663170-97-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 663170-97-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,3,1,7 and 0 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 663170-97:
(8*6)+(7*6)+(6*3)+(5*1)+(4*7)+(3*0)+(2*9)+(1*7)=166
166 % 10 = 6
So 663170-97-6 is a valid CAS Registry Number.
663170-97-6Relevant articles and documents
Synthesis of carbamoylpyridine and imidazo[1,5-a]pyridin-1,3-diones via ortho-acetalhydantoin intermediates
Chezal, Jean M.,Moreau, Emmanuel,Desbois, Nicolas,Blache, Yves,Chavignon, Olivier,Teulade, Jean C.
, p. 553 - 556 (2007/10/03)
A new method for preparing carbamoylpyridine and imidazo[1,5-a]pyridin-1,3- dione rings from an ortho-acetalmethylideneimidazolidin-2,4-dione is described.