223778-71-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 223778-71-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,3,7,7 and 8 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 223778-71:
(8*2)+(7*2)+(6*3)+(5*7)+(4*7)+(3*8)+(2*7)+(1*1)=150
150 % 10 = 0
So 223778-71-0 is a valid CAS Registry Number.
223778-71-0Relevant articles and documents
An efficient large scale synthesis of coumarins by a dealkylative boron- mediated ring closure of 3-(ortho-methoxyaryl)propenoic esters
Dubuffet,Loutz,Lavielle
, p. 929 - 936 (2007/10/03)
Various substituted coumarins 3 were prepared via a dealkylative boron- mediated ring closure of ortho-methoxycinnamates 2.
