172217-12-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 172217-12-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,2,2,1 and 7 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 172217-12:
(8*1)+(7*7)+(6*2)+(5*2)+(4*1)+(3*7)+(2*1)+(1*2)=108
108 % 10 = 8
So 172217-12-8 is a valid CAS Registry Number.
172217-12-8Relevant articles and documents
Insertion of arynes into carbon-halogen σ-bonds: Regioselective acylation of aromatic rings
Yoshida, Hiroto,Mimura, Yasuhiro,Ohshita, Joji,Kunai, Atsutaka
, p. 2405 - 2407 (2008/02/08)
Arynes were found to insert into carbon-halogen σ-bonds of various acid halides, enabling acyl and halogen moieties to be introduced simultaneously into adjacent positions of aromatic rings. The Royal Society of Chemistry.