Description

5H-Dithieno[3,2-B:2',3'-D]Pyran-5-One is a high-purity, specialized heterocyclic organic compound with the CAS number 1295502-12-3. This advanced chemical building block is valued for its unique fused-ring structure, which is critical for developing novel materials with specific electronic and photophysical properties. It is primarily sought by researchers and manufacturers in the pharmaceutical, agrochemical, and organic electronics sectors for use in synthesis and material science applications.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for compounds targeting central nervous system disorders.
• Agrochemical Research: Used in the development of new-generation herbicides and fungicides, leveraging its complex molecular architecture for enhanced biological activity.
• Organic Semiconductor Material: Acts as a core building block for organic light-emitting diodes (OLEDs), organic photovoltaics (OPVs), and field-effect transistors (OFETs) due to its promising charge transport properties.
• Dye and Pigment Synthesis: Employed in creating advanced functional dyes and pigments with specific light-absorption and emission characteristics.
• Academic & Industrial R&D: A valuable reagent for synthetic organic chemists exploring new reactions and constructing complex heterocyclic systems in both academic and corporate research laboratories.
• Material Science: Investigated for use in the fabrication of non-linear optical (NLO) materials and sensors.

Basic Information

Product Name	5H-Dithieno[3,2-B:2',3'-D]Pyran-5-One
CAS No.	1295502-12-3
Molecular Formula	C9H4O2S2
Molecular Weight	208.26 g/mol
Synonyms	5H-Dithieno[3,2-b:2',3'-d]pyran-5-one; Dithieno[3,2-b:2',3'-d]pyran-5(5H)-one; 1295502-12-3; DTIPO; Fused Thienopyranone; Thieno[3,2-b]thieno[2',3':4,5]pyrano[2,3-d]pyridin-5-one (related structure); Dithienopyranone derivative.
EINECS	Contact for details

Quality Control

Our 5H-Dithieno[3,2-B:2',3'-D]Pyran-5-One is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to ensure high chemical purity and structural identity. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to guarantee traceability and compliance with your research or production requirements.

Storage

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

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.