Description

Stearoyl Dextran is a chemically modified polysaccharide derivative where stearic acid is covalently linked to a dextran backbone. This compound matters as a versatile amphiphilic polymer, combining the hydrophilic properties of dextran with the hydrophobic character of a long-chain fatty acid. It is primarily needed by researchers and formulators in the pharmaceutical, biomedical, and cosmetic industries for applications requiring biocompatible emulsification, stabilization, or controlled release.

Application

• Pharmaceutical Excipient: Used as a stabilizer, emulsifier, or carrier in drug delivery systems, including microspheres and nanoparticles for controlled release.
• Biomedical Research: Serves as a model amphiphilic polymer for studying self-assembly, micelle formation, and interactions with biological membranes.
• Cosmetic Formulations: Acts as a texture enhancer, emulsifier, or film-forming agent in creams, lotions, and other personal care products.
• Surface Modification Agent: Used to modify the surface properties of materials to improve biocompatibility or reduce protein adsorption.
• Diagnostic Reagents: Potential use in the formulation of contrast agents or as a component in diagnostic test kits.
• Food-Grade Applications (Special Grades): Can be utilized as an emulsifier or stabilizer in specific food systems where a modified dextran is acceptable.

Basic Information

Product Name	Stearoyl Dextran
CAS No.	55965-51-0
Molecular Formula	Contact for details
Molecular Weight	Variable (depends on dextran chain length and degree of substitution)
Synonyms	Dextran stearate; Stearic acid dextran ester; Dextran monostearate; Stearoylated dextran; Dextran, stearoyl deriv.; Poly(dextran-g-stearic acid); Fatty acid-modified dextran
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure batch-to-batch consistency and compliance with relevant standards. Key parameters monitored include the degree of substitution (DS), molecular weight distribution, and purity. Certificates of Analysis (COA) detailing specific test results are available upon request. We can tailor specifications to meet research-grade or cGMP-grade requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed in a dry environment to prevent moisture absorption, which can affect product performance. For long-term storage, consider using a desiccant.

Specification

Item	Specification
Appearance	White to off-white powder or solid
Identification (IR)	Conforms to structure
Assay (Degree of Substitution)	As per customer requirement (e.g., 0.01 - 0.2)
Dextran Backbone MW	Specified range (e.g., 10kDa, 40kDa, 70kDa)
Loss on Drying	≤ 5.0 %
Residue on Ignition	≤ 1.0 %
Heavy Metals	≤ 20 ppm
Microbial Limits	As per application need

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