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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Inventory

EC number:
228-601-5
EC name:
Phosphinic acid
CAS number:
6303-21-5
CAS number:
6303-21-5
Synonyms
Names:
Hypophosphorous acid
Phosphinic acid
Identifier:
IUPAC name
Phosphinic acid
Identifier:
IUPAC name
hydroxy-oxophosphanium
Identifier:
other: SMILES notation
O[PH+]=O
phosphinic acid

Molecular and structural information

Molecular formula:
H3O2P
Molecular weight:
63.98
SMILES notation:
OP=O
InChl:
InChI=1/HO2P/c1-3-2/h(H,1,2)
Structural formula:
Chemical structure

Related substances