5137-89-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5137-89-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,1,3 and 7 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 5137-89:
(6*5)+(5*1)+(4*3)+(3*7)+(2*8)+(1*9)=93
93 % 10 = 3
So 5137-89-3 is a valid CAS Registry Number.
5137-89-3Relevant 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.
