80499-53-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 80499-53-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,4,9 and 9 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 80499-53:
(7*8)+(6*0)+(5*4)+(4*9)+(3*9)+(2*5)+(1*3)=152
152 % 10 = 2
So 80499-53-2 is a valid CAS Registry Number.
80499-53-2Relevant academic research and scientific papers
9-ARYLIDENE-1-AZAFLUORENES
Prostakov, N. S.,Fedorov, V. O.,Soldatenkov, A. T.
, p. 2031 - 2033 (2007/10/02)
In the condensation of 1-azafluorene with aromatic aldehydes having electron-donating or electron-withdrawing substituents in the benzene ring the Z and E isomers of 9-arylidene-1-azafluorene are formed.It is suggested that the Z isomers exist in the form
