter taste 


BOILING POINT (°C, Interval): N/A   Pressure: N/A 


DENSITY/SPECIFIC GRAVITY (g/ml):  N/A Temperature (°C): N/A 


VAPOR PRESSURE: N/A   Temperature (°C): N/A 




FLASH POINT (°C): N/A   Method: CC (Closed cup) 








10. Stability and reactivity 


STABILITY:  Product stable up to 140°




MATERIALS TO AVOID:  Certain strong oxidizing agents such as Sodium Hypochlorite and Hydrogen Peroxide 


HAZARDOUS DECOMP PRODUCTS:  Nitorgen oxides are formed when denatonium benzoate  decomposes on heating or when involved in fire 



11. Toxicology information 


Toxicity Data: 


Oral LD50 (Female Rat)  584 mg/kg 

Oral LD50 (Male Rat)  640 mg/kg 

Oral LD50 (Rat)  >2000 mg/kg 


INHALATION:  Only one known case of toxic effect in man from denatonium benzoate causing asthmatic persons who are allergic to Lignocaine or some similar anesthetics may also react to denatonium benzoate and should therefore avoid contact with the material. 


INGESTION:  Bitterest substance know to man. No information on adverse effects. 


SKIN:  Low skin sensitivity potential and therefore may  be mildly irritating to skin.  


EYES:  No information available 



12. Ecological Information 


Denatonium does not bio-accumulate 

LC50 Rainbow Trout:  >1000 mg/l 96 hrs in fresh water 

LC50 Shrimp :  400 mg/l 96 hrs in salt water 



13. Disposal Considerations 


DISPOSAL METHODS:  Dispose of in accordance with local authority requirements. This material should be incinerated in a licensed facility. 




14. Transport information 


GENERAL:  Supplied in limited quantity packages 


UN No:  2811 


EEC Regulations:  

   EINECS Number   2230952 

   CAS No.  34421 

   TARIFF No:  29243000 


IATA/ICAO: This material is not classified as dangerous 



15. Regulatory Information 





Material Safety Data Sheet   Denatonium Benzoate 


RISK PHRASES:  R20/22 Harmful by inhalation and if swallowed 



S36.37 Wear suitable protective clothing and  gloves S46 If swallowed seek medical advice immediately  


STATUTORY INSTRUMENTS:  Chemicals (Hazard Information and Packaging) Regulations. Control of Substances Hazardous to Health 


GUIDANCE NOTES: Occupational Exposure Limits EH40 Introduction to Local Exhaust Ventilation HS(G)37 CHIP for Everyone HSG (108) 



16. Other Information 


INFORMATION SOURCES:  Material Safety Data Sheet, Misc. manufactures 

REVISION DATE:  January 1, 2006 


DISCLAIMER: Every effort has been made to ensure that this information is accurate and up to date. Users are reminded that they should ensure that they have retained or internally circulated the most up to date copy as provided to the persons or work locations which require them. No warranty is implied or given as to suitability for use for any activity which is not covered by either the technical data sheet or restrictions of use as above.  



Where to Buy

Aversion Technologies, Inc.