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Metals, alloys and elements

Oganesson

Also known as oganesson atom, ununoctium, Uuo ununoctium

CAS 54144-19-3Formula OgMolar mass 294.00 g/mol
1 supplier listed
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Element with atomic number and standard atomic weight

Key facts

What buyers check first

All properties
CAS number
54144-19-3
Formula
Og
Molar mass
294.00 g/mol
Category
Metals, alloys and elements

What is Oganesson?

Plain description, key identifiers and synonyms

Oganesson atom is a p-block element atom with a symbol Og and atomic number 118. It is a noble gas atom and a p-block element atom.

Oganesson is a chemical element with symbol Og and atomic number 118.

Identifiers

Registry numbers, names and line notations, tap to copy

CAS number
54144-19-3 CAS number cross-checked
Molecular formula
Og
InChIKey
GOANEQIZDYDFCO-UHFFFAOYSA-N
InChI
InChI=1S/Og
SMILES (canonical and isomeric)
[Og]

Synonyms

  • oganesson atom
  • ununoctium
  • Uuo ununoctium
  • Og oganesson
  • element 118
  • eka-emanation
  • eka-radon
  • Atomic Oganesson
  • Element-Og
  • Element:Og
  • Oganesson element
  • Element Oganesson
  • Element:Oganesson
  • Og (element)
  • Oganesson (atomic)
  • Oganesson (element)
  • 118Og

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
294.00 g/molcalc.
Exact mass
294.2139 Dacalc.
LogP (octanol/water)
0calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
0calc.
Heavy atoms
1calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.

Calculated for screening. Confirm critical figures with the supplier.

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.

Oganesson suppliers

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Where suppliers are based

1 supplier in 1 country

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Oganesson price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

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

An indicative HS code has not been assigned to this substance yet, so trade statistics are not linked. Browse world trade statistics by HS code in our trade hub.

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Frequently asked questions

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

What is Oganesson?

Oganesson atom is a p-block element atom with a symbol Og and atomic number 118. It is a noble gas atom and a p-block element atom.

What is the CAS number of Oganesson?

The CAS registry number of Oganesson is 54144-19-3.

What is the molecular formula and weight of Oganesson?

The molecular formula of Oganesson is Og and its molar mass is 294.00 g/mol.

Is Oganesson hazardous?

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

Where can I buy Oganesson?

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

What is the price of Oganesson?

Suppliers quote Oganesson 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 Oganesson

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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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