2,3,5,6-TCNB 
Some reduction of the nitro group took place in the gut after 
administration of 2,3,5,6-TCNB to rabbits. Very small amounts of 
tetrachloroaniline, mercapturic acid, free 4-amino-2,3,5,6-tetra- 
chlorophenol, a sulfate and a glucuronide were excreted in the urine 
CL6S .. 170.,° 7b): 
Cl 1 
2,3,5,6-TCNB 
H 
yf ay thc, 
NH 7 | 
° Fea dean ‘ls 

Cl rol Cl 1 
ee Cl Cl Cl 
eae Mercapturic Acid 
NH, 
Cl GL. 
C GT 
H 
Glucuronide Sulfate 
302 
