Description

Propanoic Acid, 2-Oxo-, Anhydride With Acetic Acid (9Ci) is a specialized mixed anhydride of pyruvic acid and acetic acid. This reactive intermediate is crucial for controlled acylation and esterification reactions in advanced organic synthesis. It is primarily sought by research and development laboratories and fine chemical manufacturers in the pharmaceutical and agrochemical sectors for the production of active ingredients and novel compounds.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for introducing pyruvate-derived moieties.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators requiring specific acylating agents.
• Peptide Chemistry: Serves as a coupling reagent or protecting group agent in the synthesis of complex peptides and biomolecules.
• Fine Chemical Production: Employed in the manufacture of specialty chemicals, flavors, fragrances, and advanced materials.
• Academic & Industrial Research: A valuable reagent for methodological development and exploratory synthesis in organic chemistry.

Basic Information

Product Name	Propanoic Acid, 2-Oxo-, Anhydride With Acetic Acid (9Ci)
CAS No.	108899-52-1
Molecular Formula	C5H6O5
Molecular Weight	146.10 g/mol
Synonyms	Acetic Pyruvic Anhydride; Pyruvic Acetic Anhydride; 2-Oxopropanoic Acid Anhydride with Acetic Acid; Acetic Acid, Anhydride with Pyruvic Acid; Mixed Anhydride of Pyruvic Acid and Acetic Acid; 2-Oxopropionic Acid Acetic Anhydride
EINECS	Contact for details

Quality Control

Our Propanoic Acid, 2-Oxo-, Anhydride With Acetic Acid (9Ci) is produced and handled under a strict quality management system. Each batch undergoes comprehensive analytical testing, including assay and impurity profiling by chromatographic methods, to ensure high purity and batch-to-batch consistency suitable for research and synthesis applications. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place. Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent decomposition. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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