5402-20-0 Usage
General Description
4-Pyridinesulfonic acid is a heterocyclic compound containing a pyridine ring with a sulfonic acid group attached. It is commonly used as a reagent in organic synthesis and as a building block for the preparation of various pharmaceuticals and agrochemicals. This chemical is also used in the production of dyes, pigments, and polymers due to its strong acidity and nucleophilicity. It can act as a catalyst or a ligand in various chemical reactions and is also employed in the synthesis of coordination complexes for industrial applications. Additionally, 4-pyridinesulfonic acid is utilized in analytical chemistry as a standard for the determination of trace elements in various matrices.
Check Digit Verification of cas no
The CAS Registry Mumber 5402-20-0 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 0 respectively.
Calculate Digit Verification of CAS Registry Number 5402-20:
(6*5)+(5*4)+(4*0)+(3*2)+(2*2)+(1*0)=60
60 % 10 = 0
So 5402-20-0 is a valid CAS Registry Number.
InChI:InChI:1S/C5H5NO3S/c7-10(8,9)5-1-3-6-4-2-5/h1-4H,(H,7,8,9)
