117968-40-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117968-40-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,9,6 and 8 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 117968-40:
(8*1)+(7*1)+(6*7)+(5*9)+(4*6)+(3*8)+(2*4)+(1*0)=158
158 % 10 = 8
So 117968-40-8 is a valid CAS Registry Number.
117968-40-8Relevant articles and documents
A NEW SYNTHESIS OF THIOFLAVONES
Taylor, A. W.,Dean, D. K.
, p. 1845 - 1848 (2007/10/02)
A new synthesis of thioflavones from β-keto sulphoxide (12) is described.