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Name: Dulbecco’s Modified Eagle’s Medium (DMEM) Nutrient Mixture
Common Use: Cell culture growth in bioresearch, tissue culture, lab experiments
Physical State: Powder or liquid
Appearance: Clear red solution or fine off-white to pink powder, depending on form
Odor: Mild or nearly odorless
Main Risks: No strong evidence for acute toxicity to humans, but not meant for consumption or inhalation
Routes of Exposure: Inhalation of powder, skin or eye contact, accidental ingestion
Possible Effects: Redness or irritation on skin and eyes, minor respiratory irritation if powder is inhaled, possible gastrointestinal upset
Environmental Considerations: Ingredient runoff might impact aquatic life, so avoid flushing down the drain
Notable Components: Glucose, sodium chloride, potassium chloride, calcium chloride, magnesium sulfate, sodium bicarbonate, amino acids, vitamins such as choline, folic acid, and riboflavin
Additives (sometimes present): Phenol red as pH indicator, sodium pyruvate, L-glutamine
Potential Allergens: None known from DMEM itself, but always check for cross-contamination in the workspace
Eye Contact: Rinse eyes gently with water for several minutes, remove contact lenses if present
Skin Contact: Wash affected area with soap and water
Inhalation: Move to fresh air, seek medical help if symptoms continue
Ingestion: Rinse mouth out, seek medical advice
Further Action: Consult health personnel if irritation or symptoms persist
Suitable Extinguishing Media: Dry chemical, foam, carbon dioxide, water spray
Fire Hazards: The mixture itself is not highly flammable; containers might rupture if exposed to extreme heat
Combustion Byproducts: Carbon oxides, nitrogen oxides if burned at high temperatures
Protective Equipment: Standard fire-fighting suits, including self-contained breathing apparatus
Cleanup: Use gloves and a mask, sweep up powder or soak liquid with absorbent material, dispose of collected material safely
Spills: Avoid raising dust, ventilate area, wash down with water after removal, keep away from drains
Personal Protection: Gloves, lab coat, safety goggles
Handling: Avoid breathing dust or vapors, use only with proper local exhaust
General Tips: Keep containers tightly closed, label clearly, avoid contact with eyes or skin
Storage: Store in cool, dry, well-ventilated space, separate from food and animal feed, keep away from incompatible chemicals such as strong oxidizers
Engineering Controls: Use with laboratory fume hood or local exhaust
Personal Protective Equipment: Gloves, lab coat, safety goggles
Hygiene: Wash hands thoroughly after use, do not eat or drink in work area, avoid touching face while handling
Physical State: Powder or liquid
Color: Red (liquid form if phenol red is present), white/off-white (powder)
Solubility: Fully soluble in water
pH: Around 7.2–7.4 in solution with phenol red indicator present
Odor: Low odor, not pungent
Boiling Point: Not relevant under normal lab use
Melting Point: Not relevant under normal lab use
Stability: Stable under recommended storage and use conditions
Reactivity: Can degrade if mixed with strong acids, alkalis, or oxidizing agents
Polymerization: Not prone to hazardous polymerization
Decomposition Products: Releases carbon oxides and nitrogen oxides in fire
Acute Effects: Not acutely toxic in small lab-scale exposures
Potential Health Hazards: Minor skin or eye irritation, mild gastrointestinal upset if ingested
Long-term Exposure: No evidence for chronic effects in humans for standard lab use
Sensitization: No known risk of allergic reaction from ingredients
Carcinogenicity, Reproductive Toxicity: Not classified as carcinogenic or teratogenic for intended use
Aquatic Impact: Some ingredients, especially in large quantities, might contribute to nutrient loading or mild toxicity in aquatic environments
Bioaccumulation: Ingredients do not persist or accumulate significantly in the environment
Degradation: Biodegrades in soil and water
General Practice: Limit release to surface water, collect waste for disposal
Preferred Method: Dispose of unused DMEM through approved chemical waste facilities
Avoid: Pouring large volumes into drains or water systems
Container Disposal: Rinse and recycle if possible, follow institutional chemical waste protocols
Legal Requirements: Follow city or country regulations for hazardous or laboratory chemical disposal
Regulated: Not usually listed as hazardous during transport
Packaging: Ship in tightly sealed containers, avoid extremes in temperature and contamination
Labeling: Use proper labeling for laboratory chemicals, not for human consumption
Accidental Spills: Clean up promptly in the field
Country/Region Rules: Subject to workplace chemical safety standards in US, EU, Canada, Asia
Hazard Classification: Not classified as dangerous under global standards for laboratory use
Right-to-Know Laws: Material hazards must be accessible to laboratory staff, SDS provided
Institutional Requirements: Training and review of safe handling practices required before use
Environmental Requirements: Minimize environmental release, follow reporting protocols for spills
