Description

2H-Pyran-2-One, 4-Ethynyl-5,6-Dihydro-3-Methyl- (9Ci) is a specialized heterocyclic building block featuring a reactive ethynyl group on a dihydropyranone core. This compound matters as a versatile synthon for constructing complex molecular architectures, particularly in pharmaceutical and advanced material research. It is primarily needed by R&D chemists and process development scientists in the fine chemical, agrochemical, and pharmaceutical industries for synthesizing novel active ingredients and functional intermediates.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, especially those targeting central nervous system (CNS) disorders or anti-infective agents.
• Agrochemical Synthesis: Used in the research and development of new pesticides and herbicides, leveraging its reactive ethynyl group for structural diversification.
• Material Science Research: Serves as a monomer or precursor for developing specialty polymers, coatings, or liquid crystals with tailored properties.
• Chemical Biology Probes: Utilized in the creation of molecular probes and tags for studying biological processes via click chemistry or other bioorthogonal reactions.
• Academic & Industrial R&D: A valuable reagent for methodology development and exploring new synthetic routes in organic chemistry laboratories.
• Fine Chemical Production: Intermediate in the multi-step synthesis of complex, high-value specialty chemicals for various industrial applications.

Basic Information

Product Name	2H-Pyran-2-One, 4-Ethynyl-5,6-Dihydro-3-Methyl- (9Ci)
CAS No.	113490-30-5
Molecular Formula	C8H8O2
Molecular Weight	136.15 g/mol
Synonyms	4-Ethynyl-5,6-dihydro-3-methyl-2H-pyran-2-one; 3-Methyl-4-ethynyl-5,6-dihydro-2H-pyran-2-one; 4-Ethynyl-3-methyl-5,6-dihydro-2H-pyran-2-one; Dihydro-3-methyl-4-ethynyl-2H-pyran-2-one; 2H-Pyran-2-one, 4-ethynyl-5,6-dihydro-3-methyl-; 4-Ethynyl-3-methyl-5,6-dihydro-2-pyranone
EINECS	Contact for details

Quality Control

Our 2H-Pyran-2-One, 4-Ethynyl-5,6-Dihydro-3-Methyl- (9Ci) is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure it meets the high standards required for research and development. Certificates of Analysis (COA) detailing batch-specific results are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). This compound may be light-sensitive and should be handled under an inert atmosphere for long-term stability. Keep away from strong oxidizing agents.

Specification

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