Description

Spiro[4H-Cyclopenta[2,1-B:3,4-B']Dithiophene-4,2'-[1,3]Dioxolane] CAS NO 156547-71-6 is a high-purity, advanced organic electronic material belonging to the class of spiro-conjugated compounds. Its unique fused-ring, three-dimensional structure is engineered to deliver exceptional charge transport properties and morphological stability, which are critical for high-performance electronic devices. This compound is primarily sought by R&D and manufacturing teams in the organic electronics, photovoltaics, and semiconductor industries for developing next-generation technologies.

Application

• Organic Photovoltaic (OPV) Cells: Serves as a key electron-donor or hole-transport material in the active layer of solar cells, enhancing power conversion efficiency and device longevity.
• Organic Light-Emitting Diodes (OLEDs): Used as a host or emissive layer material in display and lighting applications to improve luminance efficiency and color purity.
• Organic Field-Effect Transistors (OFETs): Functions as a high-mobility semiconductor material for flexible electronics, sensors, and logic circuits.
• Perovskite Solar Cells: Employed as a hole-transporting material (HTM) or an interfacial layer to improve charge extraction and stability.
• Chemical Synthesis & Material Science Research: Acts as a sophisticated building block or intermediate for synthesizing novel conjugated polymers and small molecules.
• Photodetectors and Sensors: Utilized in the fabrication of sensitive optoelectronic devices due to its tunable absorption and electronic properties.

Basic Information

Product Name	Spiro[4H-Cyclopenta[2,1-B:3,4-B']Dithiophene-4,2'-[1,3]Dioxolane]
CAS No.	156547-71-6
Molecular Formula	C13H8O2S2
Molecular Weight	260.33 g/mol
Synonyms	4H-Cyclopenta[2,1-b:3,4-b']dithiophene, 4,2'-[1,3]dioxolane-spiro; Spiro(cyclopentadithiophene-4,2'-[1,3]dioxolane); Spiro-CPDT; SCPDT; 2,2'-Spirobi[4H-cyclopenta[2,1-b:3,4-b']dithiophene]-4,4'-dione ethylene ketal; Spiro-cyclopentadithiophene dioxolane
EINECS	Contact for details

Quality Control

We supply high-purity grades (typically ≥98% by HPLC) tailored for sensitive electronic applications. Our products undergo rigorous quality testing to ensure batch-to-batch consistency and compliance with industry standards. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. For long-term storage, keep the product in a cool, dry place at temperatures between 2°C and 8°C under an inert atmosphere to prevent oxidation and degradation. The material is moisture-sensitive; handle and store under dry conditions.

Specification

Item	Specification
Appearance	Yellow to brown crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Residual Solvents (GC)	Meets ICH guidelines

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