202803-31-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 202803-31-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,2,8,0 and 3 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 202803-31:
(8*2)+(7*0)+(6*2)+(5*8)+(4*0)+(3*3)+(2*3)+(1*1)=84
84 % 10 = 4
So 202803-31-4 is a valid CAS Registry Number.
202803-31-4Relevant academic research and scientific papers
Synthesis of Dendritic Polypyridines Using Divergent Methodology
Chessa, Gavino,Scrivanti, Alberto
, p. 1851 - 1855 (2007/10/03)
The synthesis of dendritic polypyridines is described. The dendrimers were prepared by a divergent approach using diethyl 4-hydroxypyridine-2,6-dicarboxylate 1 and 4-hydroxy-2,6-bis(acetoxymethyl)pyridine 6 as building blocks. The transformation of the su
