Description

4H-Pyran-2-Carbonyl Chloride, 4-Oxo- (9Ci) is a versatile and highly reactive organic acid chloride derivative of 4-oxo-4H-pyran-2-carboxylic acid. This compound serves as a critical building block in advanced organic synthesis, enabling the efficient introduction of the 4-oxo-4H-pyran-2-carbonyl moiety into target molecules. It is primarily utilized by pharmaceutical researchers and fine chemical manufacturers engaged in the development of novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediates: Key precursor in the synthesis of complex heterocyclic compounds with potential biological activity.
• Agrochemical Research: Building block for developing new active ingredients in crop protection and pest management.
• Material Science: Used in the creation of specialized polymers and organic electronic materials.
• Dye & Pigment Synthesis: Intermediate for producing novel chromophores and functional dyes.
• Chemical Biology: Employed as a coupling agent or labeling reagent in probe and conjugate synthesis.
• Academic & R&D: Fundamental reagent for methodological studies in organic chemistry and new reaction development.

Basic Information

Product Name	4H-Pyran-2-Carbonyl Chloride, 4-Oxo- (9Ci)
CAS No.	176379-69-4
Molecular Formula	C6H3ClO3
Molecular Weight	158.54 g/mol
Synonyms	4-Oxo-4H-pyran-2-carbonyl chloride; 4-Oxo-4H-pyran-2-carboxylic acid chloride; 2-Pyrancarbonyl chloride, 4-oxo-; 4-Oxo-2-pyrancarbonyl chloride; 4H-Pyran-2-carbonyl chloride, 4-oxo-; 4-Oxo-4H-pyran-2-carboxyl chloride
EINECS	Contact for details

Quality Control

Our production of 4H-Pyran-2-Carbonyl Chloride, 4-Oxo- (9Ci) adheres to stringent internal quality protocols to ensure batch-to-batch consistency and high chemical purity. Each lot is characterized by modern analytical techniques including NMR, HPLC, and IR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory 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). This material is hygroscopic (moisture-sensitive) and should be handled under anhydrous conditions to prevent decomposition. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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