181819-58-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 181819-58-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,1,8,1 and 9 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 181819-58:
(8*1)+(7*8)+(6*1)+(5*8)+(4*1)+(3*9)+(2*5)+(1*8)=159
159 % 10 = 9
So 181819-58-9 is a valid CAS Registry Number.
181819-58-9Relevant academic research and scientific papers
Radical reactions leading to substituted coumarins
Giraud, Anne,Vanelle, Patrice,Giraud, Luc
, p. 4321 - 4322 (2007/10/03)
The reaction of 4-hydroxycoumarins with a series of quinonic chlorides under photostimulation was shown to provide an efficient approach to 3- alkylated coumarin derivatives. Alkylation reactions of this type proceeded via an electron transfer mechanism (
