117845-54-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117845-54-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,8,4 and 5 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 117845-54:
(8*1)+(7*1)+(6*7)+(5*8)+(4*4)+(3*5)+(2*5)+(1*4)=142
142 % 10 = 2
So 117845-54-2 is a valid CAS Registry Number.
117845-54-2Relevant articles and documents
Enamines: Part V - Synthesis of Substituted Phenyl Benzyl Ketones and 2-Arylisatogens
Kulkarni, Sheshgiri N.,Kamath, H. V.,Bhamare, N. K.
, p. 667 - 669 (2007/10/02)
Three different approaches of o/p-nitrophenyl benzyl ketones and their limitation in the synthesis of 2-arylisatogens are described.