Novichok nerve agent
E165586
Novichok nerve agent is a highly toxic class of Soviet-developed chemical weapons designed to be more lethal and harder to detect than earlier nerve agents.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Novichok nerve agent canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1450040 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Novichok nerve agent Context triple: [Alexei Navalny, poisoningSubstance, Novichok nerve agent]
-
A.
VX gas
VX gas is an extremely toxic, persistent nerve agent developed for chemical warfare, known for its rapid disruption of the nervous system even at very low exposure levels.
-
B.
Zyklon B
Zyklon B was a cyanide-based pesticide infamously used by Nazi Germany as a chemical agent for mass murder in extermination camps during the Holocaust.
-
C.
T-Stoff (high-test hydrogen peroxide)
T-Stoff (high-test hydrogen peroxide) was a highly concentrated, volatile oxidizer used as rocket propellant in German World War II aircraft and missiles, notably the Messerschmitt Me 163.
-
D.
Agent Orange
Agent Orange is a powerful herbicidal chemical mixture used by the U.S. military as a defoliant, notorious for causing severe health problems and environmental damage.
-
E.
Dalstroy
Dalstroy was a Soviet state organization under the NKVD that managed forced labor camps and large-scale mining and construction projects in the Kolyma region.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Novichok nerve agent Target entity description: Novichok nerve agent is a highly toxic class of Soviet-developed chemical weapons designed to be more lethal and harder to detect than earlier nerve agents.
-
A.
VX gas
VX gas is an extremely toxic, persistent nerve agent developed for chemical warfare, known for its rapid disruption of the nervous system even at very low exposure levels.
-
B.
Zyklon B
Zyklon B was a cyanide-based pesticide infamously used by Nazi Germany as a chemical agent for mass murder in extermination camps during the Holocaust.
-
C.
T-Stoff (high-test hydrogen peroxide)
T-Stoff (high-test hydrogen peroxide) was a highly concentrated, volatile oxidizer used as rocket propellant in German World War II aircraft and missiles, notably the Messerschmitt Me 163.
-
D.
Agent Orange
Agent Orange is a powerful herbicidal chemical mixture used by the U.S. military as a defoliant, notorious for causing severe health problems and environmental damage.
-
E.
Dalstroy
Dalstroy was a Soviet state organization under the NKVD that managed forced labor camps and large-scale mining and construction projects in the Kolyma region.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
chemical weapon
ⓘ
nerve agent ⓘ organophosphate compound ⓘ |
| associatedCountry | Russia ⓘ |
| chemicalWarfareAgentType | nerve agent ⓘ |
| countryOfOrigin | Soviet Union ⓘ |
| deliveryForm |
binary chemical weapon
ⓘ
unitary chemical weapon ⓘ |
| designedToBe |
harder to detect than earlier nerve agents
ⓘ
harder to protect against ⓘ more lethal than earlier nerve agents ⓘ |
| detectionDifficulty | difficult to detect with standard chemical weapons sensors ⓘ |
| developedBy |
Soviet Union
ⓘ
Soviet armed forces ⓘ
surface form:
Soviet military
|
| developedInPeriod |
1970s
ⓘ
1980s ⓘ |
| developedUnderProgram | Foliant program ⓘ |
| effectOnBody | disrupts nervous system signaling ⓘ |
| exposureRoute |
dermal contact
ⓘ
ingestion ⓘ inhalation ⓘ |
| firstPublicRevelationsBy | Vil Mirzayanov ⓘ |
| firstPublicRevelationsPeriod | 1990s ⓘ |
| legalStatus | prohibited chemical weapon ⓘ |
| lethality | potentially fatal within minutes to hours without treatment ⓘ |
| listedIn |
Annex on Chemicals
ⓘ
surface form:
CWC Schedule 1 chemicals
|
| mechanismDetail | prevents breakdown of acetylcholine at synapses ⓘ |
| modeOfAction | acetylcholinesterase inhibitor ⓘ |
| persistence | can be relatively persistent in environment ⓘ |
| regulatedBy | Chemical Weapons Convention ⓘ |
| resultOfExposure | cholinergic crisis ⓘ |
| safetyRisk | extreme hazard at very low doses ⓘ |
| storageForm | precursor chemicals mixed shortly before use ⓘ |
| symptom |
convulsions
ⓘ
loss of consciousness ⓘ miosis ⓘ muscle spasms ⓘ respiratory failure ⓘ |
| target |
central nervous system
ⓘ
peripheral nervous system ⓘ |
| toxicity | highly toxic ⓘ |
| treatment |
atropine
ⓘ
oxime therapy ⓘ supportive intensive care ⓘ |
| UNClassification | Schedule 1 chemical weapon ⓘ |
| usedInIncident |
2018 Amesbury poisoning
ⓘ
The Salisbury Poisonings ⓘ
surface form:
2018 Salisbury poisoning
2020 Alexei Navalny poisoning ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Novichok nerve agent Description of subject: Novichok nerve agent is a highly toxic class of Soviet-developed chemical weapons designed to be more lethal and harder to detect than earlier nerve agents.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.