143538-81-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143538-81-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,5,3 and 8 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 143538-81:
(8*1)+(7*4)+(6*3)+(5*5)+(4*3)+(3*8)+(2*8)+(1*1)=132
132 % 10 = 2
So 143538-81-2 is a valid CAS Registry Number.
143538-81-2Relevant academic research and scientific papers
A convenient synthesis of 2-nitrophenols from 1,2-dichlorobenzenes
Zilberman,Ioffe,Gozlan
, p. 659 - 660 (2007/10/02)
Aromatic nucleophilic substitution of 1,2-dichlorobenzenes 1 possessing a strong electron-withdrawing group in the 4-position with a nitrite ion give the corresponding 2-nitrophenols 5.
