Biphenyl-4,4'-dicarboxylic acid 
Identification
Name  Biphenyl-4,4'-dicarboxylic acid
Synonyms  4,4'-Biphenyldicarboxylic acid
Molecular Formula  C14H10O4
Molecular Weight  242.23
CAS Registry Number  787-70-2
EINECS  212-328-3
Properties 
Melting point  300 oC
  

4-aminocyclopentene hydrochloride 
91469-55-5