Description

3-Formyl-4-Hydroxybenzoic Acid is a versatile aromatic aldehyde-carboxylic acid derivative that serves as a critical multifunctional building block in advanced organic synthesis. Its unique structure, featuring both formyl and phenolic hydroxyl groups ortho to a carboxylic acid, enables its use in the preparation of complex molecules, dyes, and functional materials. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop novel compounds and fine chemicals.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds with salicylaldehyde-like pharmacophores.
• Agrochemical Synthesis: Building block for creating herbicides, fungicides, and plant growth regulators that require a phenolic aldehyde moiety.
• Dye and Pigment Manufacturing: Used in the production of complex organic dyes, colorants, and optical brighteners.
• Ligand and Chelating Agent Precursor: Serves as a starting material for synthesizing Schiff base ligands used in catalysis and metal complexation.
• Polymer and Resin Modifier: Incorporated into polymer chains to introduce cross-linking sites, UV-absorbing properties, or enhanced adhesion.
• Fine Chemical and Flavor/Fragrance Intermediate: Utilized in multi-step syntheses of complex aroma chemicals and other high-value specialty compounds.

Basic Information

Product Name	3-Formyl-4-Hydroxybenzoic Acid
CAS No.	584-87-2
Molecular Formula	C8H6O4
Molecular Weight	166.13 g/mol
Synonyms	4-Hydroxy-3-formylbenzoic Acid; 5-Formylsalicylic Acid; 3-Carboxy-4-hydroxybenzaldehyde; 4-Hydroxyisophthalaldehydic Acid; 3-Aldehydo-4-hydroxybenzoic Acid; 5-Carboxy-2-hydroxybenzaldehyde; 2-Hydroxy-5-carboxybenzaldehyde
EINECS	209-540-8

Quality Control

Our 3-Formyl-4-Hydroxybenzoic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation by IR and NMR spectroscopy, to ensure it meets precise specifications. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance with your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at 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	Off-white to pale yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	245 - 250 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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