84228-57-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 84228-57-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,2,2 and 8 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 84228-57:
(7*8)+(6*4)+(5*2)+(4*2)+(3*8)+(2*5)+(1*7)=139
139 % 10 = 9
So 84228-57-9 is a valid CAS Registry Number.
84228-57-9Relevant articles and documents
Asymmetric amino acid synthesis: Mitsunobu reaction on chiral cyanohydrins
Decicco, Carl P.,Grover, Paul
, p. 529 - 530 (1997)
BOC(SES)NH was reacted with chiral cyanohydrins using the Mitsunobu reaction to give good yields of protected α-aminonitriles, which were converted to chiral amino and imino acids.