81531-48-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81531-48-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,5,3 and 1 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 81531-48:
(7*8)+(6*1)+(5*5)+(4*3)+(3*1)+(2*4)+(1*8)=118
118 % 10 = 8
So 81531-48-8 is a valid CAS Registry Number.
81531-48-8Relevant academic research and scientific papers
Synthetic Photochemistry: Synthesis of (+/-)-Oliveridine
Kessar, S. V.,Mohammad, Taj,Gupta, Y. P.
, p. 321 - 324 (2007/10/02)
The first synthesis of (+/-)-oliveridine (9b) and (+/-)-epioliveridine (9a) are described.The key steps are:(i) preparation of N--2'-bromo-5'-methoxyphenylacetamide (4), its Bischler-Napieralski cyclisation followed by m
