113566-20-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 113566-20-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,3,5,6 and 6 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 113566-20:
(8*1)+(7*1)+(6*3)+(5*5)+(4*6)+(3*6)+(2*2)+(1*0)=104
104 % 10 = 4
So 113566-20-4 is a valid CAS Registry Number.
113566-20-4Relevant academic research and scientific papers
A (FORMAL) TOTAL SYNTHESIS OF (+)-STRIGOL, THE WITCHWEED GERMINATION FACTOR
Berlage, Ulrich,Schmidt, Juergen,Milkova, Zenka,Welzel, Peter
, p. 3095 - 3098 (2007/10/02)
A synthetic route to (+)-1 commencing from (S)-malic acid and 20 is reported.Key steps are the coupling of 20 and 15 to give 21, an intramolecular Wittig reaction (25-27), and an oxidative cyclization (28-1).
