113522-78-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 113522-78-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,3,5,2 and 2 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 113522-78:
(8*1)+(7*1)+(6*3)+(5*5)+(4*2)+(3*2)+(2*7)+(1*8)=94
94 % 10 = 4
So 113522-78-4 is a valid CAS Registry Number.
113522-78-4Relevant articles and documents
A (FORMAL) TOTAL SYNTHESIS OF (+)-STRIGOL, THE WITCHWEED GERMINATION FACTOR
Berlage, Ulrich,Schmidt, Juergen,Milkova, Zenka,Welzel, Peter
, p. 3095 - 3098 (1987)
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).
