Description

[1,1'-Biphenyl] 3,5-Dicarboxylic Acid Demethyl Ester is a high-purity, functionalized biphenyl derivative serving as a critical advanced organic intermediate. Its value lies in its rigid, conjugated aromatic structure and strategically positioned carboxylic acid ester groups, making it an essential building block for synthesizing complex molecules. This compound is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and materials science industries for creating novel active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, particularly those requiring rigid, biphenyl-based scaffolds for target binding.
• Liquid Crystal & OLED Material Synthesis: Serves as a core building block for creating advanced organic electronic materials, dyes, and pigments due to its conjugated system.
• Agrochemical Active Ingredient Development: Used in research to construct new herbicides, fungicides, and insecticides with enhanced stability and efficacy.
• Metal-Organic Framework (MOF) Ligand: The dicarboxylate functionality makes it a candidate ligand for constructing porous coordination polymers and MOFs for gas storage or catalysis.
• Polymer & Resin Modifier: Incorporated into polymer backbones to enhance thermal stability, rigidity, and chemical resistance of high-performance engineering plastics.
• Cross-coupling Reaction Substrate: Utilized in Suzuki, Heck, and other palladium-catalyzed cross-coupling reactions to create more complex biaryl systems.

Basic Information

Product Name	[1,1'-Biphenyl] 3,5-Dicarboxylic Acid Demethyl Ester
CAS No.	21991-00-4
Molecular Formula	C16H14O4
Molecular Weight	270.28 g/mol
Synonyms	3,5-Biphenyldicarboxylic Acid Dimethyl Ester; Dimethyl 3,5-Biphenyldicarboxylate; Dimethyl [1,1'-Biphenyl]-3,5-dicarboxylate; 3,5-Dicarbomethoxybiphenyl; Biphenyl-3,5-dicarboxylic Acid Dimethyl Ester; NSC 163045; 3,5-Bis(methoxycarbonyl)biphenyl
EINECS	Contact for details

Quality Control

Our [1,1'-Biphenyl] 3,5-Dicarboxylic Acid Demethyl Ester is produced under a strict quality management system. Every batch undergoes rigorous analytical testing including HPLC, NMR, and GC-MS to confirm identity, purity, and the absence of critical impurities. Certificates of Analysis (COA) detailing all specification results are provided and available upon request to support your R&D and regulatory documentation needs.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
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.