Description

Croconic Acid is a unique five-membered carbon ring compound, also known as 4,5-dihydroxy-4-cyclopentene-1,2,3-trione. This specialty organic acid is valued for its distinct chemical structure and properties, making it a versatile intermediate for advanced synthesis. It is primarily sought by research institutions and industrial manufacturers in the fine chemical, pharmaceutical, and material science sectors for developing novel compounds and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of novel active pharmaceutical ingredients (APIs) and complex heterocyclic compounds.
• Coordination Chemistry & Ligand Synthesis: Used to create chelating ligands for metal complexes in catalysis and material science applications.
• Organic Electronic Materials: Investigated as a precursor for organic semiconductors and conductive polymers due to its electron-accepting properties.
• Dye & Pigment Research: Acts as a core structure for developing new classes of organic dyes and colorants.
• Analytical Chemistry: Employed as a reagent or standard in specific analytical methodologies.
• Academic & Industrial R&D: Utilized in fundamental chemical research to explore new reactions and synthesize novel molecular architectures.

Basic Information

Product Name	Croconic Acid
CAS No.	488-86-8
Molecular Formula	C5H2O5
Molecular Weight	142.07 g/mol
Synonyms	4,5-Dihydroxy-4-cyclopentene-1,2,3-trione; 1,2,3-Trihydroxycyclopent-4-ene-1,2,3-trione; Croconic acid; Croconate; 1,2,3-Trihydroxycyclopent-4-ene-1,2,3-trione; 4-Cyclopentene-1,2,3-trione, 4,5-dihydroxy-
EINECS	207-672-5

Quality Control

Our Croconic Acid is produced and handled under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide full traceability and support our products with a Certificate of Analysis (COA), detailing key specifications such as assay and impurity profiles. Certificates are available upon request to meet your quality assurance and regulatory documentation needs.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can affect product quality and stability.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.1%

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