129192-22-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129192-22-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,1,9 and 2 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 129192-22:
(8*1)+(7*2)+(6*9)+(5*1)+(4*9)+(3*2)+(2*2)+(1*2)=129
129 % 10 = 9
So 129192-22-9 is a valid CAS Registry Number.
129192-22-9Relevant articles and documents
Tandem hemiketal formation-intramolecular Friedel-Crafts alkylation: A facile route to hetero-atom-substituted benzo-fused bicyclo[3.3.1]nonanes
Wu, Yikang,Li, Yan,Wu, Yu-Lin
, p. 163 - 171 (2007/10/03)
A previously unknown intramolecular Friedel-Crafts alkylation with in situ formed hemiketals as the electrophile is reported.