157690-13-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157690-13-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,6,9 and 0 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 157690-13:
(8*1)+(7*5)+(6*7)+(5*6)+(4*9)+(3*0)+(2*1)+(1*3)=156
156 % 10 = 6
So 157690-13-6 is a valid CAS Registry Number.
157690-13-6Relevant articles and documents
A Novel Method for the Synthesis of α-Fluoroketones via Claisen Rearrangement
Reutrakul, Vichai,Kruahong, Thongchai,Pohmakotr, Manat
, p. 4853 - 4856 (2007/10/02)
Fluorine-facilitated Claisen rearrangement has been employed as a key step in the synthesis of α-fluoroketones 5.The elimination of sulfenic acid from the allyl ethers 3 are effected under FVP conditions.
