*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : KL4375000
CHEMICAL NAME           : Ethanol, 2-(isobutylamino)-, p-aminobenzoate (ester),
                          monohydrochloride
CAS REGISTRY NUMBER     : 553-68-4
LAST UPDATED            : 199012
DATA ITEMS CITED        : 7
MOLECULAR FORMULA       : C13-H20-N2-O2.Cl-H
MOLECULAR WEIGHT        : 272.81
WISWESSER LINE NOTATION : ZR DVO2M1Y1&1
COMPOUND DESCRIPTOR     : Drug
SYNONYMS/TRADE NAMES :
   * p-Aminobenzoic acid ester of 2-isobutylaminoethanol hydrochloric acid  
   salt
   * p-Aminobenzoic acid 2-(isobutylamino)ethyl ester hydrochloride
   * Benzoic acid, p-amino-, 2-(isobutylamino)ethyl ester, hydrochloride
   * Butethamine hydrochloride
   * Ibylcaine hydrochloride
   * 2-Isobutylaminoethanol hydrochloric acid salt, p-aminobenzoic acid ester
   * 2-(Isobutylamino)ethyl p-aminobenzoate hydrochloride
   * Monocaine hydrochloride
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 182 mg/kg
TOXIC EFFECTS :
   Behavioral - convulsions or effect on seizure threshold
   Behavioral - muscle contraction or spasticity
   Lungs, Thorax, or Respiration - other changes
REFERENCE :
   ANESAV Anesthesiology.  (Lippincott/Harper, Journal Fulfillment Dept., 2350
   Virginia Ave., Hagerstown, MD 21740)  V.1-    1940- Volume(issue)/page/year:
   3,398,1942
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intravenous
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 28 mg/kg
TOXIC EFFECTS :
   Behavioral - convulsions or effect on seizure threshold
   Behavioral - muscle contraction or spasticity
   Lungs, Thorax, or Respiration - other changes
REFERENCE :
   ANESAV Anesthesiology.  (Lippincott/Harper, Journal Fulfillment Dept., 2350
   Virginia Ave., Hagerstown, MD 21740)  V.1-    1940- Volume(issue)/page/year:
   3,398,1942
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 169 mg/kg
TOXIC EFFECTS :
   Behavioral - convulsions or effect on seizure threshold
   Behavioral - excitement
   Lungs, Thorax, or Respiration - respiratory stimulation
REFERENCE :
   AIPTAK Archives Internationales de Pharmacodynamie et de Therapie. (Heymans
   Institute of Pharmacology, De Pintelaan 185, B-9000 Ghent, Belgium)  V.4-   
   1898-  Volume(issue)/page/year: 115,483,1958
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Subcutaneous
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 449 mg/kg
TOXIC EFFECTS :
   Behavioral - convulsions or effect on seizure threshold
   Behavioral - muscle contraction or spasticity
   Lungs, Thorax, or Respiration - other changes
REFERENCE :
   ANESAV Anesthesiology.  (Lippincott/Harper, Journal Fulfillment Dept., 2350
   Virginia Ave., Hagerstown, MD 21740)  V.1-    1940- Volume(issue)/page/year:
   3,398,1942
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intravenous
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 36 mg/kg
TOXIC EFFECTS :
   Behavioral - convulsions or effect on seizure threshold
   Behavioral - excitement
   Lungs, Thorax, or Respiration - respiratory stimulation
REFERENCE :
   AIPTAK Archives Internationales de Pharmacodynamie et de Therapie. (Heymans
   Institute of Pharmacology, De Pintelaan 185, B-9000 Ghent, Belgium)  V.4-   
   1898-  Volume(issue)/page/year: 115,483,1958
 
TYPE OF TEST            : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE       : Intravenous
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 30 mg/kg
TOXIC EFFECTS :
   Behavioral - altered sleep time (including change in righting reflex)
   Behavioral - convulsions or effect on seizure threshold
   Behavioral - muscle contraction or spasticity
REFERENCE :
   JPETAB Journal of Pharmacology and Experimental Therapeutics.  (Williams &
   Wilkins Co., 428 E. Preston St., Baltimore, MD 21202)  V.1-    1909/10-
   Volume(issue)/page/year: 62,69,1938
 
TYPE OF TEST            : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE       : Subcutaneous
SPECIES OBSERVED        : Rodent - guinea pig
DOSE/DURATION           : 215 mg/kg
TOXIC EFFECTS :
   Peripheral Nerve and Sensation - flaccid paralysis without anesthesia
   (usually neuromuscular blockage)
   Behavioral - convulsions or effect on seizure threshold
   Behavioral - changes in motor activity (specific assay)
REFERENCE :
   JPETAB Journal of Pharmacology and Experimental Therapeutics.  (Williams &
   Wilkins Co., 428 E. Preston St., Baltimore, MD 21202)  V.1-    1909/10-
   Volume(issue)/page/year: 62,69,1938
 
                            *** END OF RECORD ***