118545-84-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 118545-84-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,5,4 and 5 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 118545-84:
(8*1)+(7*1)+(6*8)+(5*5)+(4*4)+(3*5)+(2*8)+(1*4)=139
139 % 10 = 9
So 118545-84-9 is a valid CAS Registry Number.
118545-84-9Relevant academic research and scientific papers
A FACILE SYNTHESIS OF NEW -2,2'-DIONES.
Deshmukh, R. S. Konde,Paradkar, M. V.
, p. 589 - 596 (2007/10/02)
The paper describes the reaction of 2,2'-dihydroxybenzil 1 with Wittig reagent 2 leading to the formation of a new heterocyclic system 4,4'-bicoumarins 3.Exclusive formation of bicoumarin and not lactone 4 is described.
