304429-89-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 304429-89-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,4,4,2 and 9 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 304429-89:
(8*3)+(7*0)+(6*4)+(5*4)+(4*2)+(3*9)+(2*8)+(1*9)=128
128 % 10 = 8
So 304429-89-8 is a valid CAS Registry Number.
304429-89-8Relevant articles and documents
Total synthesis of (+)-cyperolone
Klahn, Philipp,Duschek, Alexander,Liebert, Clemence,Kirsch, Stefan F.
, p. 1250 - 1253 (2012/05/19)
The total synthesis of (+)-cyperolone, an eudesmane-derived sesquiterpenoid from Cyperus rotundus, is described. The de novo synthesis was accomplished via a 15 step sequence starting from (R)-(-)-carvone. The synthetic route features a platinum-catalyzed
