Calcium bisulfite

CAS Registry Number®

13780-03-5

CAS Name

Calcium bisulfite

Molecular Formula

Ca.2H2O3S

Molecular Mass

204.24

Cite this Page

Calcium bisulfite.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=13780-03-5 (retrieved 2025-03-28) (CAS RN: 13780-03-5).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Other Names and Identifiers

InChI

InChI=1S/Ca.H2O3S/c;1-4(2)3/h;(H2,1,2,3)

InChIKey

InChIKey=SGIDZKQKQMFQNU-UHFFFAOYSA-N

SMILES

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

Canonical SMILES

[Ca].O=S(O)O

Other Names for this Substance

  • Sulfurous acid, calcium salt (2:1)
  • Calcium sulfite (Ca(HSO3)2)
  • Calcium bisulfite
  • Calcium hydrogen sulfite
  • Calcium di(hydrogen sulfite)

Deleted or Replaced CAS Registry Numbers

13846-18-9

CAS INSIGHTSTM
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