For chemical procurement managers and R&D scientists in the field of advanced materials, sourcing critical intermediates like 2,2′,7,7′-Tetrabromo-9,9′-spirobifluorene (TBSBF) is a strategic decision. Understanding the product, its specifications, applications, and how to effectively procure it from manufacturers is key to project success. This guide provides a manufacturer's perspective on TBSBF (CAS 128055-74-3).

Understanding the Product: 2,2′,7,7′-Tetrabromo-9,9′-spirobifluorene

TBSBF is a brominated derivative of 9,9′-spirobifluorene. Its unique spiro structure confers exceptional thermal and chemical stability, making it an ideal core for materials used in demanding electronic applications. The molecular formula is C25H12Br4, with a molecular weight of 631.98 g/mol. Typically presented as a white to off-white powder or crystals, its high melting point (often >360°C) indicates its robust nature. The presence of four bromine atoms is critical, as it allows for facile modification through various coupling reactions, enabling the synthesis of polymers and small molecules with tailored electronic properties.

Key Applications in Organic Electronics

The versatility of TBSBF makes it a sought-after intermediate in several cutting-edge areas:

  • OLEDs (Organic Light-Emitting Diodes): TBSBF is used as a precursor for host materials, emitting layer components, and charge transport layers, contributing to high efficiency, color purity, and device longevity.
  • OPVs (Organic Photovoltaics): It serves as a building block for designing polymers and small molecules with optimal band gaps and charge mobilities for efficient solar energy conversion.
  • OFETs (Organic Field-Effect Transistors): The spirobifluorene core’s rigidity promotes good charge transport, making TBSBF derivatives suitable for high-performance organic semiconductor materials.
  • Perovskite Solar Cells: TBSBF is a key intermediate in the synthesis of Spiro-OMeTAD, a widely adopted hole-transporting material.

Sourcing Considerations: Partnering with Manufacturers

When looking to buy 2,2′,7,7′-Tetrabromo-9,9′-spirobifluorene, several factors should guide your selection of a manufacturer:

  • Purity and Specification: Always request detailed specifications, particularly HPLC purity (typically >98%), melting point, and other relevant analytical data.
  • Production Capacity: Ensure the manufacturer can meet your current and future volume requirements, from R&D scale to commercial production.
  • Quality Control Systems: Verify that the manufacturer adheres to strict quality control protocols and can provide comprehensive Certificates of Analysis (CoA) and Material Safety Data Sheets (MSDS).
  • Pricing and Lead Times: Obtain competitive quotes that include clear pricing structures and realistic lead times for delivery.
  • Technical Support: A good manufacturer will offer technical support and be responsive to inquiries regarding product usage and properties.

As a leading chemical supplier in China, we specialize in providing high-quality intermediates like TBSBF. We understand the critical nature of these materials for your innovative projects. Our manufacturing processes are geared towards delivering consistent purity and reliable supply. When you need to purchase CAS 128055-74-3, consider our expertise and commitment to quality.

We invite you to contact us for a quote or to discuss your specific needs for 2,2′,7,7′-Tetrabromo-9,9′-spirobifluorene. Partner with a manufacturer dedicated to fueling your advancements in organic electronics.