212569-04-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 212569-04-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,2,5,6 and 9 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 212569-04:
(8*2)+(7*1)+(6*2)+(5*5)+(4*6)+(3*9)+(2*0)+(1*4)=115
115 % 10 = 5
So 212569-04-5 is a valid CAS Registry Number.
212569-04-5Relevant articles and documents
A new approach to 2-aryl-7-alkoxy-benzofurans: Synthesis of ailanthoidol, a natural neolignan
Fuganti, Claudio,Serra, Stefano
, p. 5609 - 5610 (1998)
A general method of synthesis of 2-aryl-7-alkoxy-benzofurans is described using a benzoannulation reaction as key step. The usefulness of this approach is shown in the new synthesis of ailanthoidol, a benzofuranoid neolignan isolated from the tree Zanthox