157731-75-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157731-75-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,7,3 and 1 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 157731-75:
(8*1)+(7*5)+(6*7)+(5*7)+(4*3)+(3*1)+(2*7)+(1*5)=154
154 % 10 = 4
So 157731-75-4 is a valid CAS Registry Number.
157731-75-4Relevant academic research and scientific papers
Danheiser,Casebier,Huboux
, p. 4844 - 4848 (1994)
This paper describes the first total syntheses of the diterpene quinones aegyptinones A and B via an extremely direct route which should easily accommodate the production of gram quantities of each compound. The key step in the synthetic strategy involves
