121405-06-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121405-06-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,4,0 and 5 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 121405-06:
(8*1)+(7*2)+(6*1)+(5*4)+(4*0)+(3*5)+(2*0)+(1*6)=69
69 % 10 = 9
So 121405-06-9 is a valid CAS Registry Number.
121405-06-9Relevant articles and documents
Synthesis of Side-Chain Unsaturated endo- and exo-Brevicomins. Representatives of Pheromone Analogs in the Dioxabicyclooctane Series
Wershofen, Stefan,Scharf, H.-D.
, p. 854 - 858 (2007/10/02)
The title substances endo- and exo-9 were synthesized via selective trans- and cis-opening of the epoxy tosylate 3, respectively.The tosylate 3 is easily obtainable from pentadienol 1.
