177341-83-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 177341-83-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,7,3,4 and 1 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 177341-83:
(8*1)+(7*7)+(6*7)+(5*3)+(4*4)+(3*1)+(2*8)+(1*3)=152
152 % 10 = 2
So 177341-83-2 is a valid CAS Registry Number.
177341-83-2Relevant articles and documents
Synthesis and pKa evaluation of model phosphonamidic, phosphonamidothioic, and phosphonamidodithioic acids
Suarez, Alirica I.,Lin, Jing,Thompson, Charles M.
, p. 6117 - 6124 (1996)
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.