139694-07-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139694-07-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,6,9 and 4 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 139694-07:
(8*1)+(7*3)+(6*9)+(5*6)+(4*9)+(3*4)+(2*0)+(1*7)=168
168 % 10 = 8
So 139694-07-8 is a valid CAS Registry Number.
139694-07-8Relevant academic research and scientific papers
Spiroannulation by the Sigmatropic Rearrangement via the Cyclic Allylsulfonium Ylide. A Stereoselective Synthesis of (+)-Acorenone B
Kido, Fusao,Abiko, Toshiya,Kato, Michiharu
, p. 229 - 234 (2007/10/02)
A spiroannulation reaction using the sigmatropic rearrangement via a cyclic allylsulfonium ylide was developed and applied to the synthesis of (+)-acorenone B starting from (-)-perillaldehyde.
