Description

2-(4,5-Dihydrothiophen-2(3H)-Ylidene)-5,5-Dimethyl-1,3-Cyclohexanedione is a specialized organic compound featuring a unique cyclohexanedione core fused with a dihydrothiophene moiety, making it a valuable intermediate in advanced chemical synthesis. Its structure is critical for applications requiring precise molecular frameworks, such as in the development of novel heterocyclic compounds and functional materials. This chemical is primarily sought by research institutions and industrial R&D departments in the pharmaceutical, agrochemical, and material science sectors for process development and novel product innovation.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for compounds with sulfur-containing heterocycles.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and plant growth regulators that leverage its specific molecular architecture.
• Organic Synthesis Reagent: Acts as a versatile precursor for Diels-Alder reactions, Michael additions, and the construction of complex polycyclic structures in academic and industrial laboratories.
• Material Science: Investigated for the preparation of organic semiconductors, ligands for metal-organic frameworks (MOFs), and specialty polymers due to its electron-donating properties.
• Dye & Pigment Intermediate: Utilized in the synthesis of specialized colorants and photochromic materials where the thiophene and diketone groups influence light absorption.
• Chemical Research Standard: Supplied as a high-purity reference standard for analytical method development and quality control in chemical manufacturing.

Basic Information

Product Name	2-(4,5-Dihydrothiophen-2(3H)-Ylidene)-5,5-Dimethyl-1,3-Cyclohexanedione
CAS No.	62686-89-9
Molecular Formula	C12H16O2S
Molecular Weight	224.32 g/mol
Synonyms	5,5-Dimethyl-2-(4,5-dihydro-3H-thiophen-2-ylidene)-1,3-cyclohexanedione; 2-(4,5-Dihydrothiophen-2(3H)-ylidene)-5,5-dimethylcyclohexane-1,3-dione; 5,5-Dimethyl-2-(4,5-dihydrothiophen-2-ylidene)cyclohexane-1,3-dione; NSC 339063; Dihydrothiophene-substituted dimedone derivative; Thiophene-cyclohexanedione adduct
EINECS	Contact for details

Quality Control

Our 2-(4,5-Dihydrothiophen-2(3H)-Ylidene)-5,5-Dimethyl-1,3-Cyclohexanedione is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) detailing specifications such as assay, impurity profile, and physical characteristics. Our quality commitment aligns with cGMP principles for pharmaceutical intermediates, ensuring reliability for your critical R&D and scale-up processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, handling and storage should minimize exposure to direct light to maintain product integrity.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Single impurity ≤ 1.0%; Total impurities ≤ 2.0%

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