4-Biphenylcarboxylic acid CAS NO.92-92-2

1. Introduction of 4-Biphenylcarboxylic acid (CAS No.:92-92-2)
With the CAS registry number 92-92-2,4-Biphenylcarboxylic acid is also named as 4-Carboxy-(1,1'-biphenyl);

1. Introduction of 4-Biphenylcarboxylic acid (CAS No.:92-92-2)
With the CAS registry number 92-92-2, 4-Biphenylcarboxylic acid is also named as 4-Carboxy-(1,1'-biphenyl); Para phenyl benzoic acid. The IUPAC name of 4-Biphenylcarboxylic acid is 4-phenylbenzoic acid. It is white to light yellow crystal powder which is soluble in alcohol and ether, insoluble in water.

2. Properties of 4-Biphenylcarboxylic acid (CAS No.:92-92-2)
Appearance: white to light yellow crystal powder
Density: 1.185 g/cm³
Melting Point: 220-225 °C(lit.)
Boiling Point: 372.6 °C at 760 mmHg
Flash Point: 170 °C
Solubility: Soluble in alcohol and ether, insoluble in water

3. Preparation of 4-Biphenylcarboxylic acid (CAS No.:92-92-2)
4-Biphenylcarboxylic acid can be obtained by 1-biphenyl-4-yl-ethanone with the reagent O₂, Mn(NO₃)₂ and Co(NO₃)₂ and solvent acetic acid at 100 °C. The reaction time is 6 hours.


4. Use of 4-Biphenylcarboxylic acid (CAS No.:92-92-2)
4-Biphenylcarboxylic acid is used as polarographic analytical reagent. And it is also used in organic synthesis. For example: It reacts with N-phenylselanyl-phthalimide to get (4-phenylphenyl)(phenylseleno)methanone. This reaction needs reagent tri-n-butylphosphine and solvent tetrahydrofuran at temperature of 25 °C. The reaction time is 4.0 hours. The yield is 58 %.