Product Name

  • Name

    2-PYRIDINEALDOXIME METHYL METHANESULFONATE

  • EINECS
  • CAS No. 154-97-2
  • Article Data4
  • CAS DataBase
  • Density g/cm3
  • Solubility
  • Melting Point 155°
  • Formula C7H10N2O•CH3O3S
  • Boiling Point 189.7°Cat760mmHg
  • Molecular Weight 232.26
  • Flash Point 68.5°C
  • Transport Information
  • Appearance
  • Safety Poison by intraperitoneal, subcutaneous, intravenous, and intramuscular routes. Moderately toxic by ingestion. Human systemic effects by ingestion: gastrointestinal changes; by intravenous route: blood pressure elevation. When heated to decomposition it emits very toxic fumes of NOx and SOx.
  • Risk Codes
  • Molecular Structure Molecular Structure of 154-97-2 (2-PYRIDINEALDOXIME METHYL METHANESULFONATE)
  • Hazard Symbols
  • Synonyms pralidoximemesilate;PralidoximeMesylate;NMethylpyridinium2aldoximemesylate(Pralidoximemesylate),>98%;PralidoxmeMesylate;Pralidoximemethylsulfate
  • PSA 102.05000
  • LogP 0.56140

Pralidoxime mesylate Chemical Properties

Molecule structure of Pralidoxime mesylate (CAS NO.154-97-2):

IUPAC Name: Methanesulfonate; [(E)-(1-methylpyridin-2-ylidene)methyl]-oxoazanium 
Molecular Weight: 232.25688 g/mol
Molecular Formula: C8H12N2O4S
H-Bond Donor: 1
H-Bond Acceptor: 5
Rotatable Bond Count: 1
Tautomer Count: 2
Exact Mass: 232.051778
MonoIsotopic Mass: 232.051778
Topological Polar Surface Area: 91.5
Heavy Atom Count: 15
Complexity: 295
Canonical SMILES: CN1C=CC=CC1=C[NH+]=O.CS(=O)(=O)[O-]
Isomeric SMILES: CN\1C=CC=C/C1=C\[NH+]=O.CS(=O)(=O)[O-]
InChI: InChI=1S/C7H8N2O.CH4O3S/c1-9-5-3-2-4-7(9)6-8-10;1-5(2,3)4/h2-6H,1H3;1H3,(H,2,3,4)/b7-6+;
InChIKey: WWZYJJGFUIAWNW-UHDJGPCESA-N
EINECS of Pralidoxime mesylate (CAS NO.154-97-2): 205-839-8

Pralidoxime mesylate Toxicity Data With Reference

1.    

orl-hmn TDLo:52,500 mg/kg/4W-I:GIT

     AEHLAU    Archives of Environmental Health. 15 (1967),599.
2.    

ivn-hmn TDLo:45 mg/kg:CVS

     AEHLAU    Archives of Environmental Health. 15 (1967),599.
3.    

orl-rat LD50:7000 mg/kg

     CJBPAZ    Canadian Journal of Biochemistry and Physiology. 39 (1961),351.
4.    

ipr-rat LD50:262 mg/kg

     BJPCAL    British Journal of Pharmacology and Chemotherapy. 13 (1958),202.
5.    

scu-rat LD50:332 mg/kg

     BJPCAL    British Journal of Pharmacology and Chemotherapy. 13 (1958),202.
6.    

ivn-rat LD50:109 mg/kg

     BJPCAL    British Journal of Pharmacology and Chemotherapy. 13 (1958),202.
7.    

ims-rat LD50:188 µg/kg

     BJPCBM    British Journal of Pharmacology. 39 (1970),822.
8.    

orl-mus LD50:3700 mg/kg

     CJBPAZ    Canadian Journal of Biochemistry and Physiology. 39 (1961),351.
9.    

scu-mus LD50:165 mg/kg

     BJPCAL    British Journal of Pharmacology and Chemotherapy. 13 (1958),202.
10.    

ivn-mus LD50:122 mg/kg

     BJPCAL    British Journal of Pharmacology and Chemotherapy. 13 (1958),202.

Pralidoxime mesylate Safety Profile

Poison by intraperitoneal, subcutaneous, intravenous, and intramuscular routes. Moderately toxic by ingestion. Human systemic effects by ingestion: gastrointestinal changes; by intravenous route: blood pressure elevation. When heated to decomposition it emits very toxic fumes of NOx and SOx.

Pralidoxime mesylate Specification

 Pralidoxime mesylate (CAS NO.154-97-2) is also named as 1-Methylpyridinium-2-aldoxime methanesulfonate ; 2-Formyl-1-methylpyridinium methanesulfonate oxime ; 2-Formyl-N-methylpyridinium oxime methanesulfonate ; 2-Hydroxyiminomethyl-N-methylpyridinium methanesulfonate ; 2-Hydroxyiminomethyl-N-methylpyridinium methanesulphonate ; 2-Pam methanesulfonate ; Contrathion ; N-Methylpyridinium methane sulfonate 2-aldoxime ; N-Methylpyridinium-2-aldoxime methanesulphonate ; P2S ; Pralidoxime methanesulfonate ; Pralidoxime methosulfate ; Protopam methanesulfonate ; Pyridine-2-aldoxime methyl methane sulfonate ; Pyridinium, 2-((hydroxyimino)methyl)-1-methyl-, methanesulfonate ; Pyridinium, 2-aldoxime, N-methyl methanesulphonate ; UNII-45CO7XIN2K .

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