Description

2H-Pyran-3-Carbonyl Chloride, 5,6-Dihydro- (9Ci) is a versatile and reactive organic intermediate, specifically an acid chloride derivative of a dihydropyran. This compound is valued for its role as a key building block in the synthesis of more complex molecules, enabling the introduction of the 5,6-dihydro-2H-pyran-3-carbonyl moiety. It is primarily sought after by research and development chemists and process engineers in the pharmaceutical and agrochemical industries for constructing novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds with heterocyclic frameworks.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and insecticides, leveraging its reactive carbonyl chloride group.
• Material Science Research: Serves as a monomer or cross-linking agent in the development of specialty polymers and advanced organic materials.
• Fine Chemical Production: Employed in custom synthesis and contract manufacturing for producing high-value, low-volume specialty chemicals.
• Academic & Industrial R&D: A valuable reagent for methodological development and exploring new chemical spaces in organic chemistry laboratories.

Basic Information

Product Name	2H-Pyran-3-Carbonyl Chloride, 5,6-Dihydro- (9Ci)
CAS No.	133609-62-8
Molecular Formula	C6H7ClO2
Molecular Weight	146.57 g/mol
Synonyms	5,6-Dihydro-2H-pyran-3-carbonyl chloride; 3-Pyrancarbonyl chloride, 5,6-dihydro-; Dihydro-2H-pyran-3-carbonyl chloride; 2H-Pyran-3-carbonyl chloride, 5,6-dihydro-; Tetrahydro-4H-pyran-4-one-3-carbonyl chloride (tautomeric form); 5,6-Dihydro-2H-pyran-3-carboxylic acid chloride
EINECS	Contact for details

Quality Control

Our production of 2H-Pyran-3-Carbonyl Chloride, 5,6-Dihydro- (9Ci) adheres to stringent quality protocols to ensure batch-to-batch consistency and reliability for your synthetic processes. Each lot undergoes comprehensive analytical testing, including assay (HPLC), identity confirmation (IR, NMR), and impurity profiling. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

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). Due to its hygroscopic and moisture-sensitive nature, the container must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent decomposition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (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.