117888-05-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117888-05-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,8,8 and 8 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 117888-05:
(8*1)+(7*1)+(6*7)+(5*8)+(4*8)+(3*8)+(2*0)+(1*5)=158
158 % 10 = 8
So 117888-05-8 is a valid CAS Registry Number.
117888-05-8Relevant articles and documents
Stereoselective one-pot synthesis of highly differently substituted thiochromans
Seifert, Andrea,Mahrwald, Rainer
, p. 6466 - 6468 (2009)
A highly stereoselective one-pot procedure to anti-configured thiochromans is described. This reaction functions at room temperature in the presence of catalytic amounts of trifluoroacetic acid. The transformation gives a selective but optional access to