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Pyridine-3-sulfonic acid 1-oxide, also known as 3-sulfooxypyridine, is a chemical compound with the molecular formula C5H5NO3S. It is a derivative of pyridine, an aromatic heterocyclic compound, where a sulfonic acid group (-SO3H) is attached to the 3rd carbon position, and an oxide group (-O) is present at the 1st position. pyridine-3-sulfonic acid 1-oxide is a white crystalline solid and is soluble in water. It is used as an intermediate in the synthesis of various pharmaceuticals, agrochemicals, and other organic compounds. Pyridine-3-sulfonic acid 1-oxide is also known for its potential applications in the development of new materials and as a reagent in organic synthesis.

5402-21-1

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5402-21-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5402-21-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,4,0 and 2 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 5402-21:
(6*5)+(5*4)+(4*0)+(3*2)+(2*2)+(1*1)=61
61 % 10 = 1
So 5402-21-1 is a valid CAS Registry Number.

5402-21-1SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name 1-oxidopyridin-1-ium-3-sulfonic acid

1.2 Other means of identification

Product number -
Other names 3-pyridinesulfonic acid,1-oxide

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:5402-21-1 SDS

5402-21-1Downstream Products

5402-21-1Relevant academic research and scientific papers

Production of pyridine-3-sulfonic acid

-

, (2008/06/13)

A method for the production of heavy metal-free pyridine -3-sulfonic acid by oxidation of 3-chloro-pyridine to 3-chloro-pyridine-N-oxide, substitution of the chlorine through a sulfonic acid group, and subsequent reduction to pyridine-3-sulfonic acid. The method can be carried out using raw 3-chloropyridine-N-oxide and direct further reaction of the pyridine-3-sulfonic acid-N-oxide in the presence of Raney nickel in an alkaline solution.

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