Description

γ-Cyclodextrin is a cyclic oligosaccharide composed of eight glucose units linked by α-1,4 glycosidic bonds, forming a toroidal structure with a hydrophilic exterior and a hydrophobic internal cavity. This unique molecular architecture enables it to form inclusion complexes with a wide variety of guest molecules, enhancing their solubility, stability, and bioavailability. It is a critical functional excipient and delivery agent for industries including pharmaceuticals, food and beverage, cosmetics, and agrochemicals.

Application

• Pharmaceutical Formulations: As a solubility enhancer and stabilizer for poorly water-soluble active pharmaceutical ingredients (APIs), improving drug delivery and efficacy.
• Food & Flavor Industry: For the encapsulation and protection of sensitive flavors, fragrances, and nutrients (e.g., vitamins, fatty acids) against oxidation, light, and heat.
• Cosmetics & Personal Care: To stabilize active ingredients, control odor release, and enhance the solubility of compounds in creams, lotions, and serums.
• Analytical Chemistry & Separation Science: Used as a chiral stationary phase in chromatography for the enantiomeric separation of racemic mixtures.
• Agrochemicals: For the controlled release and improved stability of pesticides and herbicides, reducing environmental impact.
• Chemical Research & Synthesis: Acts as a molecular reactor or catalyst in supramolecular chemistry and green synthesis applications.

Basic Information

Product Name	γ-Cyclodextrin
CAS No.	17465-86-0
Molecular Formula	C48H80O40
Molecular Weight	1297.12 g/mol
Synonyms	γ-Cyclodextrin; Cyclooctaamylose; γ-CD; Cyclomaltooctaose; Schardinger γ-dextrin; γ-CD; Gamma Cyclodextrin; Cyclooctaglucan
EINECS	241-482-4

Quality Control

Our γ-Cyclodextrin is manufactured under strict quality management systems. We offer grades suitable for various applications, including food (FCC) and pharmaceutical (USP/EP) standards. Each batch undergoes rigorous analytical testing to ensure identity, purity, and performance. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profiles, and microbiological data is provided with every 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 product is hygroscopic (moisture-sensitive). Keep the container tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and flow properties.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 12.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Microbiological Total Plate Count	≤ 1000 cfu/g
Specific Rotation [α]²⁰D	+174° to +180°

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