Description

Acetic Propionic Anhydride is a versatile mixed anhydride of acetic and propionic acids, serving as a key acylating and esterifying agent in organic synthesis. Its primary commercial value lies in its ability to introduce both acetyl and propionyl groups, offering a unique reactivity profile for fine chemical and pharmaceutical manufacturing. This compound is essential for researchers and production chemists in the pharmaceutical, agrochemical, and specialty chemical industries seeking efficient and selective acylation pathways.

Application

• Pharmaceutical Intermediate Synthesis: Acylation agent in the production of active pharmaceutical ingredients (APIs) and prodrugs.
• Agrochemical Manufacturing: Key reagent for synthesizing herbicides, fungicides, and plant growth regulators.
• Perfume and Flavor Industry: Used in the esterification process to create specific acetate and propionate esters for fragrances and flavors.
• Polymer Chemistry: Acts as a monomer or modifying agent in the synthesis of specialized polyesters and other polymeric materials.
• Organic Synthesis Reagent: Employed in laboratory-scale and pilot-scale reactions for the selective introduction of acyl groups under mild conditions.
• Dye and Pigment Production: Intermediate in the synthesis of complex organic dyes and colorants.

Basic Information

Product Name	Acetic Propionic Anhydride
CAS No.	13080-96-1
Molecular Formula	C5H8O3
Molecular Weight	116.12 g/mol
Synonyms	Acetic Acid Propanoic Anhydride; Acetyl Propionyl Anhydride; Propanoic Acid Acetic Anhydride; Mixed Acetic Propionic Anhydride; Acetic-Propionic Anhydride; Acetyl Propionate Anhydride; Propionyl Acetate Anhydride
EINECS	235-975-0

Quality Control

Our Acetic Propionic Anhydride is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including assay, impurity profiling, and identity confirmation, to ensure it meets the high standards required for industrial and research applications. Certificates of Analysis (COA) detailing purity, physical properties, and safety data are provided with every shipment to guarantee traceability and batch-to-batch consistency.

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). This product is hygroscopic (moisture-sensitive) and should be kept under an inert atmosphere (e.g., nitrogen) after opening to prevent hydrolysis. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Acetic Acid Content	≤ 1.0%
Propionic Acid Content	≤ 1.0%

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