264189-55-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 264189-55-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,4,1,8 and 9 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 264189-55:
(8*2)+(7*6)+(6*4)+(5*1)+(4*8)+(3*9)+(2*5)+(1*5)=161
161 % 10 = 1
So 264189-55-1 is a valid CAS Registry Number.
264189-55-1Relevant articles and documents
Selenium dioxide: A selective oxidising agent for the functionalisation of quinolines
Jnaneshwara,Shaikh, Nadim S.,Bapat, Neelam V.,Deshpande, Vishnu H.
, p. 34 - 35 (2007/10/03)
A simple method is described for the preparation of 1, 3-dihydrofuro[4, 3-b]quinolin-3-ol starting from aniline and methyl acetoacetate using selenium dioxide.