202844-41-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 202844-41-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,2,8,4 and 4 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 202844-41:
(8*2)+(7*0)+(6*2)+(5*8)+(4*4)+(3*4)+(2*4)+(1*1)=105
105 % 10 = 5
So 202844-41-5 is a valid CAS Registry Number.
202844-41-5Relevant articles and documents
A novel synthetic route to furan-lignans
Wu, Anxin,Wang, Mingyi,Pan, Xinfu
, p. 2087 - 2091 (2007/10/03)
Three naturally occurring furan-lignans and two analogs have been synthesized by a short and efficient route starting from the corresponding aryl acid. The selective reductive removal of allylic hydroxy by palladium oxide in a mixed solvent of THF-CHCl3 was employed as the key step.