Description

Potassium Propyl 4-Hydroxybenzoate is the potassium salt of propylparaben, a widely used synthetic preservative. This compound is valued for its effective antimicrobial properties against a broad spectrum of molds, yeasts, and bacteria, making it a critical component for product stability and shelf-life extension. It is primarily utilized by manufacturers in the cosmetic, personal care, pharmaceutical, and food industries where reliable, water-soluble preservation is required.

Application

• Cosmetic & Personal Care Formulations: Acts as a preservative in creams, lotions, shampoos, conditioners, and other water-based products to prevent microbial spoilage.
• Pharmaceutical Products: Used as an antimicrobial agent in topical ointments, liquid preparations, and other non-sterile dosage forms.
• Food & Beverage Industry: Employed as a food additive (E217) in certain applications where its antimicrobial action is needed, subject to regional regulatory approvals.
• Industrial Applications: Serves as a preservative in water-based functional fluids, adhesives, and other industrial products susceptible to microbial degradation.

Basic Information

Product Name	Potassium Propyl 4-Hydroxybenzoate
CAS No.	84930-16-5
Molecular Formula	C10H11KO3
Molecular Weight	218.29 g/mol
Synonyms	Potassium Propylparaben; Propylparaben Potassium Salt; Potassium 4-(Propoxycarbonyl)phenolate; E217; 4-Hydroxybenzoic Acid Propyl Ester Potassium Salt; Propyl p-Hydroxybenzoate Potassium Salt; Nipasol Potassium
EINECS	284-536-2

Quality Control

Our Potassium Propyl 4-Hydroxybenzoate is manufactured under a cGMP-compliant quality management system. Every batch undergoes rigorous analytical testing to ensure it meets stringent specifications for identity, purity, and composition. Certificates of Analysis (COA) detailing results for assay, related substances, and other critical parameters are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature. This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture which can lead to caking or degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	98.0% - 102.0% (on anhydrous basis)
pH (5% Solution)	8.0 - 10.0
Water (Karl Fischer)	≤ 5.0%
Heavy Metals	≤ 10 ppm

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