Description

8-Chloro-4-Oxo-4H-Chromene-3-Carbaldehyde is a versatile chromene derivative and a key synthetic intermediate in organic chemistry. This compound matters for its role as a crucial building block in the development of more complex heterocyclic molecules and active pharmaceutical ingredients (APIs). Industrial researchers and fine chemical manufacturers in the pharmaceutical, agrochemical, and material science sectors need it for advanced synthesis and R&D programs.

Application

• Pharmaceutical Intermediate: Serves as a critical precursor in the synthesis of novel drug candidates, particularly those with chromene or benzopyran scaffolds.
• Agrochemical Synthesis: Used in the research and development of new pesticides and herbicides, leveraging its reactive aldehyde and chloro functional groups.
• Organic Synthesis Building Block: A valuable starting material for constructing complex heterocyclic compounds, including fused ring systems, via various condensation and cyclization reactions.
• Material Science Research: Investigated for the development of organic electronic materials, dyes, and fluorescent markers due to its conjugated chromophore structure.
• Academic & R&D Laboratories: Employed in methodological studies and as a reference standard in chemical research exploring new synthetic pathways.

Basic Information

Product Name	8-Chloro-4-Oxo-4H-Chromene-3-Carbaldehyde
CAS No.	64481-09-0
Molecular Formula	C10H5ClO3
Molecular Weight	208.60 g/mol
Synonyms	8-Chloro-4-oxo-4H-1-benzopyran-3-carboxaldehyde; 8-Chloro-3-formyl-4H-chromen-4-one; 8-Chloro-4-oxochromene-3-carbaldehyde; 3-Formyl-8-chloro-4H-chromen-4-one; 8-Chloro-4-oxo-4H-chromene-3-carboxaldehyde; 8-Chloro-3-carbaldehyde-4-chromone
EINECS	Contact for details

Quality Control

Our 8-Chloro-4-Oxo-4H-Chromene-3-Carbaldehyde is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets the high standards required for research and industrial synthesis. Certificates of Analysis (COA) detailing all specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This compound is easily oxidized and should be handled under an inert atmosphere for long-term storage or when opening sealed containers.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.