57826-69-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57826-69-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,8,2 and 6 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 57826-69:
(7*5)+(6*7)+(5*8)+(4*2)+(3*6)+(2*6)+(1*9)=164
164 % 10 = 4
So 57826-69-4 is a valid CAS Registry Number.
57826-69-4Relevant academic research and scientific papers
Synthesis of Benzofurodiazepines
Gatta, Franco,Settimj, Guido
, p. 1251 - 1254 (2007/10/02)
A synthesis of 4-N-oxides and of 3-hydroxy derivatives of 1,3-dihydro-2H-benzofurodiazepin-2-ones and of 2,3-dihydro-1H-benzofurodiazepines is described.Condensation of 2-acetyl- and 2-benzoyl-3-ethoxycarbonylaminobenzofurans with