914933-64-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 914933-64-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,4,9,3 and 3 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 914933-64:
(8*9)+(7*1)+(6*4)+(5*9)+(4*3)+(3*3)+(2*6)+(1*4)=185
185 % 10 = 5
So 914933-64-5 is a valid CAS Registry Number.
914933-64-5Relevant articles and documents
Total synthesis of topopyrones B and D
Tan, Jason Samuel,Ciufolini, Marco A.
, p. 4771 - 4774 (2007/10/03)
(Chemical Equation Presented) We describe a straightforward synthesis of topopyrones B and D, which are potent and selective inhibitors of topoisomerase I. The chemistry should be suitable for additional structure-activity relationship (SAR) work.
