18959-88-1

Basic information

• Product Name: 1,4-bis(4-oxy-1,2-benzenedicarboxylic acid)benzene
• Synonyms: 1,4-bis(4-oxy-1,2-benzenedicarboxylic acid)benzene
• CAS NO: 18959-88-1
• Molecular Weight: 438.347
• Mol File: 18959-88-1.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 1,4-bis(4-oxy-1,2-benzenedicarboxylic acid)benzene(CAS DataBase Reference)
• NIST Chemistry Reference: 1,4-bis(4-oxy-1,2-benzenedicarboxylic acid)benzene(18959-88-1)
• EPA Substance Registry System: 1,4-bis(4-oxy-1,2-benzenedicarboxylic acid)benzene(18959-88-1)

Safety Data

• Hazardous Substances Data: 18959-88-1(Hazardous Substances Data)

Upstream product

• 41663-84-7 4-nitro-N-methyl-phthalimide 
• 123-31-9 hydroquinone 

Downstream Products

• 17828-53-4 1,4-bis(3,4-dicarboxyphenoxy)benzene dianhydride 
• 1477517-85-3 [Co(1,4-bis(4-oxy-1,2-benzenedicarboxylic acid)benzene(-2H))(1,10-phenanthroline)₂(H₂O)] 

Relevant articles and documents

METHODS OF MANUFACTURE OF DIANHYDRIDES

A method of making dianhydride includes contacting a N-Substituted diimide with a carboxylic acid and substituted or unsubstituted dimethyl sulfoxide in an aqueous medium to provide a reaction mixture including tetra acid, triacid, imide diacid and diimide along with substituted or unsubstituted acetic acid, dimethyl sulfoxide and their derivatives. The method includes the isolation of tetra acid by precipitation in water followed by centrifuge or filtration. The tetra acid is converted into the corresponding dianhydride. The dianhydride prepared by the method are also described as precursor to make polyetherimide.