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Name: Bafilomycin A1
Chemical family: Macrolide antibiotic
Molecular formula: C35H58O9
Common uses: Laboratory use as a selective inhibitor of vacuolar-type ATPase, studies on autophagy, research on cellular transport mechanisms, and basic cell biology.
Physical appearance: Typically appears as a solid yellow powder.
Odor: Odorless under standard lab conditions.
Solubility: Soluble in DMSO and methanol.
Health hazards: Bafilomycin A1 is toxic if ingested, inhaled, or absorbed through skin. Exposure can lead to acute symptoms like nausea, headache, labored breathing, and skin or eye irritation.
Chronic hazards: Animal research links protracted exposure to cellular toxicity, with potential impact on reproductive organs and the nervous system.
Carcinogenicity: Insufficient long-term human data exist to determine cancer risks.
Environmental hazards: Bafilomycin A1 poses risk to aquatic ecosystems due to its persistence and bioactivity.
Signal words: Danger, toxic, environmental hazard.
Main component: Bafilomycin A1 (usually over 95% purity in lab-grade material).
Impurities: Trace quantities of related macrolides may be present, often below 5% by weight.
If inhaled: Get the person out to fresh air, monitor breathing, seek medical attention if symptoms persist.
If on skin: Remove contaminated clothing, wash skin thoroughly with water and soap, watch for irritation.
If in eyes: Rinse with plenty of water for at least 15 minutes, keep eyelids open, seek medical help if irritation develops.
If ingested: Rinse mouth with water. Do not induce vomiting. Contact poison control or a physician immediately.
General advice: Immediate response minimizes harm; always alert trained medical staff about the chemical involved.
Flammability: Not highly flammable, but can give off hazardous fumes at high temperatures.
Extinguishing media: Carbon dioxide, dry chemical powder, foam work best.
Special hazards: During combustion, may release toxic gases like carbon monoxide, carbon dioxide, and other hazardous organic compounds.
Protective equipment: Firefighters should use full protective gear with self-contained breathing apparatus.
Spill cleanup: Avoid dust formation. Use absorbent materials and work in a fume hood whenever possible.
Personal precautions: Wear gloves, lab coat, and goggles, and keep unprotected people away.
Environmental precautions: Prevent run-off into drains, surface waters, or soil.
Disposal: Collect spill with care and dispose of as hazardous waste.
Handling: Use in a well-ventilated space, preferably under a chemical fume hood. Avoid contact with skin, eyes, or clothing. Do not breathe in dust or vapors.
Storage: Keep in a tightly closed container, protected from light and moisture. Store at -20°C to slow degradation. Segregate from strong oxidizers and incompatible materials.
Hygiene: Wash thoroughly after handling and before eating, drinking, or smoking.
Engineering controls: Use local exhaust ventilation or adequate laboratory fume hoods.
Personal protective equipment: Chemical-resistant gloves, splash-proof goggles, and lab coats. For larger quantities, use certified respirators as extra precaution.
Exposure limits: No occupational exposure limits published for Bafilomycin A1.
Monitoring requirements: Regular checks for spills or residues in work space help maintain safety.
Appearance: Yellow crystalline powder.
Boiling point: Not readily available.
Melting point: Approximately 195°C (decomposes).
Solubility: Good solubility in organic solvents like DMSO or methanol.
Vapor pressure: Not established.
Density: Not well-documented.
Stability: Stable under recommended storage; degrades with exposure to sunlight, oxygen, and heat.
Reactivity: Bafilomycin A1 does not react with most laboratory chemicals under normal conditions.
Chemical stability: Stable at -20°C, but may slowly break down if left at room temperature.
Incompatible materials: Oxidizers, strong acids, and bases can degrade the compound.
Hazardous decomposition products: Combustion can lead to carbon oxides and possibly irritant organic fumes.
Likely routes of exposure: Inhalation, skin and eye contact, ingestion.
Acute effects: Short exposures can affect gastrointestinal tract, lungs, skin, or eyes.
Chronic effects: Animal studies show risks of mitochondrial disruption, cellular apoptosis, and possible nerve toxicity in high or repeated doses.
Mutagenicity: No robust evidence, but as a macrolide antibiotic, caution is warranted.
Reproductive toxicity: No detailed studies in humans, but animal reports suggest some potential effects.
Symptoms: Cough, headache, nausea, abdominal pain, skin redness.
Aquatic toxicity: Harmful to aquatic organisms even at low concentrations, due to its potent bioactivity.
Persistence: May persist through sewage treatment and could reach groundwater or surface water.
Bioaccumulation: Potentially bioaccumulative due to chemical structure. Frequent release into water systems could have far-reaching ecological impacts.
General advice: Keep out of surface water, drains, and soil to minimize environmental harm.
Waste treatment: Bafilomycin A1 must be treated as hazardous waste. Burn in a chemical incinerator equipped with afterburner and scrubber if available.
Small amounts: Absorb spills with inert material and dispose according to institutional policy for hazardous chemicals.
Regulatory compliance: Follow local, state, and national hazardous waste rules.
Transport regulations: Bafilomycin A1 ships as a hazardous substance. Use sturdy, sealed containers with clear hazard labeling.
UN classification: Hazardous for laboratory shipping; exact category may depend on concentration and packaging.
Precautions: Protect from impact, heat, and improper storage during transit.
Environmental risk: Shipping accidents can cause contamination of water, soil, or air.
Workplace safety: Laboratories should have clear protocols, with training and ready access to material safety data.
Labeling: Label all containers accurately with the substance name, hazard warnings, and handling instructions.
Legal status: Not controlled as a drug, but regulations apply to handling, disposal, and reporting spills in workplaces.
Reporting requirements: Large spills or releases may require notification to environmental authorities.
