Description

Sodium Propylparaben is the sodium salt of propylparaben, a widely used synthetic preservative. This compound is valued for its effective antimicrobial activity against a broad spectrum of molds, yeasts, and some bacteria, enhancing product shelf-life and safety. It is a critical ingredient for manufacturers in the cosmetics, personal care, and pharmaceutical industries seeking reliable, water-soluble preservation solutions.

Application

• Cosmetic & Personal Care Formulations: As a primary or secondary preservative in creams, lotions, shampoos, conditioners, and makeup to prevent microbial spoilage.
• Pharmaceutical Products: Used as a preservative in topical ointments, liquid oral preparations, and other non-sterile dosage forms.
• Food Industry Applications: Employed as a food additive (E219) in certain jurisdictions to preserve sauces, pickles, and baked goods, subject to local regulations.
• Industrial Fluids: Preservation of water-based functional fluids, adhesives, and latex paints to inhibit microbial growth.
• Animal Feed & Pet Care: Acts as a preservative in liquid feed supplements and certain pet care products.

Basic Information

Product Name	Sodium Propylparaben
CAS No.	35285-69-9
Molecular Formula	C10H11NaO3
Molecular Weight	202.18 g/mol
Synonyms	Sodium Propyl p-Hydroxybenzoate; Propylparaben Sodium Salt; 4-Hydroxybenzoic Acid Propyl Ester Sodium Salt; Sodium Propyl Parahydroxybenzoate; E219; Nipasol Sodium; Solbrol P Sodium
EINECS	252-488-1

Quality Control

Our Sodium Propylparaben is manufactured under strict quality management systems. It is tested to meet relevant specifications for purity, identity, and performance. Certificates of Analysis (COA) documenting key parameters such as assay, loss on drying, and heavy metals are available for every batch upon request, ensuring traceability and compliance for your applications.

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). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	98.0% - 102.0% (on dried basis)
Loss on Drying	≤ 5.0%
pH (5% Solution)	9.0 - 10.5
Heavy Metals (as Pb)	≤ 10 ppm

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