89204-85-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89204-85-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,2,0 and 4 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 89204-85:
(7*8)+(6*9)+(5*2)+(4*0)+(3*4)+(2*8)+(1*5)=153
153 % 10 = 3
So 89204-85-3 is a valid CAS Registry Number.
89204-85-3Relevant articles and documents
Synthesis of 4H-Oxazoloindoles
Youssef, M. S. K.,Metwally, S. A. M.,El-Maghraby, M. A.,Younes, M. I.
, p. 878 - 881 (2007/10/02)
4-Acetyl-2-aryl-4H-oxazoloindoles (I) have been prepared by the interaction of aromatic aldehydes with N-acetyl-3-iminoisatin in the presence of piperidine.The structure of these products has been elucidated unambiguously by their synthesis involvi