Description

Starch Acetate CAS NO 9045-28-7 is a chemically modified starch derivative where hydroxyl groups are partially substituted with acetyl groups. This modification significantly enhances its functional properties, making it a versatile ingredient for demanding industrial and food applications. It is primarily valued for its excellent film-forming, binding, and thickening capabilities, as well as its improved resistance to retrogradation and high-temperature processing. Key industries that utilize this product include food manufacturing, pharmaceuticals, textiles, and paper production.

Application

• Food Industry: Used as a thickener, stabilizer, and texturizer in sauces, soups, and frozen foods; acts as a film-forming agent for edible coatings.
• Pharmaceuticals: Serves as a binder and disintegrant in tablet formulations and as a coating agent for controlled-release drug delivery systems.
• Paper & Textile Manufacturing: Employed as a surface sizing agent to improve paper strength and printability, and as a warp sizing agent for yarns.
• Adhesives & Construction: Functions as a biodegradable component in adhesives and as an additive in building materials like gypsum boards.
• Personal Care: Incorporated into cosmetic and personal care products as a viscosity modifier and film former in lotions and hair sprays.

Basic Information

Product Name	Starch Acetate
CAS No.	9045-28-7
Molecular Formula	(C6H7O2(OH)3-x(OCOCH3)x)n
Molecular Weight	Variable (Polymer)
Synonyms	Acetylated Starch; Starch Acetate Ester; Acetate Starch; Acetyl Starch; Modified Starch (Acetylated); E1420 (Food Additive Code); INS 1420; Acetylated Distarch Adipate (related)
EINECS	Contact for details

Quality Control

Our Starch Acetate is manufactured under strict quality management systems. Each batch is tested to ensure it meets precise specifications for parameters such as acetyl content, viscosity, pH, and moisture. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing the results of these quality checks. The product can be supplied to meet various standards, including Food Chemical Codex (FCC) and ISO guidelines, depending on the application 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 product is hygroscopic (moisture-sensitive); therefore, the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can affect performance.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay (Acetyl Content)	1.5% - 4.5% (or as specified)
pH (in solution)	5.0 - 7.5
Loss on Drying	≤ 15.0%
Viscosity (Brookfield)	Contact for details
Residual Solvents	Meets ICH guidelines

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