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Tetradecyl bromide

Updated: 2026-07-24

Overview

Tetradecyl Bromide is a 14-carbon alkyl bromide with the formula C14H29Br, classified as a long-chain alkyl halide. It serves as a versatile intermediate in organic chemistry due to its reactive bromine atom, which facilitates nucleophilic substitution reactions. The compound is industrially significant for its role in synthesizing quaternary ammonium compounds, surfactants, and specialty chemicals. First synthesized in the early 20th century, it remains a staple in fine chemical manufacturing. Its hydrophobic nature and compatibility with non-polar solvents make it valuable for applications requiring lipid-soluble reagents or phase-transfer catalysts.

Physical and Chemical Properties

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As a liquid at room temperature, Tetradecyl Bromide exhibits moderate volatility with a characteristic mild odor. Its density (1.03 g/cm³) is slightly higher than water, and it is immiscible with aqueous solutions but readily dissolves in alcohols, ethers, and chlorinated solvents. The bromine atom at the terminal carbon makes it highly reactive in SN2 reactions, enabling alkylation of amines or thiols. It is stable under inert conditions but may decompose under prolonged exposure to light or strong bases, releasing hydrogen bromide. Thermal stability is adequate for most synthesis (<200°C).

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Main Applications

In pharmaceuticals, Tetradecyl Bromide is used to synthesize cationic surfactants like cetrimonium bromide, which act as antiseptics or drug delivery enhancers. It also serves as a precursor for myristyl derivatives in cosmetic emulsifiers. Industrial applications include fabric softeners, corrosion inhibitors, and lubricant additives. Its role in phase-transfer catalysis (PTC) is notable for accelerating reactions between aqueous and organic phases. Recent research explores its utility in nanotechnology for surface modification of nanoparticles.

Safety and Storage

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Tetradecyl Bromide requires careful handling due to its irritant properties and flammability (flash point ~110°C). Use fume hoods and avoid skin contact—wash immediately with soap if exposed. Spills should be contained with inert absorbents (e.g., sand) and disposed of as hazardous waste. Store in amber glass or HDPE containers under nitrogen blanket to prevent degradation. Shelf life is typically 2-3 years when kept at 2-8°C. Incompatible with strong oxidizers (e.g., peroxides) and alkali metals.

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B2B Procurement Guide

Bulk buyers should prioritize suppliers with REACH or ISO 9001 certification to ensure consistent quality. Key specifications include purity (≥98%), bromide content, and residual solvent levels (e.g., <0.5% ethanol). Logistics require UN-certified packaging (Class 3/8) for transport. Spot prices fluctuate with bromine market trends; contracts with fixed-price clauses are advisable for large-volume purchases. Sample testing for NMR/GC-MS verification is recommended before full-scale procurement.

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