179997-05-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 179997-05-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,9,9,9 and 7 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 179997-05:
(8*1)+(7*7)+(6*9)+(5*9)+(4*9)+(3*7)+(2*0)+(1*5)=218
218 % 10 = 8
So 179997-05-8 is a valid CAS Registry Number.
179997-05-8Relevant academic research and scientific papers
A catalytic amount of titanium tetrahalide as promoter for the addition reaction of silyl ketene acetals to imines
Shimizu, Makoto,Kume, Kouji,Fujisawa, Tamotsu
, p. 545 - 546 (2007/10/03)
In the presence of a catalytic amount of TiBr4 or Til4, the reaction of silyl ketene acetals with imines smoothly proceeds to give the corresponding β-amino esters in high yield with high anti-selectivity.
