193753-51-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 193753-51-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,3,7,5 and 3 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 193753-51:
(8*1)+(7*9)+(6*3)+(5*7)+(4*5)+(3*3)+(2*5)+(1*1)=164
164 % 10 = 4
So 193753-51-4 is a valid CAS Registry Number.
193753-51-4Relevant academic research and scientific papers
Enantioselective aromatic Claisen rearrangement
Ito, Hisanaka,Sato, Azusa,Taguchi, Takeo
, p. 4815 - 4818 (2007/10/03)
The development of a highly enantioselective aromatic Claisen rearrangement was achieved by the reaction of catechol motto allylic ethers with chiral boron reagent 1. This system was also shown to avoid the formation of para rearrangement and abnormal Claisen rearrangement products.
