2,2′:5′,2″-Terthiophene-5-boronic acid pinacol ester

CAS 849062-17-5C18H19BO2S3Chemical Synthesis

2,2′:5′,2″-Terthiophene-5-boronic acid pinacol ester (CAS: 849062-17-5) is a highly functionalised organic compound with a molecular weight of 374.35 g/mol. This terthiophene derivative, featuring a pinacol boronate ester group, serves as a valuable building block in organic synthesis. Its primary applications lie in the development of advanced materials, particularly in organic electronics and conjugated polymers, owing to the electron-rich thiophene backbone.

IUPAC: 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2′:5′,2″-terthiophene
Synonyms: 849062-17-55-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2′:5′,2″-terthiophene

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2,2′:5′,2″-Terthiophene-5-boronic acid pinacol ester (C18H19BO2S3) — chemical structure, CAS 849062-17-5; Chemistry, fine chemical supplied by Tech Serve Solutions

Boronate EstersChemical SynthesisHeteroaryl Boronate EstersMaterials ScienceOrganometallic ReagentsSynthetic Tools and Reagents

01 /Applications

Organic Electronics

Utilised as a key monomer or intermediate in the synthesis of organic semiconductors for applications such as organic field-effect transistors (OFETs) and organic photovoltaics (OPVs).

Materials Science

Incorporated into the development of novel conjugated polymers and oligomers with tailored electronic and optical properties for advanced material applications.

Chemical Synthesis

Serves as a versatile building block in cross-coupling reactions, enabling the construction of complex organic molecules and functional materials.

Heteroaryl Chemistry

A valuable reagent for introducing the terthiophene moiety into various molecular architectures, facilitating research in heteroaromatic chemistry.

02 /Properties

Molecular weight	374.35
Empirical formula	C18H19BO2S3
Assay	96%
Melting point	109-113 °C(lit.)

03 /Safety & handling

Protective equipment	Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
Water hazard class (WGK, DE)	3

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

849062-17-5

MDL number

MFCD06798103

PubChem substance

24883379

05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is 2,2′:5′,2″-Terthiophene-5-boronic acid pinacol ester used for?

This compound is primarily used as a building block in organic synthesis for applications in organic electronics, materials science, and the development of conjugated polymers.

What are the CAS number and molecular formula for this product?

The CAS number is 849062-17-5 and the empirical formula (as per Hill notation) is C18H19BO2S3.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies this product at a minimum purity of 96%. This is a technical/research grade material, and we do not represent it as USP, BP, EP, or any other pharmacopoeia standard.

What are the safety considerations when handling this chemical?

When handling, it is essential to use personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended. The compound is classified with a WGK Germany rating of 3, indicating it is hazardous to water.

How is this product packed, shipped, and exported?

Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, ensuring appropriate packaging and compliance with international shipping regulations for this product.