Description

Starch, 2-Hydroxypropyl Ether, Polymer With (Chloromethyl)Oxirane is a chemically modified starch derivative, specifically a cross-linked hydroxypropyl starch, designed to offer superior stability and performance compared to native starches. This modification enhances its functionality as a versatile rheology modifier, binder, and film-forming agent in demanding industrial and pharmaceutical applications. It is essential for formulators in the pharmaceutical, food, adhesive, and paper industries seeking consistent, high-performance excipients and additives.

Application

• Pharmaceutical Tableting & Capsule Formulation: Acts as a superior binder and disintegrant in solid dosage forms, improving tablet hardness and dissolution profiles.
• Controlled Drug Delivery Systems: Utilized as a matrix-forming polymer in sustained-release and targeted drug delivery applications due to its modified solubility and swelling properties.
• Food Industry (as a permitted additive): Functions as a thickener, stabilizer, and texturizing agent in sauces, dressings, and low-pH food products where native starches would break down.
• Adhesive & Binding Formulations: Serves as a key component in water-based adhesives, corrugated board, and paper coatings, providing enhanced wet tack and binding strength.
• Personal Care & Cosmetics: Employed as a viscosity modifier, emulsion stabilizer, and texture enhancer in lotions, creams, and deodorants.
• Textile & Warp Sizing: Used in yarn sizing to reduce breakage during weaving, offering improved film flexibility and easy desizing.
• Biomedical & Wound Care: Investigated for use in hydrogel dressings and biocompatible scaffolds due to its modified polymer structure.

Basic Information

Product Name	Starch, 2-Hydroxypropyl Ether, Polymer With (Chloromethyl)Oxirane
CAS No.	68412-87-3
Molecular Formula	(C6H10O5)n modified
Molecular Weight	Polymer (Variable)
Synonyms	Hydroxypropyl Starch Ether, Cross-linked; Hydroxypropyl Starch, Cross-linked with Epichlorohydrin; 2-Hydroxypropyl Starch Ether, Polymer with (Chloromethyl)Oxirane; Cross-linked Hydroxypropyl Starch; Modified Starch 68412-87-3; HPS-E; Insoluble Hydroxypropyl Starch; EPI-Crosslinked Hydroxypropyl Starch
EINECS	Contact for details

Quality Control

Our Starch, 2-Hydroxypropyl Ether, Polymer With (Chloromethyl)Oxirane is manufactured under a strict quality management system. Each batch is tested to ensure it meets precise specifications for substitution degree, viscosity, pH, and residual solvents. Certificates of Analysis (COA) documenting purity and performance parameters are available for every shipment. Production can be aligned with cGMP guidelines for pharmaceutical applications upon request.

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 product is hygroscopic (moisture-sensitive). Keep the container tightly sealed to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
pH (1% slurry)	5.0 - 8.0
Loss on Drying	≤ 10.0 %
Residue on Ignition (Ash)	≤ 0.5 %
Hydroxypropyl Content (Degree of Substitution)	Contact for details
Viscosity (Brookfield, specified concentration)	Contact for details
Heavy Metals (as Pb)	≤ 10 ppm

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