Evaluation of 1, 3, 6, 8-Pyrene Tetra Sulfonic Acid Tetra Sodium Salt (PTSA) as an Agricultural Spray Tracer Dye

2014 ◽  
pp. 25-28
1982 ◽  
Vol 35 (8) ◽  
pp. 1727 ◽  
Author(s):  
J Rosevear ◽  
JFK Wilshire

The sodium salt of 4-amino-3-nitrobenzenesulfonic acid (O-nitroaniline-p-sulfonic acid) has been prepared by the action of dilute sodium hydroxide solution on ethyl [(4-chlorosulfonyl-2-nitro)- phenyllcarbamate. Central to this synthesis is the finding that the N-ethoxycarbonyl group, when located ortho to a nitro group (but not to a bromo group), is readily removed by dilute sodium hydroxide solution.


2006 ◽  
Vol 76 (6) ◽  
pp. 881-884 ◽  
Author(s):  
M. Kopacz ◽  
B. Bujonek ◽  
A. Kuzniar ◽  
S. Kopacz

1951 ◽  
Vol 73 (11) ◽  
pp. 5482-5483
Author(s):  
James S. Parsons ◽  
John H. Yoe
Keyword(s):  

2010 ◽  
Vol 62 ◽  
pp. 88-89
Author(s):  
Anna Merwid-Ląd ◽  
Małgorzata Trocha ◽  
Tomasz Sozański ◽  
Jan Magdalan ◽  
Ewa Chlebda ◽  
...  

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