Description

2-Oxo-2H-Pyran-5-Carbonyl Chloride is a highly reactive acid chloride derivative of a pyranone, serving as a critical building block in advanced organic synthesis. Its value lies in its ability to efficiently introduce the 2-oxo-2H-pyran-5-carbonyl moiety into target molecules, enabling the construction of complex heterocyclic systems. This intermediate is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly those containing lactone or fused heterocyclic structures.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides, where the pyranone core can contribute to biological activity.
• Material Science Precursor: Serves as a monomer or cross-linking agent in the development of specialized polymers and functional organic materials.
• Chemical Research & Development: A versatile reagent in academic and industrial R&D for exploring new synthetic methodologies and creating compound libraries.
• Dye and Pigment Intermediate: Utilized in the synthesis of complex organic colorants and photoactive compounds.

Basic Information

Item	Detail
Product Name	2-Oxo-2H-Pyran-5-Carbonyl Chloride
CAS No.	23090-18-8
Molecular Formula	C7H3ClO3
Molecular Weight	170.55 g/mol
Synonyms	5-Chlorocarbonyl-2H-pyran-2-one; 2-Oxo-2H-pyran-5-carboxylic acid chloride; 5-Pyranoyl chloride, 2-oxo-; 2H-Pyran-2-one, 5-(chlorocarbonyl)-; 5-Carboxy-2-pyrone chloride; 2-Oxo-5-pyrancarbonyl chloride; 5-(Chlorocarbonyl)-2H-pyran-2-one
EINECS	Contact for details

Quality Control

Our 2-Oxo-2H-Pyran-5-Carbonyl Chloride is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by FT-IR and NMR, to ensure it meets the high standards required for synthetic applications. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic and reactive nature, store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated place. Recommended storage temperature is 2-8°C for long-term stability. Keep away from moisture, 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)	≤ 1.0%

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