197902-91-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 197902-91-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,7,9,0 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 197902-91:
(8*1)+(7*9)+(6*7)+(5*9)+(4*0)+(3*2)+(2*9)+(1*1)=183
183 % 10 = 3
So 197902-91-3 is a valid CAS Registry Number.
197902-91-3Relevant articles and documents
A synthetic route for the generation of C-7 substituted azepinones
Robl, Jeffrey A.,Cimarusti, Maria P.
, p. 1393 - 1396 (1994)
A versatile method for the synthesis of 3-amino azepinones possessing alkyl substitution at the C-7 position is described. Compounds of this type may be viewed as conformationally restricted dipeptide surrogates.