5731-15-7

Basic information

• Product Name: P-TERPHENYL-4-CARBOXYLIC ACID
• Synonyms: P-TERPHENYL-4-CARBOXYLIC ACID;1,1':4',1''-terphenyl-4-carboxylic acid;p-Terphenyl-4-carboxylic acid 97%
• CAS NO: 5731-15-7
• Molecular Formula: C₁₉H₁₄O₂
• Molecular Weight: 274.31326
• Product Categories: C13 to C42+;Carbonyl Compounds;Carboxylic Acids
• Mol File: 5731-15-7.mol
• Article Data: 2

Chemical Properties

• Melting Point: 305 °C (dec.)
• Boiling Point: 495.961 °C at 760 mmHg
• Flash Point: 222.369 °C
• Appearance: /
• Density: 1.18 g/cm³
• Vapor Pressure: 2.92E-14mmHg at 25°C
• Refractive Index: 1.615
• CAS DataBase Reference: P-TERPHENYL-4-CARBOXYLIC ACID(CAS DataBase Reference)
• NIST Chemistry Reference: P-TERPHENYL-4-CARBOXYLIC ACID(5731-15-7)
• EPA Substance Registry System: P-TERPHENYL-4-CARBOXYLIC ACID(5731-15-7)

Safety Data

• Hazard Codes: Xn,N
• Statements: 22-36-50/53
• Safety Statements: 26-36-60-61
• RIDADR: UN 3077 9/PG 3
• WGK Germany: 3
• Hazardous Substances Data: 5731-15-7(Hazardous Substances Data)

Usage

General Description

P-terphenyl-4-carboxylic acid, also known as p-TPCA, is a chemical compound belonging to the class of aromatic carboxylic acids. It is a white to off-white crystalline powder, and is insoluble in water but soluble in organic solvents. P-TPCA is commonly used as a building block in the synthesis of various organic compounds, particularly in the pharmaceutical and chemical industries. It is also used as a starting material for the preparation of liquid crystals and as a key intermediate for the production of dyes and pigments. P-TPCA is known for its high thermal stability and its ability to form stable complexes with metal ions, making it a versatile and valuable chemical in various industrial applications.

InChI:InChI=1/C26H24N2O2S/c1-2-30-23-15-13-20(14-16-23)17-24-25(29)28(19-22-11-7-4-8-12-22)26(31-24)27-18-21-9-5-3-6-10-21/h3-17H,2,18-19H2,1H3/b24-17-,27-26-

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Relevant articles and documents

UV Light Generation and Challenging Photoreactions Enabled by Upconversion in Water

Sensitized triplet-triplet annihilation (sTTA) is the most promising mechanism for pooling the energy of two visible photons, but its applications in solution were so far limited to organic solvents, with a current maximum of the excited-singlet state energy of 3.6 eV. By combining tailor-made iridium complexes with naphthalenes, we demonstrate blue-light driven upconversion in water with unprecedented singlet-state energies approaching 4 eV. The annihilators have outstanding excited-state reactivities enabling challenging photoreductions driven by sTTA. Specifically, we found that an aryl-bromide bond activation can be achieved with blue photons, and we obtained full conversion for the very energy-demanding decomposition of a persistent ammonium compound as typical water pollutant, not only with a cw laser but also with an LED light source. These results provide the first proof-of-concept for the usage of low-power light sources for challenging reactions employing blue-to-UV upconversion in water and pave the way for the further development of sustainable light-harvesting applications.