20499-26-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20499-26-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,4,9 and 9 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 20499-26:
(7*2)+(6*0)+(5*4)+(4*9)+(3*9)+(2*2)+(1*6)=107
107 % 10 = 7
So 20499-26-7 is a valid CAS Registry Number.
20499-26-7Relevant academic research and scientific papers
The synthesis of 7-alkoxyindoles
Dobson,Todd,Gilmore
, p. 611 - 617 (2007/10/02)
A number of protected 7-hydroxyindoles was prepared by reaction of the protected 2-nitrophenols with vinylmagnesium bromide. Benzhydryl was shown to be the protecting group of choice, giving good yields of the indole and being readily removed for subsequent transformations of the 7-hydroxy function.
