117951-83-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117951-83-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,9,5 and 1 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 117951-83:
(8*1)+(7*1)+(6*7)+(5*9)+(4*5)+(3*1)+(2*8)+(1*3)=144
144 % 10 = 4
So 117951-83-4 is a valid CAS Registry Number.
117951-83-4Relevant articles and documents
Synthesis of Cirsimaritin (5,4'-Dihydroxy-6,7-dimethoxyflavone) by Transacylation Method
Ramasubramanian, A.,Ravi, P.,Ramesh, P.
, p. 181 - 182 (2007/10/02)
Cirsimaritin (I) has been synthesised from the readily accessible dinatin (5,7,4'-trihydroxy-6-methoxyflavone).The key step involves transacylation of fully benzoylated dinatin.
