Description

Peg-25 Paba is a water-soluble, non-ionic surfactant and UV-absorbing agent formed by the ethoxylation of p-aminobenzoic acid (PABA). This compound is valued for its ability to provide substantive sun protection while simultaneously acting as an effective emulsifier and solubilizer in complex formulations. It is primarily utilized by manufacturers in the personal care, cosmetic, and pharmaceutical industries seeking to develop advanced sunscreen products, moisturizers, and topical preparations that require both functional performance and skin compatibility.

Application

• Broad-Spectrum Sunscreen Formulations: Acts as a primary or secondary UV filter in sunscreens, lotions, and daily wear SPF products.
• After-Sun and Skincare Products: Incorporated into moisturizers, gels, and creams to provide soothing care with continued light protection.
• Color Cosmetics with SPF: Used in foundations, BB creams, and tinted moisturizers to add sun protection benefits without compromising texture.
• Hair Care Products: Applied in leave-in conditioners and styling products to protect hair from UV-induced damage and color fading.
• Pharmaceutical Topicals: Serves as a stabilizing and delivery agent in medicated creams and ointments designed for photosensitive skin conditions.
• Functional Surfactant Systems: Utilized as a co-emulsifier or solubilizer in aqueous systems where its surfactant properties are beneficial.

Basic Information

Product Name	Peg-25 Paba
CAS No.	113010-52-9
Molecular Formula	C14H21NO4 • (C2H4O)n where n~25
Molecular Weight	~1300 g/mol (Average)
Synonyms	PEG-25 PABA; Polyethylene glycol (25) p-aminobenzoate; Ethoxylated PABA; p-Aminobenzoic acid, polyethylene glycol ester (25 EO); Polyoxyethylene (25) p-aminobenzoate; Sunscreen Agent PEG-25 PABA; 2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-(4-aminobenzoyloxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethanol (approximate IUPAC)
EINECS	Contact for details

Quality Control

Our Peg-25 Paba is manufactured under a GMP-compliant quality management system to ensure batch-to-batch consistency and purity suitable for cosmetic and pharmaceutical applications. Each lot is tested against stringent in-house specifications, which include identity confirmation, assay, and critical impurity profiling. A comprehensive Certificate of Analysis (COA) documenting all test results is provided with every shipment to support your regulatory and formulation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep the container tightly sealed when not in use to minimize exposure to moisture and atmospheric contaminants.

Specification

Item	Specification
Appearance	Pale yellow to amber viscous liquid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Ethylene Oxide Units (n)	23 - 27
Water Content (KF)	≤ 1.0%
pH (5% solution)	5.0 - 7.0
Heavy Metals (as Pb)	≤ 10 ppm

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