119519-91-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 119519-91-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,9,5,1 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 119519-91:
(8*1)+(7*1)+(6*9)+(5*5)+(4*1)+(3*9)+(2*9)+(1*1)=144
144 % 10 = 4
So 119519-91-4 is a valid CAS Registry Number.
119519-91-4Relevant academic research and scientific papers
Stereocontrolled Synthesis of Necine Bases, (+)-Heliotridine and (+)-Retronecine
Kametani, Tetsuji,Yukawa, Hirotaka,Honda, Toshio
, p. 571 - 577 (2007/10/02)
Synthesis of pyrrolizidine alkaloids, (+)-heliotridine and (+)-retronecine from (S)-malic acid was achieved by utilizing an intermolecular carbenoid displacement reaction as a key step.
