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	{{~~Short description\|~~A ~~chemical compound belonging to the~~ Novichok ~~family of nerve agents}}~~		{{DISPLAYTITLE:A-262 (Novichok agent)}}
	~~{{Use dmy dates\|date=October 2023~~}}

	~~'''~~A-262~~''' is a chemical compound that belongs to the [[~~Novichok agent~~\|Novichok]] family of nerve agents. These agents were developed in the Soviet Union during the Cold War and are known for their high toxicity and potential use in chemical warfare.~~		== A-262 (Novichok agent) ==

	==Chemical ~~Structure==~~		[[File:Novichok_A262_(Mirzayanov_2009).svg\|thumb\|right\|Chemical structure of A-262]]
	~~A-262 is an organophosphate compound, which means it contains phosphorus as part of its chemical structure. The specific~~ structure of A-262 ~~includes a phosphorus atom bonded to various organic groups, which contribute to its potency as a nerve agent.~~

	~~==Mechanism of Action==~~		A-262 is a chemical compound classified as a [[nerve agent]] and is part of the [[Novichok]] family of agents. These agents were developed in the [[Soviet Union]] during the late stages of the [[Cold War]] as part of a program to create more potent chemical weapons that could evade international detection and bans.
	~~Like other nerve agents,~~ A-262 ~~functions by inhibiting~~ the ~~enzyme~~ [[~~acetylcholinesterase~~]]. ~~This enzyme is responsible for breaking down~~ the ~~neurotransmitter~~ [[~~acetylcholine~~]] in the ~~synaptic cleft. Inhibition~~ of ~~acetylcholinesterase leads~~ to ~~an accumulation of acetylcholine, resulting in continuous stimulation of muscles, glands,~~ and ~~central nervous system structures~~.

	==~~Toxicity~~==		== Chemical Properties ==
	A-262 is highly toxic, with effects similar to other nerve agents such as [[sarin]] and [[VX (nerve agent)\|VX]]. Exposure to even small amounts can be fatal, and symptoms of poisoning include muscle twitching, respiratory distress, convulsions, and loss of consciousness.

	~~==History and Development==~~		A-262, like other Novichok agents, is an [[organophosphate]] compound. It is designed to inhibit the enzyme [[acetylcholinesterase]], leading to an accumulation of [[acetylcholine]] in the [[synaptic cleft]] and causing continuous stimulation of [[muscle]]s, [[gland]]s, and [[central nervous system]] functions.
	~~The development of~~ A-262 ~~and~~ other Novichok agents ~~was part~~ of ~~a secret Soviet program aimed at creating more potent chemical weapons that could evade detection by international monitoring systems. The existence~~ of ~~these agents was revealed by~~ [[~~Vil Mirzayanov~~]], ~~a former Soviet scientist~~, ~~in the 1990s~~.

	==~~Detection~~ and ~~Protection~~==		== Mechanism of Action ==
	~~Detection~~ of A-262 and other Novichok agents requires specialized equipment capable of identifying trace amounts of ~~these compounds~~. ~~Protective measures include~~ the use of [[~~personal protective equipment~~]] (~~PPE~~) ~~such as gas masks~~ and ~~protective suits, as well as~~ the ~~administration of antidotes like [[atropine]]~~ and ~~[[pralidoxime]]~~.
			The primary mechanism of action for A-262 involves the irreversible binding to the active site of acetylcholinesterase. This binding prevents the breakdown of acetylcholine, resulting in prolonged [[neuromuscular]] transmission and [[cholinergic crisis]]. Symptoms of exposure can include [[muscle twitching]], [[respiratory failure]], [[convulsions]], and potentially [[death]].

			== Toxicity and Effects ==

			A-262 is highly toxic, with effects similar to other nerve agents such as [[sarin]] and [[VX]]. Exposure can occur through [[inhalation]], [[skin contact]], or [[ingestion]]. The rapid onset of symptoms necessitates immediate medical intervention, typically involving the administration of [[atropine]] and [[pralidoxime]] to counteract the effects.

			== History and Development ==

			The development of A-262 and other Novichok agents was part of a clandestine effort by the Soviet Union to create chemical weapons that could bypass existing [[arms control]] measures. The existence of these agents was not widely known until the 1990s, when former Soviet scientist [[Vil Mirzayanov]] revealed details about the program.

			== Detection and Decontamination ==

			Detection of A-262 requires specialized equipment capable of identifying trace amounts of the compound. Decontamination procedures involve the use of [[reactive skin decontamination lotion]] (RSDL) and other chemical neutralizers to remove the agent from surfaces and skin.

			== Related Pages ==

	~~==Related pages==~~
	* [[Novichok agent]]		* [[Novichok agent]]
			* [[Nerve agent]]
	* [[Chemical warfare]]		* [[Chemical warfare]]
	* [[Organophosphate poisoning]]
	* [[Acetylcholinesterase inhibitor]]		* [[Acetylcholinesterase inhibitor]]

	~~==Gallery==~~
	~~<gallery>~~
	~~File:Novichok_A262_(Mirzayanov_2009).svg\|Chemical structure of A-262~~
	~~</gallery>~~

	[[Category:Chemical warfare agents]]		[[Category:Chemical warfare agents]]
	~~[[Category:Organophosphates]]~~
	[[Category:Nerve agents]]		[[Category:Nerve agents]]

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2025-02-11T21:15:37Z

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{{Short description|A chemical compound belonging to the Novichok family of nerve agents}}
{{Use dmy dates|date=October 2023}}

'''A-262''' is a chemical compound that belongs to the [[Novichok agent|Novichok]] family of nerve agents. These agents were developed in the Soviet Union during the Cold War and are known for their high toxicity and potential use in chemical warfare.

==Chemical Structure==
A-262 is an organophosphate compound, which means it contains phosphorus as part of its chemical structure. The specific structure of A-262 includes a phosphorus atom bonded to various organic groups, which contribute to its potency as a nerve agent.

==Mechanism of Action==
Like other nerve agents, A-262 functions by inhibiting the enzyme [[acetylcholinesterase]]. This enzyme is responsible for breaking down the neurotransmitter [[acetylcholine]] in the synaptic cleft. Inhibition of acetylcholinesterase leads to an accumulation of acetylcholine, resulting in continuous stimulation of muscles, glands, and central nervous system structures.

==Toxicity==
A-262 is highly toxic, with effects similar to other nerve agents such as [[sarin]] and [[VX (nerve agent)|VX]]. Exposure to even small amounts can be fatal, and symptoms of poisoning include muscle twitching, respiratory distress, convulsions, and loss of consciousness.

==History and Development==
The development of A-262 and other Novichok agents was part of a secret Soviet program aimed at creating more potent chemical weapons that could evade detection by international monitoring systems. The existence of these agents was revealed by [[Vil Mirzayanov]], a former Soviet scientist, in the 1990s.

==Detection and Protection==
Detection of A-262 and other Novichok agents requires specialized equipment capable of identifying trace amounts of these compounds. Protective measures include the use of [[personal protective equipment]] (PPE) such as gas masks and protective suits, as well as the administration of antidotes like [[atropine]] and [[pralidoxime]].

==Related pages==
* [[Novichok agent]]
* [[Chemical warfare]]
* [[Organophosphate poisoning]]
* [[Acetylcholinesterase inhibitor]]

==Gallery==
<gallery>
File:Novichok_A262_(Mirzayanov_2009).svg|Chemical structure of A-262
</gallery>

[[Category:Chemical warfare agents]]
[[Category:Organophosphates]]
[[Category:Nerve agents]]

A-262 - Revision history

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