84864-63-1 Usage
General Description
1H-pyrrole-2-sulphonic acid is an organic compound with the chemical formula C4H5NO3S. It is a derivative of pyrrole, containing a sulfonic acid functional group attached to the 2-position of the pyrrole ring. 1H-pyrrole-2-sulphonic acid is commonly used as a building block in the synthesis of various pharmaceuticals, dyes, and organic chemicals. It is also used in the production of polymers and as a reagent in organic synthesis. 1H-pyrrole-2-sulphonic acid is soluble in water and some polar organic solvents, and it is typically handled as a solid or as a concentrated solution. It is important to handle this compound with care, as it can cause irritation to the skin, eyes, and respiratory system. Overall, 1H-pyrrole-2-sulphonic acid plays a crucial role in the manufacturing of a wide range of products and materials.
Check Digit Verification of cas no
The CAS Registry Mumber 84864-63-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,8,6 and 4 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 84864-63:
(7*8)+(6*4)+(5*8)+(4*6)+(3*4)+(2*6)+(1*3)=171
171 % 10 = 1
So 84864-63-1 is a valid CAS Registry Number.
InChI:InChI=1/C4H5NO3S/c6-9(7,8)4-2-1-3-5-4/h1-3,5H,(H,6,7,8)
84864-63-1Relevant articles and documents
The Triphenylphosphine-Sulphur Trioxide Complex: Confirmation of Structure
Galpin, Ian J.,Kenner, George W.,Marston, Andrew,Mills, Owen S.
, p. 789 - 790 (1981)
The structure of the triphenylphosphine-sulphur trioxide complex has been established by X-ray crystallography which shows that the complex contains a phosphorus-sulphur bond and demonstrates the way in which the sulphur atom is shielded by the three aromatic rings.
