1. Pralidoxime

Pralidoxime is a potent reactivator of acetylcholinesterase (AChE). Pralidoxime reactivates nerve agent-inhibited AChE via direct nucleophilic attack by the oxime moiety on the phosphorus center of the bound nerve agent. Pralidoxime is an antidote for organophosphate poisoning.

At equivalent molar concentrations, both the salt and free forms of a compound exhibit comparable biological activity. Nevertheless, the salt form (Pralidoxime chloride and Pralidoxime iodide) usually boasts enhanced water solubility and stability.

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Pralidoxime Chemical Structure

Pralidoxime Chemical Structure

CAS No. : 6735-59-7

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Description

Pralidoxime is a potent reactivator of acetylcholinesterase (AChE). Pralidoxime reactivates nerve agent-inhibited AChE via direct nucleophilic attack by the oxime moiety on the phosphorus center of the bound nerve agent. Pralidoxime is an antidote for organophosphate poisoning[1][2].

In Vivo

Pralidoxime (10-150 mg/kg; intramuscular administration, once) reverses paraoxon-induced respiratory toxicity in mice[3].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: F1B6D2 mice (male, administered subcutaneously diethylparaoxon)[3]
Dosage: 10, 50, 100, and 150 mg/kg
Administration: Intramuscular administration, once
Result: Induced a partial, albeit complete, reversal of respiratory toxicity at 50 mg/kg, and completely reversed diethylparaoxon-induced respiratory toxicity in mice at 150 mg/kg.
Clinical Trial
Molecular Weight

137.16

Formula

C7H9N2O+

CAS No.
SMILES

C[N+]1=CC=CC=C1/C=N/O

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  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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Pralidoxime
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HY-B1738
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