117320-03-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117320-03-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,3,2 and 0 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 117320-03:
(8*1)+(7*1)+(6*7)+(5*3)+(4*2)+(3*0)+(2*0)+(1*3)=83
83 % 10 = 3
So 117320-03-3 is a valid CAS Registry Number.
InChI:InChI=1/C13H6F4O/c14-9-3-1-7(5-11(9)16)13(18)8-2-4-10(15)12(17)6-8/h1-6H
117320-03-3Relevant articles and documents
Palladium-catalyzed oxidative carbonylation for the synthesis of symmetrical diaryl ketones at atmospheric co pressure
Li, Yang,Lu, Wei,Xue, Dong,Wang, Chao,Liu, Zhao-Tie,Xiao, Jianliang
supporting information, p. 1097 - 1100 (2014/05/20)
A mild and efficient synthesis of symmetrical diaryl ketones by palladium-catalyzed oxidative carbonylation of arylboronic acids with carbon monoxide at atmospheric pressure is reported. Georg Thieme Verlag Stuttgart New York.