159217-49-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 159217-49-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,9,2,1 and 7 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 159217-49:
(8*1)+(7*5)+(6*9)+(5*2)+(4*1)+(3*7)+(2*4)+(1*9)=149
149 % 10 = 9
So 159217-49-9 is a valid CAS Registry Number.
159217-49-9Relevant articles and documents
Synthesis of Sterically Hindered 1,3-Connected Polyarylmethanes
Rajca, Andrzej,Janicki, Slawomir
, p. 7099 - 7107 (2007/10/02)
Sterically hindered 1,3-connected polyarylmethanes were prepared by repetitive additions of aryllithiums to carbonyl compounds.Synthetic routes with various degree of convergence were used.Variable temperature NMR spectroscopy, in conjunction with other t