81589-53-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81589-53-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,5,8 and 9 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 81589-53:
(7*8)+(6*1)+(5*5)+(4*8)+(3*9)+(2*5)+(1*3)=159
159 % 10 = 9
So 81589-53-9 is a valid CAS Registry Number.
81589-53-9Relevant academic research and scientific papers
Synthesis of Gambirtannine Derivatives by Photocyclization of Enamine Intermediates
Atta-ur-Rahman,Ghazala, Maryam
, p. 59 - 62 (2007/10/02)
The synthesis of several gambirtannine derivatives by photochemical cyclization of enamine intermediates, prepared from harmaline and suitably substituted benzyl halides, is described.
