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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:
IUPAC name:
ammonium sodium bis(4-amino-3-nitrobenzene-1-sulfonate)

Inventory

CAS number:
82324-60-5
Synonyms
Names:
ONPSA, mixed ammonium / sodium salt
o-Nitroaniline-p-sulfonic acid, ammonium / sodium salt
Reaction mass of ammonium 4-amino-3-nitrobenzenesulfonate and sodium 4-amino-3-nitrobenzenesulfonate

Molecular and structural information

Molecular formula:
C6H5N2O5S.H4N
C6H5N2O5S.Na
Molecular weight:
> 235.22 - < 240.17
Structural formula:
Chemical structure

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