111947-98-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 111947-98-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,9,4 and 7 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 111947-98:
(8*1)+(7*1)+(6*1)+(5*9)+(4*4)+(3*7)+(2*9)+(1*8)=129
129 % 10 = 9
So 111947-98-9 is a valid CAS Registry Number.
111947-98-9Relevant articles and documents
Effect of Metal Ions in Organic Synthesis: XXXII. Copper(II) Chloride-Catalyzed Synthesis of New 1-Ureido-3-sulfonylpyrroles
Attanasi, Orazio A.,Filippone, Paolino,Santeusanio, Stefania,Serra-Zanetti, Franco
, p. 381 - 383 (2007/10/02)
1-Ureido-3-sulfonylpyrroles 4 were prepared by the reaction of aminocarbonylazoalkanes 1 with α-sulfonylketones 2 in the presence of Cu(II) chloride as catalyst.
