Description

Acetylenedicarboxylic Acid is a versatile and highly reactive dicarboxylic acid derivative characterized by its alkyne functionality. This compound is a crucial building block in organic synthesis, enabling the construction of complex molecular frameworks through cycloaddition and coupling reactions. It is primarily utilized by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors for developing novel compounds and functional polymers.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of heterocyclic compounds, active pharmaceutical ingredients (APIs), and potential drug candidates.
• Agrochemical Synthesis: Used in creating novel herbicides, fungicides, and plant growth regulators that require specific alkyne-based structures.
• Polymer & Material Science: Acts as a monomer or cross-linking agent for producing specialty polymers, conductive materials, and metal-organic frameworks (MOFs).
• Organic Synthesis Reagent: Employed in Diels-Alder reactions, [2+2] cycloadditions, and as a dienophile for constructing complex organic molecules in R&D laboratories.
• Ligand & Chelating Agent: Functions as a precursor for synthesizing specialized ligands used in catalysis and metal ion sequestration.
• Chemical Research: Utilized in academic and industrial research for exploring new reaction methodologies and synthesizing novel chemical entities.

Basic Information

Item	Detail
Product Name	Acetylenedicarboxylic Acid
CAS No.	142-45-0
Molecular Formula	C4H2O4
Molecular Weight	114.06 g/mol
Synonyms	Acetylenedicarboxylic Acid; Butynedioic Acid; 2-Butynedioic Acid; Acetylenedicarbonic Acid; Propiolic Acid, Carboxy-; Acetylenedicarboxylate; Acetylenedicarboxylic Acid (ACDA)
EINECS	205-536-0

Quality Control

Our Acetylenedicarboxylic Acid is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing to ensure it meets high-purity standards suitable for research and industrial synthesis. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment and are available upon request 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 a controlled room temperature (15-25°C). Due to its hygroscopic and easily oxidized nature, it is recommended to handle the material under an inert atmosphere (e.g., nitrogen or argon) for long-term storage and to minimize exposure to moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	178°C - 185°C (dec.)
Loss on Drying	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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