Description

[1,1':2',1''-Terphenyl]-4,4',4'',5'-Tetracarboxylic Acid (9Ci) CAS NO 623904-16-5 is a high-purity, multi-functional aromatic carboxylic acid derivative, serving as a critical advanced intermediate in sophisticated organic synthesis. Its value lies in its rigid, planar terphenyl backbone and multiple reactive carboxyl groups, enabling the construction of complex molecular architectures with precise electronic and structural properties. This compound is essential for researchers and manufacturers in the fields of organic electronics, advanced materials science, and pharmaceutical development who require a reliable source of high-quality building blocks.

Application

• Organic Semiconductor Precursor: A key monomer for synthesizing novel organic light-emitting diodes (OLEDs), perovskite solar cells, and other optoelectronic materials.
• Metal-Organic Framework (MOF) Synthesis: Acts as a versatile organic linker for constructing porous MOFs with potential applications in gas storage, separation, and catalysis.
• Pharmaceutical Intermediate: Used in the research and development of complex active pharmaceutical ingredients (APIs) and drug candidates.
• Liquid Crystal & Polymer Chemistry: Serves as a building block for creating rigid-rod polymers and liquid crystalline materials with tailored properties.
• Dye & Pigment Synthesis: Employed in the production of high-performance dyes and pigments for specialized applications.
• Academic & Industrial R&D: A valuable reagent for exploratory chemistry in universities and corporate research laboratories.

Basic Information

Product Name	[1,1':2',1''-Terphenyl]-4,4',4'',5'-Tetracarboxylic Acid (9Ci)
CAS No.	623904-16-5
Molecular Formula	C28H18O8
Molecular Weight	482.44 g/mol
Synonyms	1,1':2',1''-Terphenyl-4,4',4'',5'-tetracarboxylic acid; 4,4',4'',5'-Terphenyltetracarboxylic Acid; m-Terphenyl-4,4',4'',5'-tetracarboxylic Acid; [1,1':2',1''-Terphenyl]-4,4',4'',5'-tetracarboxylic acid; 4,4',4'',5'-Tetracarboxy-m-terphenyl; 5'-Carboxy[1,1':2',1''-terphenyl]-4,4',4''-tricarboxylic acid
EINECS	Contact for details

Quality Control

Our [1,1':2',1''-Terphenyl]-4,4',4'',5'-Tetracarboxylic Acid is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and FTIR, to ensure high chemical purity and structural integrity. Certificates of Analysis (COA) detailing batch-specific results are available upon request. We are committed to meeting the stringent requirements of research and industrial applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed in a dry environment to prevent degradation. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.