Formulation chemists and product developers constantly seek materials that offer precise control and enhance product performance. For those working with conductive polymers, understanding the intrinsic properties of precursors like 2,5-Dibromo-3-decylthiophene (CAS 158956-23-1) is crucial for successful integration into new materials and devices. As a specialized supplier of fine chemicals, we provide essential insights into this versatile thiophene derivative.

2,5-Dibromo-3-decylthiophene is a halogenated heterocyclic compound, distinguished by its molecular formula C14H22Br2S and a molecular weight of approximately 382.2 g/mol. Its structure features a thiophene ring substituted with two bromine atoms at the 2 and 5 positions, and a ten-carbon alkyl chain (decyl) at the 3 position. This unique combination of functional groups dictates its chemical behavior and suitability for specific applications.

The physical form of 2,5-Dibromo-3-decylthiophene is typically described as a light yellow to brown liquid. Key physical properties include a boiling point of 168-170 °C at 2 mmHg, indicating moderate volatility under reduced pressure. Its density is reported as 1.372 g/mL at 25 °C, and its refractive index is 1.538 (lit.), which can be useful for quality control and identification purposes. The flash point, exceeding 230 °F, suggests a relatively low flammability hazard under normal handling conditions.

From a chemical perspective, the bromine atoms on the thiophene ring are reactive sites, readily participating in cross-coupling reactions, such as Suzuki or Stille couplings, which are fundamental for constructing conjugated polymer backbones. The decyl side chain, being an aliphatic hydrocarbon, enhances the solubility of the compound and the derived polymers in common organic solvents. This improved solubility is critical for solution-based processing, a key advantage in manufacturing organic electronic devices. When considering a purchase, inquiring about the purity level, typically 97% or higher, from a reliable manufacturer is essential to ensure successful polymerization outcomes.

The stability of 2,5-Dibromo-3-decylthiophene is generally good under normal temperatures and pressures, but proper storage conditions are necessary to maintain its integrity. Recommendations often include storing it in a cool, dry, well-ventilated area, potentially under an inert atmosphere and at reduced temperatures (e.g., 2-8°C or -20°C freezer, as suggested by some suppliers) to prevent degradation. These storage guidelines are important for maintaining the high quality expected by formulation chemists and ensuring the compound remains reactive for its intended synthetic purposes.

For formulation chemists looking to buy 2,5-Dibromo-3-decylthiophene, partnering with a reputable supplier in China provides access to consistent quality and competitive pricing. Understanding these chemical and physical properties empowers you to select the right materials for your innovative formulations and confidently procure them from trusted sources.