Overview
Nocodazole is a synthetic benzimidazole derivative that functions as a microtubule-disrupting agent. First synthesized in the 1970s, it has become a fundamental tool in cell biology for synchronizing cell cultures and studying mitotic processes. Unlike colchicine, its effects are reversible upon removal, making it valuable for experimental work. The compound binds to β-tubulin, preventing polymerization into microtubules and causing mitotic arrest. This mechanism has made it indispensable for investigating cell division, cytoskeletal dynamics, and cancer cell behavior in both academic and pharmaceutical research settings.
Physical and Chemical Properties
Nocodazole presents as a stable crystalline solid under proper storage conditions. Its poor water solubility necessitates dissolution in organic solvents like DMSO (typically 10-20mM stock solutions) before aqueous dilution. The compound shows stability in dry form but may degrade in solution over time, especially when exposed to light or elevated temperatures. Spectroscopic analysis reveals characteristic absorption peaks at 230nm and 310nm, useful for concentration verification. The thienyl and benzimidazole groups contribute to its planar structure, which facilitates interaction with the tubulin binding site. Thermal decomposition occurs above 290°C without clear boiling point due to molecular fragmentation.
Main Applications
In research laboratories, nocodazole primarily serves to synchronize cells in mitosis (typically at 100-200ng/mL concentrations). This application is crucial for studying cell cycle checkpoints, chromosomal abnormalities, and the efficacy of anti-cancer drugs. Cancer researchers employ it to test combination therapies targeting both microtubules and other cellular pathways. The pharmaceutical industry uses nocodazole as a reference compound when developing novel anti-mitotic drugs. Additionally, it aids in generating micronuclei for genotoxicity testing and enables selective pressure during hybridoma development. Recent applications include studying intracellular transport mechanisms and neuronal development where microtubule dynamics play key roles.
Safety and Storage
As a potent biochemical agent, nocodazole requires careful handling with nitrile gloves, lab coats, and eye protection. Powder handling should occur in fume hoods to prevent inhalation exposure. Spills should be contained with absorbent materials and cleaned with appropriate solvents followed by detergent washing. Long-term storage requires airtight containers with desiccant at -20°C, where it remains stable for years. Solutions are typically aliquoted to avoid freeze-thaw cycles and used within 3-6 months. Material Safety Data Sheets (MSDS) should be reviewed before use, particularly regarding first aid measures for accidental exposure through skin contact or ingestion.
B2B Procurement Guide
When sourcing nocodazole, prioritize suppliers with ISO certification and detailed Certificates of Analysis (CoA). Key specifications include HPLC purity (≥98%), endotoxin levels (for cell culture applications), and batch-to-batch consistency. Research-grade material typically costs $5-20 per milligram, while GMP-grade commands premium pricing. Consider ordering pre-weighed aliquots to minimize handling risks. For large-scale purchases (100g+), negotiate bulk discounts but verify proper packaging (nitrogen-flushed vials) and cold chain logistics. Some suppliers offer custom formulations, such as ready-to-use solutions with stability enhancers. Always confirm export/import regulations, as some countries control microtubule-targeting compounds.
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