67604-03-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 67604-03-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,6,0 and 4 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 67604-03:
(7*6)+(6*7)+(5*6)+(4*0)+(3*4)+(2*0)+(1*3)=129
129 % 10 = 9
So 67604-03-9 is a valid CAS Registry Number.
67604-03-9Relevant academic research and scientific papers
Synthesis of Verboccidentafuran
Bohlmann, Ferdinand,Trantow, Thomas
, p. 1689 - 1693 (2007/10/02)
Starting with the Diels-Alder adduct of 1-ethoxyisoprene and methoxyquinone the racemate of the furanocadinene derivative verboccidentafuran (15) from Verbesina occidentalis has been synthesized and with that its stereochemistry established.
