Description

3,4-Dihydroxybenzoic Acid Monopotassium Salt is a high-purity organic salt derivative of protocatechuic acid, valued for its stability and water solubility. This compound serves as a critical intermediate and functional ingredient in advanced research and industrial synthesis. It is essential for manufacturers and researchers in the pharmaceutical, cosmetic, and specialty chemical sectors seeking reliable, high-quality raw materials.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs), particularly those with antioxidant or anti-inflammatory properties.
• Cosmetic & Personal Care: Functions as a stabilizing antioxidant and a chelating agent in skincare formulations to enhance product shelf-life.
• Biochemical Research: Employed as a substrate or standard in enzymatic studies and analytical chemistry for its defined phenolic structure.
• Food & Beverage (as a specialty additive): Potential use as a preservative or antioxidant in niche applications, subject to regulatory approval.
• Chemical Synthesis: Acts as a versatile building block for producing more complex organic molecules, dyes, and polymers.

Basic Information

Product Name	3,4-Dihydroxybenzoic Acid Monopotassium Salt
CAS No.	91753-30-9
Molecular Formula	C7H5KO4
Molecular Weight	192.21 g/mol
Synonyms	Protocatechuic Acid Monopotassium Salt; Potassium 3,4-Dihydroxybenzoate; 3,4-Dihydroxybenzoic Acid Potassium Salt; 4-Carboxy-1,2-dihydroxybenzene Monopotassium Salt; PCA Monopotassium Salt
EINECS	Contact for details

Quality Control

Our 3,4-Dihydroxybenzoic Acid Monopotassium Salt is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for research and industrial use. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is light-sensitive (store away from light) and easily oxidized (store under inert atmosphere); ensure containers are sealed under an inert atmosphere when appropriate and kept away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition (Sulfated Ash)	Conforms

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