21.1: Abbreviations Used
- Page ID
- 214013
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Ph = Phenyl group, or 
Example: Phenyl chloride 
or PhCl
Ar = Aryl group, or 
(S is a substituent on the benzene ring). Example: Aryl chloride 
or ArCl.
The nature and position of S may remain unspecified.
Ac = Acyl group, or 
Example: Acyl chloride 
or AcCl
AcO = Acetoxy group, or 
Example: Acetic acid 
or AcOH