54558-71-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54558-71-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,5,5 and 8 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 54558-71:
(7*5)+(6*4)+(5*5)+(4*5)+(3*8)+(2*7)+(1*1)=143
143 % 10 = 3
So 54558-71-3 is a valid CAS Registry Number.
54558-71-3Relevant academic research and scientific papers
A novel synthesis of unsymmetrical tertiary phosphines: Selective nucleophilic substitution on phosphorus(III)
Singh, Sumita,Nicholas, Kenneth M.
, p. 149 - 150 (2007/10/03)
A new synthesis of unsymmetrical tertiary phosphines has been developed employing selective, sequential alkylation of chloroaminophospnines by Grignard and organolithium reagents.
