—————————————— el 
Dichlorobenzene (DCB) 
o-Dichlorobenzene (o-DCB) 
After ingestion of o-dichlorobenzene, urine of rabbits were found to 
contain 2,3- and 3,4-dichlorophenol free and as O-glucuronic and sulfuric 
acid conjugates, 3,4- and 4,5-dichlorocatechol free and as the O-glucuronide 
and sulfate, and 3,4-dichlorophenylmercapturic acid (56, 57). 
p-Dichlorobenzene (p-DCB) 
After ingestion of p-dichlorobenzene, 2,5-dichlorophenol (30%) free 
and as the glucuronide and sulfate and 2,5-dichloroquinol (6%) were excreted 
(57). In humans, 2,5-dichlorophenol was aiso found in the urine (1124). 
m-Dichlorobenzene (m-DCB) 
Urine was coilected from a rabbit fed m-dichlorobenzene. Chroma- 
tography of the monophenolic fraction revealed the presence of 2,4- and 
3,5-dichlorophenol. In the dihydric phenol fraction, 3,5-dichlorocatechol 
and 4-chlorocatechol were found. A mercapturic acid observed was 
identified as 2,4-dichlorophenylmercapturic acid (1126, 1127). 
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