73193-99-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73193-99-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,1,9 and 3 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 73193-99:
(7*7)+(6*3)+(5*1)+(4*9)+(3*3)+(2*9)+(1*9)=144
144 % 10 = 4
So 73193-99-4 is a valid CAS Registry Number.
73193-99-4Relevant academic research and scientific papers
Total Synthesis of (+/-)-9-Pupukeanone
Schiehser, Guy A.,White, James D.
, p. 1864 - 1868 (2007/10/02)
A synthesis of (+/-)-9-pupukeanone (3) is described in which the pupukeanane skeleton is assembled by means of an intramolecular Diels-Alder reaction of 20 to 21.The vinyl ketone 20 was constructed via a sequence beginning from 8 and proceeding through di
