98369-57-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98369-57-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,3,6 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 98369-57:
(7*9)+(6*8)+(5*3)+(4*6)+(3*9)+(2*5)+(1*7)=194
194 % 10 = 4
So 98369-57-4 is a valid CAS Registry Number.
98369-57-4Relevant academic research and scientific papers
C/O-Alkylation Ratios in the Ring-Closures of 7-Halo-3-oxo Esters
Brandaenge, Svante,Lindquist, Bo
, p. 807 - 810 (2007/10/02)
Four acyclic 7-halo-3-oxo esters have been treated with bases under various conditions to obtain six-membered ring compounds.These halo keto esters give more O-alkylation (C/O = 0.18-3.2) than do the analogous halo ketones.
