220205-25-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 220205-25-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,2,0 and 5 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 220205-25:
(8*2)+(7*2)+(6*0)+(5*2)+(4*0)+(3*5)+(2*2)+(1*5)=64
64 % 10 = 4
So 220205-25-4 is a valid CAS Registry Number.
220205-25-4Relevant articles and documents
Intramolecular Diels-Alder reaction of 1-aminoisobenzofurans: Application to the synthesis of benzo [c]phenanthridines
Bernabe, Pablo,Castedo, Luis,Dominguez, Domingo
, p. 9785 - 9788 (1998)
Intramolecular Diels-Alder reactions of 1-aminoisobenzofurans give benzo[c)phenanthridines. The reactive intermediates are generated from o- (diazomethyl)benzamides.