28689-10-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28689-10-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,6,8 and 9 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 28689-10:
(7*2)+(6*8)+(5*6)+(4*8)+(3*9)+(2*1)+(1*0)=153
153 % 10 = 3
So 28689-10-3 is a valid CAS Registry Number.
28689-10-3Relevant 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 (1999)
Various substituted coumarins 3 were prepared via a dealkylative boron- mediated ring closure of ortho-methoxycinnamates 2.