72323-98-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72323-98-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,3,2 and 3 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 72323-98:
(7*7)+(6*2)+(5*3)+(4*2)+(3*3)+(2*9)+(1*8)=119
119 % 10 = 9
So 72323-98-9 is a valid CAS Registry Number.
72323-98-9Relevant articles and documents
Trimethylsilylesters of Fluorobenzenesulfonic acids
Johannsen, Heiner,Sartori, Peter
, p. 674 - 679 (2007/10/02)
Fluorobenzenesulfonic acids were prepared by electrophilic sulfonation of fluorobenzenes 1.The acids are obtained as hydrates and converted to their trimethylsilyl esters 2 for characterization.