4-(PHENYLAZO)BENZOIC ACID Chemical Properties

Melting point:

247-250 °C(lit.)

Boiling point:

418.1±28.0 °C(Predicted)

Density 

1.19±0.1 g/cm3(Predicted)

storage temp. 

Store at -20°C

pka

3.81±0.10(Predicted)

form 

powder to crystal

color 

Orange to Brown

EPA Substance Registry System

Benzoic acid, 4-(phenylazo)- (1562-93-2)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26

WGK Germany 

3

HS Code 

29270000

MSDS

• Language:English Provider:SigmaAldrich

4-(PHENYLAZO)BENZOIC ACID Usage And Synthesis

Uses

4-(Phenylazo)benzoic acid may be used in the preparation of a novel photochromic ZrO₂ precursor solution.

General Description

4-(Phenylazo)benzoic acid (PABA), an azobenzene derivative, is a photo-isomerisable molecule. It can be synthesized by reacting p-aminobenzoic acid with nitrosobenzene. The interaction of PABA with TiO₂ and ZnO electrodes has been investigated. A photoreversible switch has been developed using dimethylamino calix[4]arene and PABA. The post functionalization of poly(hydroxyethyl acrylate) core cross-linked star polymers with PABA induces an ability to complex with α-cyclodextrin.

4-(PHENYLAZO)BENZOIC ACID(1562-93-2)Related Product Information

• AZOBENZENE-4,4'-DICARBOXYLIC ACID
• 3,3'-AZODIBENZOIC ACID
• Azobenzene
• 4,4'-AZODIBENZOYL DICHLORIDE
• AZOBENZENE-4,4'-DICARBOXYLIC ACID DIMETHYL ESTER
• 4,4'-AZODIBENZOIC ACID DIETHYL ESTER
• P-(P-DIMETHYLAMINOPHENYLAZO)BENZOIC ACID SODIUM SALT
• 4-DIMETHYLAMINOAZOBENZENE-4'-CARBOXYLIC ACID
• 4-(PHENYLAZO)BENZOIC ACID
• CALCOMINE ORANGE 2RS
• Methyl Red sodium salt
• 2-[4-(DIMETHYLAMINO)PHENYLAZO]BENZOIC ACID
• 2-[4-(DIMETHYLAMINO)PHENYLAZO]BENZOIC ACID HYDROCHLORIDE
• 2-[4-(DIETHYLAMINO)PHENYLAZO]BENZOIC ACID
• 2-Hydroxy-5-(phenylazo)benzoic acid sodium salt
• 2-[4-(Dipropylamino)phenylazo]benzoic acid, 4-(Dipropylamino)azobenzene-2μ-carboxylic acid
• AZOXYBENZENE-4,4'-DICARBOXYLIC ACID DIETHYL ESTER
• 4-((4-(DIMETHYLAMINO)PHENYL)AZO)BENZOIC ACID, SUCCINIMIDYL ESTER