Description
Methanesulfinic acid sodium salt is a sodium organosulfinate reagent supplied at a minimum purity of 95 %, with CAS number 20277-69-4 and the empirical formula CH₃O₂SNa. The molar mass is 102,09 g/mol, enabling precise weighing for sulfonylation and radical-based synthetic methods. This variant is The compact sulfinate anion is widely used to install methylsulfonyl or related sulfur motifs in pharmaceutical and fine-chemical intermediates. Defined assay and molecular-weight values help maintain reproducible stoichiometry across campaigns. Product from manufacturer Carl ROTH supports chemical and biochemical research environments that require a reliable methanesulfinate source. Typical applications include preparation of sulfones, cross-coupling partners, and other sulfur-containing building blocks under controlled laboratory conditions. Integrate the CAS identity and formula into inventory records, and follow institutional procedures for cold-chain-sensitive organosulfur salts during routine handling and dispensing.
This article is part of Acids, in Acids & bases.
Key features
Compliance & Safety Information
WarningHazard Statements (H-Phrases)
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about Methanesulfinic acid sodium salt, min. 95 %, 250 g
What is this article?
Methanesulfinic acid sodium salt, min. 95 %, 250 g is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Acids, inside Acids & bases, in Lab chemicals.
An acid on this shelf is the substance itself, concentrated or as a stated solution: hydrochloric, sulfuric, nitric, acetic and the rest. Concentration, purity and the trace metals decide the use. A concentrated acid and a volumetric solution of the same name are different products, and both burn.
An acid donates a proton. A base accepts one. In the bottle, the practical differences are the concentration, the purity and the anion or cation that comes along. Concentrated mineral acids are a different article from a dilute volumetric solution. The water in the acid, and the trace metals, decide whether it can be used for analysis. Check the substance on PubChem and the classification on ECHA CLP. Transport is the UNECE dangerous-goods framework. The legal texts are the CLP Regulation and REACH.
Which category should I open next?
The category is Acids & bases. The sub-category is Acids. The catalogue is Lab chemicals.
Shelves beside this one are Bases & alkalis.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

