169776-18-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 169776-18-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,9,7,7 and 6 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 169776-18:
(8*1)+(7*6)+(6*9)+(5*7)+(4*7)+(3*6)+(2*1)+(1*8)=195
195 % 10 = 5
So 169776-18-5 is a valid CAS Registry Number.
169776-18-5Relevant articles and documents
Organolead-mediated arylation of allyl β-keto esters: selective synthesis of 2'-hydroxyisoflavones
Donnelly, Dervilla M. X.,Finet, Jean-Pierre,Rattigan, Bernard A.
, p. 1679 - 1684 (2007/10/02)
Arylation of the A-ring-unsubstituted and -substituted 3-(allyloxycarbonyl)chroman-4-ones 6-8 with lead(IV) triacetate 5 followed by selective catalytic deallyloxycarbonylation-dehydrogenation afforded 2'-protected