142311-28-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 142311-28-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,3,1 and 1 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 142311-28:
(8*1)+(7*4)+(6*2)+(5*3)+(4*1)+(3*1)+(2*2)+(1*8)=82
82 % 10 = 2
So 142311-28-2 is a valid CAS Registry Number.
142311-28-2Relevant articles and documents
Synthesis of 1,3-Disubstituted-2-amino-5-hydroxyindoles by Reductive Aromatization
Player, Mark R.,Sowell, J. Walter
, p. 125 - 128 (2007/10/02)
Reductive aromatization and demethylation of 1,3-disubstituted-2-amino-5-oxo-7a-methyl-5,7a-dihydroindoles with zinc, pyridine and a trace of water yields 1,3-disubstituted-2-amino-5-hydroxyindoles.Simple derivatives of the 5-hydroxy substituent are described.