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Sodium metabisulfite

CAT: 0862-GK1356-500gSize: 500 gDry Ice: NoHazardous: No
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CAT#:0862-GK1356-500gSize:500 g
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CAS Number
7681-57-4
EC Number
231-673-0
MDL Number
MFCD00167602
HS Code
28321000
Purity
95.00%
Molecular Formula
Na2O5S2
Molecular Weight
190.1
Storage Conditions
+20°C
Hazardous Class
Not hazardous

Chemical Information

Sodium Pyrosulfite

Sodium disulfite is an inorganic sodium salt composed of sodium and disulfite ions in a 2:1 ratio. It has a role as a food antioxidant. It contains a disulfite.

CAS Number7681-57-4
PubChem CID656671
Molecular FormulaNa2O5S2
Molecular Weight190.11
Topological Polar Surface Area125
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count6
Rotatable Bond Count0
Heavy Atom Count9
Formal Charge0
Complexity136
SMILES
[O-]S(=O)S(=O)(=O)[O-].[Na+].[Na+]
InChI
InChI=1S/2Na.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
InChIKey
HRZFUMHJMZEROT-UHFFFAOYSA-L
Chemical Structure
2D Structure
2D structure of Sodium Pyrosulfite
CAS: 7681-57-4
CID: 656671
Formula: Na2O5S2
MW: 190.11
Interactive 3D Structure
Loading 3D structure...
View on PubChemRaw 3D data
Computed Properties
PropertyValue
Molecular Weight190.11
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count6
Rotatable Bond Count0
Exact Mass189.89825401
Monoisotopic Mass189.89825401
Topological Polar Surface Area125 Ų
Heavy Atom Count9
Formal Charge0
Complexity136
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently-Bonded Unit Count3
Compound Is CanonicalizedYes

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