Description

Alginic Sodium Diester is a chemically modified derivative of sodium alginate, known for its enhanced stability and specific functional properties. This compound is valued for its ability to act as a versatile thickener, stabilizer, and gelling agent in demanding formulations. It serves as a critical functional ingredient for manufacturers in the pharmaceutical, food technology, and cosmetic industries seeking reliable textural control and product consistency.

Application

• Pharmaceutical Formulations: Used as a binder, disintegrant, and controlled-release matrix agent in tablet and capsule manufacturing.
• Food Industry: Functions as a stabilizer and thickener in dairy products, desserts, sauces, and bakery fillings to improve texture and shelf-life.
• Cosmetics & Personal Care: Employed as a viscosity modifier and film-forming agent in creams, lotions, and hair care products.
• Technical Applications: Acts as a suspending agent and binder in ceramic glazes, welding rod coatings, and textile printing pastes.
• Biomedical Research: Utilized in cell encapsulation, tissue engineering scaffolds, and wound dressings due to its biocompatible gelling properties.

Basic Information

Product Name	Alginic Sodium Diester
CAS No.	9005-40-7
Molecular Formula	(C6H7O6Na)n
Molecular Weight	~10,000 - 600,000 g/mol (Polymer)
Synonyms	Sodium Alginate Diester; Propylene Glycol Alginate (PGA); Alginic Acid, Diester with 1,2-Propanediol, Sodium Salt; E405; Kelcoloid; Protanal; Manugel DMB; Kimica Algin I-3
EINECS	232-680-1

Quality Control

Our Alginic Sodium Diester is produced under a strict quality management system. Depending on the grade, it can be manufactured to meet relevant standards such as FCC (Food Chemicals Codex), USP-NF (United States Pharmacopeia), or industrial specifications. Every batch undergoes rigorous analytical testing to ensure identity, purity, and performance consistency. A comprehensive Certificate of Analysis (COA) is provided with each shipment.

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); the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	White to yellowish fibrous or granular powder
Identification (IR)	Conforms
Assay (as PGA)	Min. 85.0%
pH (1% Solution)	3.5 - 6.0
Loss on Drying	Max. 20.0%
Viscosity (1% Solution)	Contact for details
Heavy Metals (as Pb)	Max. 20 ppm
Residual Solvents	Complies with ICH guidelines

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