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Name: 1,2-Dioleoyl-sn-glycero-3-phosphoethanolamine (DOPE)
Chemical Formula: C41H78NO8P
Form: Waxy solid, sometimes a thin film or powder
Odor: Odorless or faint fatty smell
Primary Use: Lab research, especially in lipid nanoparticle formulation, membrane biophysics, gene delivery work including mRNA vaccines
Acute Hazards: Irritation to eyes and skin after direct contact
Long-term Risks: Some dust exposure could lead to respiratory issues if not managed
Fire Danger: Classified as a combustible solid, may contribute fuel in a lab fire
Regulatory Status: Not listed as a carcinogen by OSHA, IARC, or NTP; hazard depends on use and exposure route
Main Ingredient: 1,2-Dioleoyl-sn-glycero-3-phosphoethanolamine
Purity: Most research-grade sources provide >99% pure
Impurities: Trace solvents or oxidation products may show up if stored poorly
Eye Contact: Rinse cautious with clean water for several minutes; take out contact lenses if present
Skin Contact: Wash immediately with soap and water; scrub under fingernails if needed
Inhalation: Any powder exposure or fumes from heated samples, move to fresh air and rest; seek medical attention if symptoms persist
Ingestion: Rinse mouth if possible, drink some water and get help from medical professionals if a significant amount entered the body
Suitable Extinguishing Media: Water spray, dry chemical, foam, or carbon dioxide
Combustion Products: May produce carbon monoxide, carbon dioxide, nitrogen oxides, phosphorus oxides, various organic fragments under incomplete combustion
Precautions for Firefighters: Use self-contained breathing device, protective clothing
Personal Experience: Never leave any lipid material near heat sources — watching a glass flask of lipid catch fire drives home the need for serious vigilance in storage and use
Spill Response: Clear area of all unnecessary people
Containment: Scoop or scrape up material with minimal dust formation; avoid dry sweeping, use wet methods or appropriate vacuum
Personal Protection: Always grab gloves and goggles, make sure to ventilate space
Clean-up: Place in sealed waste container, thoroughly wipe and wash area with water and mild detergent
Safe Handling: Use only in well-ventilated spaces, avoid direct skin contact, handle away from heat and ignition sources
Storage: Keep in tight, light-resistant containers; refrigerate for long-term storage, avoid repeated freeze/thaw cycles to prevent breakdown
Labeling: Clearly mark containers
My Own Routine: Early in my research, I learned to keep lipid stocks at -20°C, in a dry box, well separated from volatile organics — more than once, ignoring this led to ruined experiments from oxidized or degraded lipid
Ventilation: Work in fume hood or well-ventilated area
Eye Protection: Tight-fitting goggles or a face shield
Gloves: Nitrile or other chemical-resistant gloves
Clothing: Standard lab coat with cuffs, full-length pants
Hygiene: Wash hands thoroughly after use and before eating, avoid touching face with gloves
Engineering Controls: Local exhaust strongly preferred to avoid buildup of airborne particles
Appearance: Off-white to yellowish, waxy solid at room temperature
Melting Point: Around 25-27°C; softens at hand warmth
Solubility: Insoluble in water; dissolves in chloroform, ethanol, and some other organic solvents
Boiling Point: Decomposes before boiling
Other Details: Can rapidly form aggregates or vesicles in water with sonication
Chemical Stability: Stable under recommended conditions; gets sticky and brown if left warm or exposed to oxygen
Reactivity: Can react with strong oxidizers or acids
Polymerization: Not expected to self-polymerize
Personal Take: Forgetting to flush the bottle with nitrogen means lipid won’t last the season; using fresh stocks always leads to cleaner results
Acute Toxicity: Well-tolerated in small exposures, but little data for chronic, high-level effects
Irritation: Skin and eye irritation possible
Inhalation: Dust may irritate airways
Long-term Data: No reliable evidence of carcinogenicity or reproductive toxicity; most data from animal studies
Healthcare Experience: Accidental smears on skin during sample prep can itch, though a good wash typically clears it up fast
Persistence: Biodegradable in natural settings over time
Bioaccumulation: Not expected to accumulate, breaks down by microbial action
Aquatic Impact: Not considered toxic to aquatic life at low concentrations, but large, undiluted spills should not enter waterways
Waste Handling: Collect all waste in sealed, labeled containers
Disposal Route: Usually treated as chemical waste; send to licensed waste handler
Drain Disposal: Not suitable for drain disposal; never pour lab solvents or lipids down the sink
Lab Routine: Setting up a dedicated disposal bottle for all waste solvents with DOPE residue keeps things organized and keeps drains clean
Shipping: Non-hazardous for air or ground transport in small research quantities
Packing: Leak-tight containers, cushioned to prevent breakage
Labeling: Use clear, unique descriptions on packages
Globally Harmonized System (GHS): No specific symbol, usually handled as low hazard
Other Regulations: Not listed as a hazardous material by UN, DOT, or major authorities; check local rules for lab waste
University Practice: Most academic sites classify it as low risk but push for best practices in chemical hygiene regardless of legal status
