Description

Diacetin is a versatile glycerol ester, specifically the diacetate ester of glycerol, valued for its excellent solvent properties and plasticizing effects. This compound is crucial for formulators seeking a high-boiling, water-miscible solvent that can also act as a humectant and softening agent. Key industries that utilize Diacetin CAS NO 25395-31-7 include polymer manufacturing, food and flavor processing, and personal care product development.

Application

• Polymer & Resin Plasticizer: Used as a secondary plasticizer and solvent in cellulose-based plastics (e.g., cellulose acetate) and certain synthetic resins to improve flexibility and processing.
• Food & Flavor Industry Solvent: Serves as a solvent and carrier for food-grade flavors and fragrances due to its favorable safety profile and miscibility.
• Cosmetics & Personal Care: Functions as a humectant and emollient in creams, lotions, and hair care products to retain moisture and improve texture.
• Chemical Intermediate: Employed in organic synthesis for the production of more complex glycerol esters and other specialty chemicals.
• Tobacco Processing: Acts as a humectant and softening agent in tobacco products to control moisture content and enhance pliability.
• Adhesive & Ink Formulation: Used as a high-boiling point solvent in specialty adhesives and printing inks to control drying time and viscosity.

Basic Information

Product Name	Diacetin
CAS No.	25395-31-7
Molecular Formula	C7H12O5
Molecular Weight	176.17 g/mol
Synonyms	Glycerol Diacetate; 1,2-Diacetin; 1,2-Diacetylglycerol; Glyceryl Diacetate; Diacetyl Glycerol; Glycerin Diacetate; 2,3-Dihydroxypropyl acetate (acetate); EINECS 246-941-2
EINECS	246-941-2

Quality Control

Our Diacetin is produced and tested under a stringent quality management system to ensure batch-to-batch consistency and reliability. We offer various grades, including technical and food-grade specifications, with quality parameters tailored to your application needs. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after initial use to prevent absorption of atmospheric moisture, which can affect product quality.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Acidity (as Acetic Acid)	≤ 0.1%
Specific Gravity (20°C)	1.18 - 1.20
Refractive Index (20°C)	1.43 - 1.44

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