839-28-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 839-28-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,3 and 9 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 839-28:
(5*8)+(4*3)+(3*9)+(2*2)+(1*8)=91
91 % 10 = 1
So 839-28-1 is a valid CAS Registry Number.
839-28-1Relevant academic research and scientific papers
Reactions with Phosphine Alkylenes, XLI. Resolution of Chiral Phosphonium Salts
Bestmann, Hans Juergen,Lienert, Juergen,Heid, Eckard
, p. 3875 - 3879 (2007/10/02)
The preparation and resolution of chiral phosphonium salts 1a - c via the corresponding phosphonium ylides is described.
