Overview
8-Bromoadenosine is a brominated derivative of adenosine, a naturally occurring nucleoside. It is primarily utilized in biochemical and pharmacological research due to its ability to interact with adenosine receptors. The compound serves as a valuable tool for studying receptor-mediated signaling pathways and enzyme inhibition. Unlike its parent compound adenosine, 8-bromoadenosine exhibits enhanced stability and distinct binding properties, making it particularly useful in experimental settings. Its synthesis involves the bromination of adenosine at the 8-position of the purine ring, resulting in a stable analog with modified biological activity.
Physical and Chemical Properties
8-Bromoadenosine appears as a white to off-white crystalline powder with a molecular weight of 346.14 g/mol. It is sparingly soluble in water but dissolves well in organic solvents like dimethyl sulfoxide (DMSO) and methanol. The compound decomposes at temperatures around 220-225°C without a distinct boiling point. The bromine substitution at the 8-position significantly alters the compound's electronic properties compared to adenosine, affecting its hydrogen-bonding capacity and receptor affinity. This modification also enhances its stability against enzymatic degradation by adenosine deaminase, a common challenge with unmodified adenosine in biological systems.
Main Applications
In research laboratories, 8-bromoadenosine is predominantly used as a biochemical tool to investigate adenosine receptor function and downstream signaling cascades. It serves as a ligand for A1, A2A, A2B, and A3 receptor subtypes, helping scientists elucidate their roles in physiological and pathological processes. The pharmaceutical industry employs this compound as an intermediate in drug discovery programs targeting adenosine-related pathways. Its structural features make it a valuable scaffold for developing novel therapeutics for conditions like inflammation, cardiovascular diseases, and neurological disorders. Additionally, it finds use in enzymatic studies as an inhibitor or substrate analog.
Safety and Storage
As a laboratory chemical, 8-bromoadenosine requires careful handling. Personnel should wear appropriate personal protective equipment including gloves, lab coats, and eye protection. The compound should be used in a well-ventilated area or fume hood to minimize inhalation risks. For long-term stability, the material should be stored at -20°C in tightly sealed containers protected from light and moisture. Under these conditions, the compound typically maintains its integrity for several years. Any spills should be contained and cleaned promptly using proper procedures for brominated organic compounds.
B2B Procurement Guide
When sourcing 8-bromoadenosine commercially, buyers should prioritize suppliers that provide comprehensive analytical certificates including HPLC purity data (typically ≥95% for research grade) and proper CAS number verification. Bulk quantities (100g+) may require extended production time due to the specialized nature of the synthesis. Quality indicators to request include NMR spectra, mass spectrometry data, and residual solvent analysis. For regulatory compliance in pharmaceutical applications, suppliers should be able to provide documentation meeting ICH guidelines. Lead times for custom synthesis or large orders should be factored into project timelines, with 4-8 weeks being common for non-stock items.
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