Description

2H-Pyran-3-Carbonyl Chloride, 5,6-Dihydro-2,6-Dimethyl-, cis- (9Ci) is a specialized, high-purity chemical intermediate featuring a reactive acid chloride functional group on a dihydropyran scaffold. This compound matters for its role as a critical building block in the synthesis of complex molecules, enabling the introduction of the pyran-3-carbonyl moiety under mild conditions. It is primarily needed by research and development teams in the pharmaceutical and agrochemical industries for creating novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key synthon for constructing heterocyclic cores in drug discovery programs, particularly for candidates targeting central nervous system (CNS) and metabolic diseases.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides, where the pyran structure contributes to biological activity and stability.
• Material Science Research: Serves as a monomer or cross-linking agent in the development of novel polymers with specific thermal or optical properties.
• Fine Chemical Production: Employed in custom synthesis and contract manufacturing for producing high-value, low-volume specialty chemicals.
• Academic & Industrial R&D: Utilized in methodological chemistry research for studying new coupling reactions and catalytic processes.

Basic Information

Product Name	2H-Pyran-3-Carbonyl Chloride, 5,6-Dihydro-2,6-Dimethyl-, cis- (9Ci)
CAS No.	146202-65-5
Molecular Formula	C8H11ClO2
Molecular Weight	174.62 g/mol
Synonyms	cis-5,6-Dihydro-2,6-dimethyl-2H-pyran-3-carbonyl chloride; 2H-Pyran-3-carbonyl chloride, 5,6-dihydro-2,6-dimethyl-, (cis)-; 5,6-Dihydro-2,6-dimethyl-2H-pyran-3-carbonyl chloride; Dihydropyran-3-carbonyl chloride derivative
EINECS	Contact for details

Quality Control

Every batch of 2H-Pyran-3-Carbonyl Chloride, 5,6-Dihydro-2,6-Dimethyl-, cis- (9Ci) is produced and tested under strict quality management systems. We ensure compliance with relevant industry standards for fine chemical intermediates. Comprehensive analytical testing, including HPLC, GC, and NMR, is performed to verify identity, purity, and consistency. A Certificate of Analysis (COA) detailing all specifications is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and reacts with strong acids/organic solvents; therefore, it must be kept under an inert atmosphere (e.g., nitrogen or argon) and away from incompatible materials. Keep the container tightly sealed when not in use to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
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.