109756-31-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109756-31-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,7,5 and 6 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 109756-31:
(8*1)+(7*0)+(6*9)+(5*7)+(4*5)+(3*6)+(2*3)+(1*1)=142
142 % 10 = 2
So 109756-31-2 is a valid CAS Registry Number.
109756-31-2Relevant academic research and scientific papers
Synthesis of α-Fluorovinylphosphonates
Blackburn, G. Michael,Parratt, Martin J.
, p. 1417 - 1424 (2007/10/02)
A new general synthesis of α-fluorovinylphosphonates is provided by a Wadsworth-Emmons condensation of tetra-alkyl fluoromethylenebisphosphonates (1) with aldehydes and ketones.The reaction shows useful stereoselectivity favouring the less-hindered alkene
