143032-31-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143032-31-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,0,3 and 2 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 143032-31:
(8*1)+(7*4)+(6*3)+(5*0)+(4*3)+(3*2)+(2*3)+(1*1)=79
79 % 10 = 9
So 143032-31-9 is a valid CAS Registry Number.
143032-31-9Relevant academic research and scientific papers
Synthesis of benzosultams via intramolecular vicarious nucleophilic substitution of hydrogen
Wojciechowski,Makosza
, p. 571 - 576 (2007/10/02)
Intramolecular Vicarious Nucleophilic Substitution of Hydrogen (VNS) in N-(3-nitrophenyl)- and N-(3-nitrobenzyl)chloromethylsulfonamides leads to five-, six- and seven-membered benzosultam derivatives.
