51498-62-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 51498-62-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,4,9 and 8 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 51498-62:
(7*5)+(6*1)+(5*4)+(4*9)+(3*8)+(2*6)+(1*2)=135
135 % 10 = 5
So 51498-62-5 is a valid CAS Registry Number.
51498-62-5Relevant academic research and scientific papers
Synthesis of 4-Alkylcoumarins
Patra, Amarendra,Misra, Swapan K.
, p. 272 - 273 (2007/10/02)
Grignard addition of appropriated alkylmagnesium halides to 3-carbethoxycoumarin (1) in the presence of cuprous bromide followed by hydrolysis, decarboxylation and subsequent dehydrogenation of the resulting dihydrocoumarins (3) affords 4-alkylcoumarins.
