84558-55-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 84558-55-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,5,5 and 8 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 84558-55:
(7*8)+(6*4)+(5*5)+(4*5)+(3*8)+(2*5)+(1*5)=164
164 % 10 = 4
So 84558-55-4 is a valid CAS Registry Number.
84558-55-4Relevant academic research and scientific papers
Synthesis and pKa evaluation of model phosphonamidic, phosphonamidothioic, and phosphonamidodithioic acids
Suarez, Alirica I.,Lin, Jing,Thompson, Charles M.
, p. 6117 - 6124 (2007/10/03)
Select phosphonamidic acids were synthesized that vary in the stepwise replacement of the phosphoryl oxygens for sulfur. The pKa values and spectroscopic properties were briefly examined.
