CAS 94-63-3|Pralidoxime Iodide

Introduction:Basic information about CAS 94-63-3|Pralidoxime Iodide, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
Common NamePralidoxime Iodide
CAS Number94-63-3Molecular Weight264.064
Density1.7439 g/mlBoiling Point/
Molecular FormulaC7H9IN2OMelting Point220 °C (dec.)(lit.)
MSDSChineseUSAFlash Point/
Symbol
GHS07
Signal WordWarning

Names

Namepralidoxime iodide
SynonymMore Synonyms

Pralidoxime Iodide BiologicalActivity

DescriptionPralidoxime iodide is a reactivator of acetylcholinesterase (AChE). Pralidoxime iodide reactivates nerve agent, which inhibits AChE via direct nucleophilic attack by the oxime moiety on the phosphorus center of the bound nerve agent. Pralidoxime iodide is an antidote for organophosphate poisoning[1][2].
Related CatalogResearch Areas >>Neurological DiseaseSignaling Pathways >>Neuronal Signaling >>AChE
In VivoPralidoxime iodide (10-150 mg/kg; i.m.) reverses paraoxon-induced respiratory toxicity in mice[3]. Animal Model: Male F1B6D2 mice (toxic but non-lethal model of diethylparaoxon in awake, unrestrained mice)[3] Dosage: 10, 50, 100 and 150 mg/kg Administration: Intramuscularly Result: Reversal of diethylparaoxon-induced respiratory toxicity at 150 mg/kg.
References

[1]. Cadieux CL, et al. Probing the activity of a non-oxime reactivator for acetylcholinesterase inhibited by organophosphorus nerve agents. Chem Biol Interact. 2016;259(Pt B):133‐141.

[2]. Eyer P, Buckley N. Pralidoxime for organophosphate poisoning. Lancet. 2006;368(9553):2110‐2111.

[3]. Houzé P, et al. High Dose of Pralidoxime Reverses Paraoxon-Induced Respiratory Toxicity in Mice. Turk J Anaesthesiol Reanim. 2018;46(2):131‐138.

Chemical & Physical Properties

Density1.7439 g/ml
Melting Point220 °C (dec.)(lit.)
Molecular FormulaC7H9IN2O
Molecular Weight264.064
Exact Mass263.975952
PSA36.47000
InChIKeyQNBVYCDYFJUNLO-UHFFFAOYSA-O
SMILESC[n+]1ccccc1C=NO.I
Storage condition2-8°C

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
UU4375000
CHEMICAL NAME :
Pyridinium, 2-formyl-1-methyl-, iodide, oxime
CAS REGISTRY NUMBER :
94-63-3
LAST UPDATED :
199710
DATA ITEMS CITED :
12
MOLECULAR FORMULA :
C7-H9-N2-O.I
MOLECULAR WEIGHT :
264.08
WISWESSER LINE NOTATION :
T6KJ A1 B1UNQ &Q &I

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 :
305 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
BJPCAL British Journal of Pharmacology and Chemotherapy. (London, UK) V.1-33, 1946-68. For publisher information, see BJPCBM. Volume(issue)/page/year: 13,202,1958
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
178 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
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: 129,31,1960
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intramuscular
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
249 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
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: 129,31,1960
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
1500 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
JPMSAE Journal of Pharmaceutical Sciences. (American Pharmaceutical Assoc., 2215 Constitution Ave., NW, Washington, DC 20037) V.50- 1961- Volume(issue)/page/year: 53,1143,1964
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
136 mg/kg
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - other changes
REFERENCE :
ABBIA4 Archives of Biochemistry and Biophysics. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.31- 1951- Volume(issue)/page/year: 60,261,1956
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
140 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AEHLAU Archives of Environmental Health. (Heldref Pub., 4000 Albemarle St., NW, Washington, DC 20016) V.1- 1960- Volume(issue)/page/year: 5,21,1962
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
145 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
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: 132,50,1961
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intramuscular
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
240 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 14,5,1964 *** REVIEWS *** TOXICOLOGY REVIEW JPMSAE Journal of Pharmaceutical Sciences. (American Pharmaceutical Assoc., 2215 Constitution Ave., NW, Washington, DC 20037) V.50- 1961- Volume(issue)/page/year: 53,1143,1964 TOXICOLOGY REVIEW JAMAAP JAMA, Journal of the American Medical Association. (AMA, 535 N. Dearborn St., Chicago, IL 60610) V.1- 1883- Volume(issue)/page/year: 166,1834,1958 TOXICOLOGY REVIEW AJMEAZ American Journal of Medicine. (Technical Pub., 875 Third Ave., New York, NY 10022) V.1- 1946- Volume(issue)/page/year: 50,475,1971

Safety Information

Symbol
GHS07
Signal WordWarning
Hazard StatementsH302
Personal Protective Equipmentdust mask type N95 (US);Eyeshields;Gloves
Hazard CodesXn:Harmful;
Risk PhrasesR22
Safety PhrasesS36
RIDADRNONH for all modes of transport
WGK Germany3
RTECSUU4375000

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Synonyms

2-Pyridinealdoxime methiodide
2-hydroxyiminomethyl-1-methylpyridinium iodide
protopamiodide
EINECS 202-349-6
1-methyl-2-hydroxyiminomethylpyridinium iodide
Pyridinium, 2-[(E)-(hydroxyimino)methyl]-1-methyl-, iodide (1:1)
pralidoximemethiodide
PRALIDOXIMELODIDE
PYRIDINE-2-CARBOXALDOXIME METHIODIDE
PRALIDOXIME IODIDE
MFCD00011982
pyridin-2-aldoxin
p-2-am
2-PAM
2-pamiodide
2-[(E)-(Hydroxyimino)methyl]-1-methylpyridinium iodide
2-[(hydroxyimino)methyl]-1-methylpyridinium iodide
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