281653-94-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 281653-94-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,1,6,5 and 3 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 281653-94:
(8*2)+(7*8)+(6*1)+(5*6)+(4*5)+(3*3)+(2*9)+(1*4)=159
159 % 10 = 9
So 281653-94-9 is a valid CAS Registry Number.
281653-94-9Relevant academic research and scientific papers
Mixed bidentate ligands: The first chiral phosphonite-phosphite
T. Reetz, Manfred,Pastó, Mireia
, p. 3315 - 3317 (2007/10/03)
The chiral bidentate phosphonite-phosphite ligand (R)-4-((R)-2- naphtho[1,2-f]naphtho[2,1-d]1,3,2-dioxaphosphepin-4-ylphenoxy)naphtho[1,2- f]naphtho[2,1-d]1,3,2-dioxaphosphepin is accessible in three simple steps starting from o-bromophenol. (C) 2000 Else
