144535-45-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 144535-45-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,5,3 and 5 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 144535-45:
(8*1)+(7*4)+(6*4)+(5*5)+(4*3)+(3*5)+(2*4)+(1*5)=125
125 % 10 = 5
So 144535-45-5 is a valid CAS Registry Number.
144535-45-5Relevant academic research and scientific papers
Synthesis of [a]annulated carbazoles from indol-2(3H)-one
Beccalli,Marchesini,Pilati
, p. 891 - 894 (2007/10/02)
Reaction of ethyl chloroformate with 3-(2-aryl-1-hydroxyethylidene)indol-2(3H)-ones 3 affords the corresponding ethyl 3-[(2aryl-1-ethoxycarbonyloxy)ethenyl]-2-(ethoxycarbonyloxy)indole-1-c arboxylates 4 from which ethyl 6-(ethoxycarbonyloxy)-11H-benzo[a]c
