74991-82-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74991-82-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,9,9 and 1 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 74991-82:
(7*7)+(6*4)+(5*9)+(4*9)+(3*1)+(2*8)+(1*2)=175
175 % 10 = 5
So 74991-82-5 is a valid CAS Registry Number.
74991-82-5Relevant articles and documents
AN EFFICIENT CHIRAL SYNTHESIS OF (+)-SESBANINE
Tomioka, Kiyoshi,Koga, Kenji
, p. 2321 - 2324 (1980)
(+)-Sesbanine was effectively synthesized from 4-methylnicotinonitrile and 1-malic acid.