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Details

Stereochemistry ACHIRAL
Molecular Formula Ca.O5S2
Molecular Weight 184.205
Optical Activity NONE
Defined Stereocenters 0 / 0
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of CALCIUM METABISULFITE

SMILES

[Ca++].[O-]S(=O)S([O-])(=O)=O

InChI

InChIKey=NTOZOESJXIBDLD-UHFFFAOYSA-L
InChI=1S/Ca.H2O5S2/c;1-6(2)7(3,4)5/h;(H,1,2)(H,3,4,5)/q+2;/p-2

HIDE SMILES / InChI
Diammonium sulfite monohydrate (Ammonium sulfite monohydrate) has a wide use of applications, such as hair straightening or waving agents, as an ingredient in carmel food coloring, as well as an reducing agent in photography. Other applications include lubricants for cold metal working and blast furnace linings. It is considered safe as used in cosmetic formulations.

Approval Year

PubMed

PubMed

TitleDatePubMed
Effects of pH on the formation of 4(5)-Methylimidazole in glucose/ammonium sulfate and glucose/ammonium sulfite caramel model reactions.
2015-10
Novel homogeneous catalyst system for the oxidation of concentrated ammonium sulfite.
2006-02-28
Final report on the safety assessment of sodium sulfite, potassium sulfite, ammonium sulfite, sodium bisulfite, ammonium bisulfite, sodium metabisulfite and potassium metabisulfite.
2003
Patents

Patents

Name Type Language
DISULFUROUS ACID, CALCIUM SALT (1:1)
Preferred Name English
CALCIUM METABISULFITE
Systematic Name English
Code System Code Type Description
FDA UNII
Z4766YL50A
Created by admin on Mon Mar 31 22:56:49 GMT 2025 , Edited by admin on Mon Mar 31 22:56:49 GMT 2025
PRIMARY
PUBCHEM
24827056
Created by admin on Mon Mar 31 22:56:49 GMT 2025 , Edited by admin on Mon Mar 31 22:56:49 GMT 2025
PRIMARY
CAS
49663-88-9
Created by admin on Mon Mar 31 22:56:49 GMT 2025 , Edited by admin on Mon Mar 31 22:56:49 GMT 2025
PRIMARY