647842-41-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 647842-41-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,7,8,4 and 2 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 647842-41:
(8*6)+(7*4)+(6*7)+(5*8)+(4*4)+(3*2)+(2*4)+(1*1)=189
189 % 10 = 9
So 647842-41-9 is a valid CAS Registry Number.
647842-41-9Relevant academic research and scientific papers
Convergent synthesis of the A-F ring segment of yessotoxin and adriatoxin
Kadota, Isao,Ueno, Hirokazu,Yamamoto, Yoshinori
, p. 8935 - 8938 (2007/10/03)
A convergent synthesis of the A-F ring segment of yessotoxin and adriatoxin was achieved via the intramolecular allylation of an α-chloroacetoxy ether and subsequent ring-closing metathesis.