343981-91-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 343981-91-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,3,9,8 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 343981-91:
(8*3)+(7*4)+(6*3)+(5*9)+(4*8)+(3*1)+(2*9)+(1*1)=169
169 % 10 = 9
So 343981-91-9 is a valid CAS Registry Number.
343981-91-9Relevant academic research and scientific papers
Total synthesis of fostriecin (CI-920)
Boger,Ichikawa,Zhong
, p. 4161 - 4167 (2007/10/03)
The first total synthesis of the potent antitumor agent fostriecin (CI-920) is described, confirming the relative and absolute stereochemistry assignments. Fostriecin is a unique phosphate monoester which exhibits weak topoisomerase II inhibition (IC
