Description

Poly-L-Glutamic Acid Sodium Salt is a biodegradable, water-soluble anionic polyamino acid derived from the natural amino acid glutamic acid. This high-purity polymer is valued for its exceptional moisture retention, film-forming, and chelating properties, making it a versatile functional ingredient. It is essential for manufacturers in the cosmetics, pharmaceuticals, and biomedical research sectors seeking advanced, biocompatible materials for high-performance formulations.

Application

• Cosmetics & Skincare: Acts as a powerful humectant and film-forming agent in moisturizers, serums, and masks to enhance skin hydration and texture.
• Pharmaceuticals & Drug Delivery: Used as a biodegradable carrier or excipient in controlled-release systems, hydrogels, and tissue engineering scaffolds.
• Biomedical Research: Serves as a model compound for studying polyelectrolyte behavior, biocompatibility, and as a substrate in enzymatic assays.
• Food Industry (Potential): Investigated for use as a thickener, stabilizer, or dietary fiber supplement in functional food products.
• Agriculture: Explored as a component in superabsorbent polymers for water retention in soils or as a seed coating material.
• Industrial Applications: Functions as a dispersant, viscosity modifier, or green chelating agent in various water-based formulations.

Basic Information

Product Name	Poly-L-Glutamic Acid Sodium Salt
CAS No.	26247-79-0
Molecular Formula	(C5H7NO4Na)n
Molecular Weight	Variable (Polymer)
Synonyms	Sodium Polyglutamate; Poly(sodium L-glutamate); PGA-Na; L-Glutamic acid homopolymer sodium salt; γ-Polyglutamic acid sodium salt; Sodium Poly-α-L-glutamate; Natrium polyglutamat; (S)-2-Aminopentanedioic acid homopolymer sodium salt
EINECS	Contact for details

Quality Control

Our Poly-L-Glutamic Acid Sodium Salt is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing to ensure consistent purity, molecular weight distribution, and performance. A detailed Certificate of Analysis (COA) is provided, confirming compliance with agreed specifications. We support customer audits and can tailor quality parameters to meet specific GMP, ISO, or research-grade requirements.

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). This material is hygroscopic (moisture-sensitive); ensure the container is sealed after each use to prevent absorption of atmospheric moisture, which may affect properties.

Specification

Item	Specification
Appearance	White to off-white powder or fibrous solid
Identification (IR)	Conforms to structure
Assay (on dried basis)	≥ 95.0%
pH (1% Solution)	6.0 - 8.0
Loss on Drying	≤ 8.0 %
Residue on Ignition (Sulfated Ash)	10.0 - 20.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Viscosity (Specified Concentration)	Contact for details
Molecular Weight (Average)	Customizable (e.g., 10kDa - 1,000kDa)

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