Description

p-Hydroxybenzoic Acid Potassium Salt is the potassium salt derivative of para-hydroxybenzoic acid, a key compound in the benzoate family. This product is valued for its enhanced solubility and stability compared to its acid form, making it a versatile intermediate and preservative agent. It is primarily required by manufacturers in the pharmaceutical, cosmetic, and food industries for synthesis and formulation purposes.

Application

• Pharmaceutical Intermediate: Used in the synthesis of various active pharmaceutical ingredients (APIs) and parabens for topical formulations.
• Cosmetic Preservative: Acts as a stabilizing agent in creams, lotions, and personal care products to inhibit microbial growth.
• Food Additive: Employed as a preservative (E217) in certain food and beverage applications to extend shelf life.
• Chemical Synthesis: Serves as a key building block in organic chemistry for producing dyes, fragrances, and other fine chemicals.
• Laboratory Research: Utilized as a standard or reagent in analytical and biochemical research settings.

Basic Information

Product Name	p-Hydroxybenzoic Acid Potassium Salt
CAS No.	16782-08-4
Molecular Formula	C7H5KO3
Molecular Weight	176.21 g/mol
Synonyms	Potassium 4-hydroxybenzoate; Potassium p-hydroxybenzoate; E217; 4-Hydroxybenzoic acid potassium salt; PHBA-K; Paraben potassium salt; Benzoic acid, 4-hydroxy-, potassium salt
EINECS	240-858-3

Quality Control

Our p-Hydroxybenzoic Acid Potassium Salt is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets high-purity standards suitable for pharmaceutical and food-grade applications. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and compliance.

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). The product is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 99.0%
Loss on Drying	≤ 1.0%
pH (5% Solution)	7.5 - 9.5
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1%

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