71973-98-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71973-98-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,9,7 and 3 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 71973-98:
(7*7)+(6*1)+(5*9)+(4*7)+(3*3)+(2*9)+(1*8)=163
163 % 10 = 3
So 71973-98-3 is a valid CAS Registry Number.
71973-98-3Relevant academic research and scientific papers
Synthesis of arylsulfonylcarbamic acid derivatives using a new, phosgene-free method
Besenyei, Gabor,Nemeth, Sandor,Simandi, Laszlo I.
, p. 5833 - 5836 (2007/10/02)
Arylsulfonylcarbamic acid esters, thioesters, and amides, 3, have been prepared via catalytic carbonylation of alkali metal salts of N-chloroarylsulfonamides, 1, and treatment of the reaction mixture with R1XH (X=O, S, NR2).
