Description

3-Formyl-4-Methoxybenzoic Acid is a versatile aromatic aldehyde-carboxylic acid derivative that serves as a critical building block in advanced organic synthesis. Its bifunctional nature, featuring both a formyl and a carboxylic acid group on a methoxy-substituted benzene ring, makes it an indispensable intermediate for creating complex molecular architectures. This compound is primarily sought after by research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for developing active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, particularly for anti-inflammatory and central nervous system (CNS) active compounds.
• Agrochemical Synthesis: Used in the production of advanced herbicides and fungicides, where its aromatic core provides structural diversity.
• Liquid Crystal & OLED Materials: Serves as a starting material for synthesizing photoactive and electroactive molecules used in display technologies.
• Organic Ligand Synthesis: Utilized to create chelating agents and ligands for catalysis and metal-organic frameworks (MOFs).
• Dye & Pigment Manufacturing: Acts as an intermediate for producing high-performance, color-fast dyes and organic pigments.
• Polymer Modification: Employed to introduce functional groups into polymer chains, enhancing material properties like adhesion or UV stability.
• Cross-Coupling Reactions: A valuable substrate in palladium-catalyzed cross-coupling reactions (e.g., Suzuki, Heck) for carbon-carbon bond formation.
• Academic & Contract Research: Essential reagent for methodological development and exploratory chemistry in R&D laboratories.

Basic Information

Product Name	3-Formyl-4-Methoxybenzoic Acid
CAS No.	91420-99-4
Molecular Formula	C9H8O4
Molecular Weight	180.16 g/mol
Synonyms	4-Methoxy-3-formylbenzoic Acid; 3-Carboxy-4-methoxybenzaldehyde; 4-Methoxyisophthalaldehyde-3-carboxylic Acid; 3-Formyl-4-methoxybenzoic acid; 4-Methoxy-3-formyl-benzoic acid; 91420-99-4; 3-Formyl-p-anisic acid
EINECS	Contact for details

Quality Control

Our 3-Formyl-4-Methoxybenzoic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation by FT-IR and NMR spectroscopy, to ensure it meets precise customer specifications and industry standards. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability, consistency, and reliability for your critical processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Due to its sensitivity to oxidation, prolonged storage under an inert atmosphere (e.g., nitrogen or argon) is recommended for optimal long-term stability. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	< 20 ppm

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