28379-57-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28379-57-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,3,7 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 28379-57:
(7*2)+(6*8)+(5*3)+(4*7)+(3*9)+(2*5)+(1*7)=149
149 % 10 = 9
So 28379-57-9 is a valid CAS Registry Number.
28379-57-9Relevant articles and documents
Enantioselective Synthesis of Seven Pyrrolizidine Diols from a Single Precursor
Chamberlin, A. Richard,Chung, John Y. L.
, p. 4425 - 4431 (2007/10/02)
The enantioselective synthesis of seven pyrrolizidine diols has been accomplished from a single, readily available intermediate.The key step of this general scheme involves an acetoxy-directed acyliminium ion-ketene dithioacetal cationic cyclization to gi
