22557-92-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 22557-92-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,5,5 and 7 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 22557-92:
(7*2)+(6*2)+(5*5)+(4*5)+(3*7)+(2*9)+(1*2)=112
112 % 10 = 2
So 22557-92-2 is a valid CAS Registry Number.
22557-92-2Relevant articles and documents
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).
