Description

Tetramethyl 5',5',7'-Trimethyl-5',6'-Dihydrospiro[1,3-Dithiole-2,1'-Thiopyrano[2,3-C]Quinoline]-2 is a sophisticated, high-purity organic compound featuring a complex spiro-fused heterocyclic structure. This compound is valued for its unique molecular architecture, which makes it a critical advanced intermediate in the synthesis of specialized materials and active pharmaceutical ingredients (APIs). It is primarily sought by research institutions, fine chemical manufacturers, and pharmaceutical R&D departments engaged in developing novel heterocyclic compounds, functional dyes, or complex ligand systems.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of novel quinoline and thiopyrano-quinoline based drug candidates.
• Organic Synthesis Research: Used as a versatile precursor for constructing complex spiro and fused heterocyclic systems in academic and industrial R&D.
• Material Science: Potential application in the development of organic semiconductors, photoresponsive materials, or non-linear optical (NLO) materials due to its electron-rich, conjugated structure.
• Ligand Synthesis: Can be utilized to develop novel chelating ligands for catalysis or metal-organic frameworks (MOFs), leveraging its sulfur and nitrogen donor atoms.
• Agrochemical Research: Acts as an intermediate in the development of new generation pesticides or herbicides with specific biological activity.
• Dye & Pigment Intermediate: The quinoline-thiopyrano core structure is of interest for synthesizing specialized dyes and functional colorants.

Basic Information

Product Name	Tetramethyl 5',5',7'-Trimethyl-5',6'-Dihydrospiro[1,3-Dithiole-2,1'-Thiopyrano[2,3-C]Quinoline]-2
CAS No.	295347-16-9
Molecular Formula	C21H23NO2S3
Molecular Weight	425.60 g/mol
Synonyms	5',5',7'-Trimethyl-5',6'-dihydrospiro[1,3-dithiole-2,1'-thiopyrano[2,3-c]quinoline]-2,2',4',8'-tetrone; Spiro[1,3-dithiole-2,1'-thiopyrano[2,3-c]quinoline]-2,2',4',8'-tetrone, 5',5',7'-trimethyl-5',6'-dihydro-; Tetramethyl-dihydrospiro-dithiole-thiopyranoquinoline derivative; CAS 295347-16-9
EINECS	Contact for details

Quality Control

Every batch of Tetramethyl 5',5',7'-Trimethyl-5',6'-Dihydrospiro[1,3-Dithiole-2,1'-Thiopyrano[2,3-C]Quinoline]-2 is produced and tested under a strict quality management system. We employ advanced analytical techniques including HPLC, GC-MS, NMR, and elemental analysis to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specification results is provided with each shipment to guarantee it meets your research or production requirements.

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 sources and incompatible materials. For long-term storage, consider an inert atmosphere to preserve stability.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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