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Antimony dioxide

CAS 12786-74-2Formula O4Sb2Molar mass 307.52 g/molEC 235-825-7
Antimony dioxide chemical structure, O4Sb2, CAS 12786-74-2
2D chemical structure

Key facts

What buyers check first

CAS number
12786-74-2
Formula
O4Sb2
Molar mass
307.52 g/mol
EC number
235-825-7
HS code
282580
Category
Oxides and peroxides

What is Antimony dioxide?

Plain description, key identifiers and synonyms

Antimony dioxide is a chemical substance with the molecular formula O4Sb2 and a molar mass of 307.52 g/mol. Its CAS registry number is 12786-74-2. The IUPAC name is antimony(3+), antimony(5+), tetrakis(oxygen(2-)).

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
antimony(3+), antimony(5+), tetrakis(oxygen(2-))
CAS number
12786-74-2
EC number
235-825-7
Molecular formula
O4Sb2
InChIKey
QEZIKGQWAWNWIR-UHFFFAOYSA-N
InChI
InChI=1S/4O.2Sb/q4*-2;+3;+5
SMILES (canonical and isomeric)
[O-2].[O-2].[O-2].[O-2].[Sb+3].[Sb+5]

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
307.52 g/molcalc.
Exact mass
305.7873 Dacalc.
LogP (octanol/water)
-1.24calc.
Topological polar surface area
114 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
0calc.
Heavy atoms
6calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
6calc.

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.

Antimony dioxide suppliers

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Antimony dioxide 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

Global trade

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

HS 2825.80Indicative HS code

Antimony oxides

World exports in 2024
$926M
+44.7% vs 2023, imports $815M
2019 to 2024
Top exporters
  1. China49.1%
  2. Belgium16.0%
  3. France * partner reported11.8%
Top importers
  1. United States27.4%
  2. Italy8.1%
  3. India * partner reported7.4%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Antimony dioxide, based on the data on this page

What is Antimony dioxide?

Antimony dioxide is a chemical substance with the molecular formula O4Sb2 and a molar mass of 307.52 g/mol. Its CAS registry number is 12786-74-2. The IUPAC name is antimony(3+), antimony(5+), tetrakis(oxygen(2-)).

What is the CAS number of Antimony dioxide?

The CAS registry number of Antimony dioxide is 12786-74-2.

What is the molecular formula and weight of Antimony dioxide?

The molecular formula of Antimony dioxide is O4Sb2 and its molar mass is 307.52 g/mol.

Is Antimony dioxide hazardous?

No GHS hazard classification for Antimony dioxide 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 Antimony dioxide?

Antimony dioxide is usually classified under HS code 282580 (Antimony oxides). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Antimony dioxide?

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What is the price of Antimony dioxide?

Suppliers quote Antimony dioxide 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 Antimony dioxide

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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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