168558-22-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 168558-22-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,8,5,5 and 8 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 168558-22:
(8*1)+(7*6)+(6*8)+(5*5)+(4*5)+(3*8)+(2*2)+(1*2)=173
173 % 10 = 3
So 168558-22-3 is a valid CAS Registry Number.
168558-22-3Relevant academic research and scientific papers
Synthesis of 1,1-difluoroalkenes via α,α-difluoro-β-lactones
Ocampo, Rogelio,Dolbier, William R.,Paredes, Rodrigo
, p. 41 - 50 (2007/10/03)
A new method for the general synthesis of 1,1-difluoroalkenes from ketones is presented.The procedure involves initial condensation of a ketone with the difluoro Reformatsky reagent, hydrolysis to form the α,α-difluoro-β-hydroxy acids, followed by cycliza
