Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Reference substances

Reference substances

Currently viewing:
IUPAC name:
Cerium dioxide

Inventory

EC number:
215-150-4
EC name:
Cerium dioxide
CAS number:
1306-38-3
CAS number:
1306-38-3
Synonyms
Names:
Cerium (IV) dioxide cerium, dioxo- Dioxocerium
Identifier:
IUPAC name
Cerium (IV) dioxide
Identifier:
other: InChl
InChI=1/Ce.2O/q+4;2*-2
Identifier:
other: SMILES notation
[Ce+4].[O-2].[O-2]

Molecular and structural information

Molecular formula:
CeO2
Molecular weight:
172.115
SMILES notation:
CeO2
InChl:
1/Ce.2O/rCeO2/c2-1-3
Structural formula:
Chemical structure

Related substances

open allclose all
Identifier:
EC number
Identity:
234-599-7
Identifier:
CAS number
Identity:
12014-56-1
Identifier:
IUPAC name
Identity:
Cerium tetrahydroxide