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Heterocyclic building blocks

Obidoxime

Also known as Obidoxim, Piperidinium, 1,1'-(oxybis(methylene))bis(4-((hydroxyimino)methyl)-, 1,1'-(Oxydimethylene)bis(4-formylpyridinium) dioxime

CAS 7683-36-5Formula C14H16N4O3+2Molar mass 288.31 g/mol
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Obidoxime chemical structure, C14H16N4O3+2, CAS 7683-36-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
7683-36-5
Formula
C14H16N4O3+2
Molar mass
288.31 g/mol
HS code
293339
Category
Heterocyclic building blocks

What is Obidoxime?

Plain description, key identifiers and synonyms

Obidoxime is an organic molecular entity. It has a role as a cholinesterase reactivator.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(NE)-N-[[1-[[4-[(E)-hydroxyiminomethyl]pyridin-1-ium-1-yl]methoxymethyl]pyridin-1-ium-4-yl]methylidene]hydroxylamine
CAS number
7683-36-5 CAS number cross-checked
Molecular formula
C14H16N4O3+2
UNII
N6KNE1QA9O
InChIKey
HIGRLDNHDGYWQJ-UHFFFAOYSA-P
InChI
InChI=1S/C14H14N4O3/c19-15-9-13-1-5-17(6-2-13)11-21-12-18-7-3-14(4-8-18)10-16-20/h1-10H,11-12H2/p+2
Canonical SMILES
ON=Cc1cc[n+](COC[n+]2ccc(C=NO)cc2)cc1
Isomeric SMILES
C1=C[N+](=CC=C1/C=N/O)COC[N+]2=CC=C(C=C2)/C=N/O

Synonyms

  • Obidoxim
  • Piperidinium, 1,1'-(oxybis(methylene))bis(4-((hydroxyimino)methyl)-
  • 1,1'-(Oxydimethylene)bis(4-formylpyridinium) dioxime
  • Pyridinium, 1,1'-(oxybis(methylene))bis(4-(hydroxyimino)methyl)-
  • Piperidinium, 1,1'-(Oxybis(Methylene))Bis(4-(Hydroxyimino)Methyl)-
  • 1,1'-(Oxydimethylene)bis(4-formylpyridinium)dioxime
  • Obidoximum
  • Obidoxim kation
  • Obidoxime tablets
  • (NE)-N-[[1-[[4-[(E)-hydroxyiminomethyl]pyridin-1-ium-1-yl]methoxymethyl]pyridin-1-ium-4-yl]methylidene]hydroxylamine
  • 1,1'-(oxydimethanediyl)bis{4-[(E)-(hydroxyimino)methyl]pyridinium}
  • Bis-(4-hydroxyiminomethyl-pyridinium-1-methyl)ether-kation
  • 4,4'-Bis-(hydroxyiminomethyl)-1,1'-oxydimethylen-dipyridinium-kation
  • Pyridinium, 1,1'-(oxydimethylene)bis(4-formyl-, dioxime
  • [Oxybis(methylenepyridin-1-yl-4-ylidenemethanylylidene)]bis(oxoammonium)

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
288.31 g/molcalc.
Exact mass
288.1211 Dacalc.
LogP (octanol/water)
0.51calc.
Topological polar surface area
82.17 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
6calc.
Heavy atoms
21calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.14calc.
Formal charge
2calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, c1cc[n+](COC[n+]2ccccc2)cc1

c1cc[n+](COC[n+]2ccccc2)cc1

2 rings, 15 atoms.

69 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Obidoxime suppliers

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Where suppliers are based

1 supplier in 1 country

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Obidoxime price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Roles

  • cholinesterase reactivator
  • enzyme reactivator

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Obidoxime is traded under.

HS 2933.39Indicative HS code

Heterocyclic compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure…

World exports in 2024
$9.16B
−17.9% vs 2023, imports $10.6B
2019 to 2024
Top exporters
  1. China21.5%
  2. India * partner reported12.3%
  3. Ireland11.6%
Top importers
  1. Germany14.2%
  2. United States12.8%
  3. Brazil10.1%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Obidoxime is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Obidoxime, based on the data on this page

What is Obidoxime?

Obidoxime is an organic molecular entity. It has a role as a cholinesterase reactivator.

What is the CAS number of Obidoxime?

The CAS registry number of Obidoxime is 7683-36-5.

What is the molecular formula and weight of Obidoxime?

The molecular formula of Obidoxime is C14H16N4O3+2 and its molar mass is 288.31 g/mol.

What is Obidoxime used for?

Known uses and roles of Obidoxime include building blocks in research and laboratory, screening compounds in research and laboratory, cholinesterase reactivator and enzyme reactivator.

Is Obidoxime hazardous?

No GHS hazard classification for Obidoxime is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Obidoxime?

Obidoxime is usually classified under HS code 293339 (Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Obidoxime?

CompoundList lists 1 supplier of Obidoxime in Hong Kong. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Obidoxime?

Suppliers quote Obidoxime on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Obidoxime

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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