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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

IUPAC name:
[(²H)oxy](²H)

Inventory

EC number:
232-148-9
EC name:
Deuterium oxide
CAS number:
7789-20-0
CAS number:
7789-20-0
Synonyms
Names:
Dideuterium oxide
Heavy water
Identifier:
EC number
232-148-9
Identifier:
IUPAC name
(2H2)water
Identifier:
other: InChl
InChI=1S/H2O/h1H2/i/hD2
Identifier:
other: InChl
XLYOFNOQVPJJNP-ZSJDYOACSA-N
Deuterium oxide

Molecular and structural information

Molecular formula:
D2O
Molecular weight:
ca. 20.027
SMILES notation:
[2H]O[2H]
InChl:
1S/H2O/h1H2/i/hD2
Structural formula:
Chemical structure

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