Description

Butanoic Acid, 2,3-Dioxo-, Methyl Ester (9Ci) is a specialized organic ester of a dioxobutanoic acid, serving as a versatile high-purity chemical intermediate. Its value lies in its reactive diketone and ester functional groups, which are critical for constructing complex molecular frameworks in advanced synthesis. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and fine chemical industries who require precise building blocks for drug discovery and specialty chemical production.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of active pharmaceutical ingredients (APIs), particularly for molecules containing heterocyclic or diketone motifs.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators where its reactive sites allow for structural diversification.
• Fine Chemical Manufacturing: Employed as a precursor for dyes, pigments, and performance chemicals requiring specific diketone functionality.
• Organic Synthesis & Research: A valuable reagent in academic and industrial R&D labs for cyclization reactions, condensation reactions, and the synthesis of complex organic compounds.
• Flavor & Fragrance Industry: Potentially used in the synthesis of specialty aroma chemicals, given its ester group and potential degradation products.
• Polymer Chemistry: Can act as a monomer or cross-linking agent in the synthesis of specialty polymers with unique thermal or mechanical properties.

Basic Information

Product Name	Butanoic Acid, 2,3-Dioxo-, Methyl Ester (9Ci)
CAS No.	86396-16-9
Molecular Formula	C5H6O4
Molecular Weight	130.10 g/mol
Synonyms	Methyl 2,3-dioxobutanoate; Methyl oxalacetate; 2,3-Dioxobutanoic acid methyl ester; Oxaloacetic acid methyl ester; Methyl 2-oxo-3-oxobutanoate; 3-Oxobutanedioic acid dimethyl ester (tautomer); Methyl ketomalonyl; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

We maintain a strict quality management system to ensure the consistency and purity of our chemical intermediates. Every batch of Butanoic Acid, 2,3-Dioxo-, Methyl Ester is analyzed against stringent in-house specifications using advanced analytical techniques such as HPLC, GC, and NMR. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. Recommended storage temperature is between 2°C and 8°C for long-term stability, as the compound may be sensitive to ambient conditions. Keep container tightly sealed when not in use to prevent moisture absorption or contamination.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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