847869-80-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 847869-80-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,7,8,6 and 9 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 847869-80:
(8*8)+(7*4)+(6*7)+(5*8)+(4*6)+(3*9)+(2*8)+(1*0)=241
241 % 10 = 1
So 847869-80-1 is a valid CAS Registry Number.
847869-80-1Relevant articles and documents
Simple synthesis of 7-amino-4,5-dihydrobenzo[f][1,4]oxazepin-3-ones
Kwiecien, Halina,Szychowska, Monika
, p. 3599 - 3609 (2008/03/13)
A simple method for the synthesis of 7-amino-4,5-dihydro-benzo[f][1,4] oxazepin-3-ones from 5-nitrobenzaldehydes and 2-haloesters was described. The three-step procedure involves the synthesis of methyl 2-(2-formyl-4- nitrophenoxy)alkanoates, followed by