91029-04-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91029-04-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,0,2 and 9 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 91029-04:
(7*9)+(6*1)+(5*0)+(4*2)+(3*9)+(2*0)+(1*4)=108
108 % 10 = 8
So 91029-04-8 is a valid CAS Registry Number.
91029-04-8Relevant articles and documents
BISINDOLES: 19.* SYNTHESIS OF 2,5'-BIS-1H-INDOLE
Samsoniya, Sh. A.,Mumladze, E. A.,Chikvaidze, I. Sh.,Suvorov, N. N.
, p. 280 - 282 (1984)
The cyclization of 5-acetyl-2-ethoxycarbonylindole phenylhydrazone gave 2'-ethoxycarbonyl-2,5'-bis-1H-indole, the saponification of which and subsequent decarboxylation of the resulting acid led to the formation of 2,5'-bis-1H-indole - a new unsymmetrical
