459457-31-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 459457-31-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,5,9,4,5 and 7 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 459457-31:
(8*4)+(7*5)+(6*9)+(5*4)+(4*5)+(3*7)+(2*3)+(1*1)=189
189 % 10 = 9
So 459457-31-9 is a valid CAS Registry Number.
459457-31-9Relevant academic research and scientific papers
C1-C5 photochemical cyclization of enediynes
Alabugin, Igor V.,Kovalenko, Serguei V.
, p. 9052 - 9053 (2007/10/03)
This study reports a new photochemical cyclization of tetrafluoropyridinyl (TFP)-substituted enediynes that is accompanied with four formal hydrogen-atom abstractions from organic substrates and is mechanistically different from the Bergman cyclization. C
