As2O3
197.841 g/mol
Industrial ChemicalDanger
Arsenic oxide (As2O3)
CAS1327-53-3EC215-481-4
Category
Industrial Chemical
Compound Class
Inorganic Salt
Primary Use
Glass manufacturing and wood preservatives
Arsenic oxide (As2O3) is an industrial chemical used primarily in glass manufacturing and as a wood preservative. It also finds application in semiconductor manufacturing, paint pigments, and mining.
Glass manufacturingWood preservativesSemiconductor manufacturing
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
Restricted or banned substances
Substances on this list are banned or restricted under the named regulation. This page is a compliance reference — verify your obligations under applicable law.
CAS 1327-53-3
Related Compounds
ReferenceSame Category
Tungsten hexachloride
CAS13283-01-7
Tungsten coatings and vapor deposition
ReferenceSame Category
2-PENTENENITRILE
CAS13284-42-9
Chemical intermediate in organic synthesis
ReferenceSame Category
Phenol, 4,4'-sulfonylbis[2,6-dimethyl-
CAS13288-70-5
polymer and resin intermediate
ReferenceSame Category
Disodium tetraborate
CAS1330-43-4
Glass manufacturing and cleaning compounds
Safety Reference
Danger
H300Fatal if swallowed
H314Causes severe skin burns and eye damage
H350May cause cancer
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
H315Causes skin irritation
H318Causes serious eye damage
H341Suspected of causing genetic defects
H360May damage fertility or the unborn child
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure
H331Toxic if inhaled
Customs Tariff Classification
The international HS code for Arsenic oxide (As2O3) (CAS 1327-53-3) is 2811.29.
HS code (international, 6-digit)
2811.29
EU CN code (8-digit)
2811 29 10
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
bis(arsenic(3+));tris(oxygen(2-))
InChIKey
QTLQKAJBUDWPIB-UHFFFAOYSA-N
SMILES
[O-2].[O-2].[O-2].[As+3].[As+3]
Synonyms (59)
- ARSENIC ALB
- Acide arsenieux
- Anhydride arsenieux
- Ars Alb
- Ars Alb 30C
- Arseneous anhydride
- Arseneous oxide
- Arseni trioxydum
- Arsenic (III) oxide
- Arsenic Oxide (As4O6)
- Arsenic blanc
- Arsenic oxide (As2O3)
- Arsenic sesquioxide
- Arsenic(III) trioxide
- Arsenicum Album
- Arsenicum Album 200C
- Arsenicum Album 200ck
- Arsenicum Album 30C
- Arsenicum Album Kit Refill
- Arsenicum Oxydatum
- Arsenicum album 30
- Arsenicum album 30X
- Arsenicum album 3C
- Arsenicum album 6C
- Arsenicum album 7104
- Arsenigen saure
- Arsenious Acid Anhydride
- Arsenious acid
- Arsenious oxide
- Arsenious trioxide
- Arsenolite
- Arsenous Anhydride
- Arsenous acid anhydride
- Arsenous oxide
- Arsenous oxide anhydride
- Arsenox
- Arsentrioxide
- Arsodent
- Claudelite
- Claudetite
- Crude arsenic
- Flu Nausea
- NHS Flu Nausea
- Oxyde Arsenieux
- Rxhomeo Homeopathic Combo 24
- Trisenox
- Trixenox
- Trixonex
- White arsenic
- arsenic trioxide
- arsenic(3+);oxygen(2-)
- bicyclo(1.1.1)diarsoxane
- tetra-arsenic hexaoxide
- tetra-arsenic oxide