RTECS NUMBER : TH1050000
CHEMICAL NAME : Phosphorous acid, tri-o-cresyl ester
CAS REGISTRY NUMBER : 2622-08-4
LAST UPDATED : 199409
DATA ITEMS CITED : 3
MOLECULAR FORMULA : C21-H21-O6-P
MOLECULAR WEIGHT : 400.39
WISWESSER LINE NOTATION : QR B1OPO1R BQ&O1R BQ
SYNONYMS/TRADE NAMES :
* Tri-o-cresyl phosphite
*** HEALTH HAZARD DATA ***
** ACUTE TOXICITY DATA **
TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 10 gm/kg
TOXIC EFFECTS :
Peripheral Nerve and Sensation - flaccid paralysis without anesthesia
(usually neuromuscular blockage)
Behavioral - tremor
Behavioral - muscle weakness
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: 49,78,1933
TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Bird - chicken
DOSE/DURATION : 1 gm/kg
TOXIC EFFECTS :
Peripheral Nerve and Sensation - flaccid paralysis without anesthesia
(usually neuromuscular blockage)
Behavioral - tremor
Behavioral - muscle weakness
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: 49,78,1933
** OTHER MULTIPLE DOSE TOXICITY DATA **
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Bird - chicken
DOSE/DURATION : 900 mg/kg/90D-I
TOXIC EFFECTS :
Spinal Cord - other degenerative changes
Behavioral - ataxia
Biochemical - Enzyme inhibition, induction, or change in blood or tissue
levels - true cholinesterase
REFERENCE :
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E.
First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year:
53,150,1980
*** END OF RECORD ***
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