Potassium dithionite

Potassium dithionite

Identifiers
CAS Number	14293-73-3 Y
3D model (JSmol)	Interactive image
ChemSpider	55625 Y
PubChem CID	61726
InChI InChI=1S/2K.H2O4S2/c;;1-5(2)6(3)4/h;;(H,1,2)(H,3,4)/q2*+1;/p-2 Y Key: HEZHYQDYRPUXNJ-UHFFFAOYSA-L Y InChI=1/2K.H2O4S2/c;;1-5(2)6(3)4/h;;(H,1,2)(H,3,4)/q2*+1;/p-2 Key: HEZHYQDYRPUXNJ-NUQVWONBAU
SMILES [O-]S(=O)S(=O)[O-].[K+].[K+]
Properties
Chemical formula	K2O4S2
Molar mass	206.32 g/mol
Appearance	light yellow powder
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y  (what is YN ?)
Infobox references

Potassium dithionite or potassium hydrosulfite is a potassium salt of dithionous acid.

The compound has UN number UN 1929. It is an inhibitor of the polyphenol oxidase.