DITHIONITE

Possibly Marketed Outside US

First approved in 1984

Details

Stereochemistry	ACHIRAL
Molecular Formula	O4S2
Molecular Weight	128.128
Optical Activity	NONE
Defined Stereocenters	0 / 0
E/Z Centers	0
Charge	-2

SHOW SMILES / InChI

Structure Search

SMILES

[O-]S(=O)S([O-])=O

InChI

InChIKey=GRWZHXKQBITJKP-UHFFFAOYSA-L

InChI=1S/H2O4S2/c1-5(2)6(3)4/h(H,1,2)(H,3,4)/p-2

HIDE SMILES / InChI

Molecular Formula	H2O4S2
Molecular Weight	130.143
Charge	0
Count

Stereochemistry	ACHIRAL
Additional Stereochemistry	No
Defined Stereocenters	0 / 0
E/Z Centers	0
Optical Activity	NONE

Description
Sources: https://www.ncbi.nlm.nih.gov/pubmed/28157612

Sodium dithionite (or sodium hydrosulfite), an inexpensive and safe reducing agent, which for example enables the reduction of aromatic nitro. This compound is also used to reduce Cr(VI) to Cr(III) in chromite ore processing residue (COPR) wastes containing high available Fe.

Approval Year

PubMed

Title	Date	PubMed
Remediation of hexavalent chromium contamination in chromite ore processing residue by sodium dithionite and sodium phosphate addition and its mechanism.	2017-05-01	28157612

Patents

Substance Class	Chemical Created by `admin` on `Mon Mar 31 18:46:15 GMT 2025` Edited by `admin` on `Mon Mar 31 18:46:15 GMT 2025`
Record UNII	17Q56Y5LKH
Record Status	`Validated (UNII)`
Record Version

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Name

Type

Language

DITHIONITE

Systematic Name

English

DITHIONITE (S2O42-)

Preferred Name

English

DITHIONOUS ACID, ION(2-)

Common Name

English

DITHIONITE DIANION

Common Name

English

Code System Code Type Description

EPA CompTox

DTXSID40163986