7204-23-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7204-23-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,2,0 and 4 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 7204-23:
(6*7)+(5*2)+(4*0)+(3*4)+(2*2)+(1*3)=71
71 % 10 = 1
So 7204-23-1 is a valid CAS Registry Number.
7204-23-1Relevant articles and documents
Synthesis of ustalic acid, an inhibitor of Na+,K+-ATPase
Hayakawa, Ichiro,Watanabe, Hidekazu,Kigoshi, Hideo
, p. 5873 - 5877 (2008/09/21)
Ustalic acid, an inhibitor of Na+,K+-ATPase isolated from a poisonous mushroom, was synthesized in 8?steps using the Suzuki-Miyaura coupling and oxidation of methylene acetal as key steps.