Description

Propanedioyl Dichloride, Oxo- (9Ci) is a highly reactive acid chloride derivative of malonic acid, serving as a critical building block in advanced organic synthesis. Its value lies in its ability to introduce the malonyl or acyl chloride functional group with high efficiency, enabling the construction of complex molecular architectures. This compound is essential for research chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries who require precise and reliable intermediates for creating active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for molecules containing β-keto ester or malonate motifs.
• Agrochemical Synthesis: Used in the manufacture of herbicides, fungicides, and plant growth regulators that incorporate malonate-derived structures.
• Polymer Chemistry: Acts as a monomer or cross-linking agent in the production of specialty polymers, polyesters, and coatings.
• Organic Synthesis Reagent: Employed in Friedel-Crafts acylation, Claisen condensations, and other reactions to form carbon-carbon bonds.
• Dye and Pigment Manufacturing: Intermediate in the synthesis of complex organic dyes and pigments.
• Chemical Research & Development: A versatile reagent in academic and industrial R&D labs for exploring new synthetic pathways and novel compounds.

Basic Information

Item	Detail
Product Name	Propanedioyl Dichloride, Oxo- (9Ci)
CAS No.	172352-27-1
Molecular Formula	C3H2Cl2O2
Molecular Weight	140.95 g/mol
Synonyms	Oxomalonyl Dichloride; Ketomalonyl Dichloride; Mesoxalyl Dichloride; Dihydroxymalonyl Dichloride; Propanedioyl dichloride, 2-oxo-; 2-Oxopropanedioyl dichloride; Oxobutanedioyl dichloride
EINECS	Contact for details

Quality Control

Our Propanedioyl Dichloride, Oxo- is produced and handled under strict quality management protocols. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide full traceability and Certificates of Analysis (COA) are available for all shipments, detailing key parameters such as assay and impurity profiles. Our quality system is designed to meet the stringent requirements of GMP and ISO standards for chemical manufacturing.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic and moisture-sensitive nature, the container must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening. Keep away from strong bases, alcohols, and water.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Purity (GC)	≥ 96.0%
Water Content (KF)	≤ 0.5%

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