*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : UU5283000
CHEMICAL NAME           : Pyridinium, 3-hydroxy-1-methyl-, dimethylcarbamate
                          (ester)
CAS REGISTRY NUMBER     : 155-97-5
BEILSTEIN REFERENCE NO. : 1428269
REFERENCE               : 5-21-02-00078 (Beilstein Handbook Reference)
LAST UPDATED            : 199612
DATA ITEMS CITED        : 6
MOLECULAR FORMULA       : C9-H13-N2-O2
MOLECULAR WEIGHT        : 181.24
WISWESSER LINE NOTATION : T6KJ A1 COVN1&1
SYNONYMS/TRADE NAMES :
   * 3-(((Dimethylamino)carbonyl)oxy)-1-methylpyridinium
   * Pyridinium, 3-(((dimethylamino)carbonyl)oxy)-1-methyl-
   * Pyridostigmine
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intramuscular
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 2790 ug/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   DCTODJ Drug and Chemical Toxicology.  (Marcel Dekker, 270 Madison Ave., New
   York, NY 10016) V.1-    1977/78-  Volume(issue)/page/year: 1,355,1978
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 2700 ug/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   FAATDF Fundamental and Applied Toxicology.  (Academic Press, Inc., 1 E.
   First St., Duluth, MN 55802) V.1-    1981-  Volume(issue)/page/year:
   1,217,1981
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Subcutaneous
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 3300 ug/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   APTOA6 Acta Pharmacologica et Toxicologica.  (Copenhagen, Denmark)  V.1-59,
   1945-86.  For publisher information, see PHTOEH  Volume(issue)/page/year:
   45,9,1979
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intramuscular
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 1867 ug/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   JMCMAR Journal of Medicinal Chemistry.  (American Chemical Soc.,
   Distribution Office Dept. 223, POB POB 57136, West End Stn., Washington, DC
   20037)  V.6-    1963-  Volume(issue)/page/year: 33,577,1990
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 53900 ug/kg
TOXIC EFFECTS :
   Biochemical - Enzyme inhibition, induction, or change in blood or tissue
   levels - true cholinesterase
REFERENCE :
   DCTODJ Drug and Chemical Toxicology.  (Marcel Dekker, 270 Madison Ave., New
   York, NY 10016) V.1-    1977/78-  Volume(issue)/page/year: 3,319,1980
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intramuscular
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 2800 ug/kg
TOXIC EFFECTS :
   Biochemical - Enzyme inhibition, induction, or change in blood or tissue
   levels - true cholinesterase
REFERENCE :
   DCTODJ Drug and Chemical Toxicology.  (Marcel Dekker, 270 Madison Ave., New
   York, NY 10016) V.1-    1977/78-  Volume(issue)/page/year: 3,319,1980
 
                            *** END OF RECORD ***