50903-53-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 50903-53-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,0,9,0 and 3 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 50903-53:
(7*5)+(6*0)+(5*9)+(4*0)+(3*3)+(2*5)+(1*3)=102
102 % 10 = 2
So 50903-53-2 is a valid CAS Registry Number.
50903-53-2Relevant academic research and scientific papers
Bis(pentaluorophenyl) sulfite - A new reagent for the synthesis of activated pentafluorophenyl esters of N-protected amino acids
Il'ina,Davidovich,Rogozhin
, p. 2539 - 2541 (2007/10/02)
A method was proposed for the preparation of bis(perfluorophenyl) sulfite, an effective new reagent for the synthesis of pentafluorophenyl esters of N-protected amino acids without racemization.
