Skip to Content
Merck
All Photos(1)

Documents

71530

Sigma-Aldrich

Sodium hydroxymethanesulfinate dihydrate

≥98.0% (RT)

Synonym(s):

Rongalite, Sodium formaldehydesulfoxylate

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
CH3NaO3S · 2H2O
CAS Number:
Molecular Weight:
154.12
EC Number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Assay

≥98.0% (RT)

form

powder

pH

9.5-10.5

solubility

H2O: 50 mg/mL, clear, colorless

SMILES string

OCS(O[Na])=O.[H]O[H].[H]O[H]

InChI

1S/CH3O3S.Na.2H2O/c2-1-5(3)4;;;/h1H2,(H,3,4);;2*1H2/q-1;+1;;

InChI key

VJWVWUHJLZEHOU-UHFFFAOYSA-N

Related Categories

Application

Sodium hydroxymethanesulfinate dihydrate is a versatile reagent that can be used for a wide range of organic transformations such as:
  • A SO2-2anion source for the preparation of sulfones and sultines.
  • Debromination of vicinal dibromoalkanes.
  • Reductive dehalogenation of aldehydes and ketones.

Pictograms

Health hazard

Signal Word

Warning

Hazard Statements

Hazard Classifications

Muta. 2 - Repr. 2

Supplementary Hazards

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Rongalite: a useful green reagent in organic synthesis.
Kotha S, et al.
Chemical Reviews, 112(3), 1650-1680 (2011)
S V Makarov et al.
Archives of biochemistry and biophysics, 367(2), 289-296 (1999-07-09)
Sodium hydroxymethanesulfinate, (HOCH2SO2Na, HMS) is relatively stable in aqueous alkaline environments, but rapidly decomposes in acidic medium to give a variety of products that include sulfur dioxide. A detailed kinetic and mechanistic study of the decomposition of HMS in slightly

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service