Description

Diphenylmethane-4-Carboxylic Acid is a key aromatic carboxylic acid building block, valued for its rigid biphenyl structure and reactive carboxyl group. This compound is essential for synthesizing advanced materials and fine chemicals where precise molecular architecture is required. It is primarily sought by research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries for developing new active ingredients and high-performance additives.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of non-steroidal anti-inflammatory drugs (NSAIDs) and other active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the production of advanced herbicides and fungicides, leveraging its stable aromatic core.
• Liquid Crystal & OLED Materials: Serves as a foundational unit for creating charge-transport materials and mesogens in display technologies.
• Polymer Modifier: Incorporated into polyesters and polyamides to enhance thermal stability and mechanical properties.
• Organic Synthesis Building Block: Employed in Suzuki coupling and other cross-coupling reactions to construct complex biphenyl systems.
• Dye & Pigment Manufacturing: Acts as an intermediate for producing high-value azo and triarylmethane dyes.

Basic Information

Product Name	Diphenylmethane-4-Carboxylic Acid
CAS No.	620-86-0
Molecular Formula	C14H12O2
Molecular Weight	212.24 g/mol
Synonyms	4-Benzylbenzoic Acid; (4-Carboxyphenyl)phenylmethane; p-(Phenylmethyl)benzoic Acid; 4-(Phenylmethyl)benzoic Acid; Diphenyl-4-carboxylic Acid; NSC 404080; 4-Carboxydiphenylmethane; α-Phenyl-p-toluic Acid
EINECS	210-659-6

Quality Control

Our Diphenylmethane-4-Carboxylic Acid is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting specifications for research and industrial use. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents, strong bases, and heat sources.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥98.0%
Melting Point	168°C - 172°C
Loss on Drying	≤0.5%
Residue on Ignition	≤0.1%

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