119433-13-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 119433-13-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,9,4,3 and 3 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 119433-13:
(8*1)+(7*1)+(6*9)+(5*4)+(4*3)+(3*3)+(2*1)+(1*3)=115
115 % 10 = 5
So 119433-13-5 is a valid CAS Registry Number.
119433-13-5Relevant academic research and scientific papers
Chemistry and Stereochemistry of Iridoids, XVI. - EPC-Synthesis of (-)-Hypnophilin
Weinges, Klaus,Iatridou, Helene,Dietz, Uwe
, p. 893 - 902 (2007/10/02)
The synthesis of enantiomerically pure (-)-hypnophilin (27) from (6R,7R)-(-)-7-hydroxy-3-oxabicyclonon-1-en-9-one (1) is described. 1 was obtained in 93 percent yield from catalpol, which is readily available from the aqueous sodium carbonate extra
