17543-49-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17543-49-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,5,4 and 3 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 17543-49:
(7*1)+(6*7)+(5*5)+(4*4)+(3*3)+(2*4)+(1*9)=116
116 % 10 = 6
So 17543-49-6 is a valid CAS Registry Number.
17543-49-6Relevant articles and documents
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.