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Product: Minimum Essential Medium Eagle
Form: Clear to light pink liquid
Primary Use: Cell culture in laboratory research
Typical Constituents: Balanced salts, amino acids, vitamins, glucose, phenol red, sodium bicarbonate
Intended Users: Researchers, academic labs, biotechnology professionals
Hazard Type: Not classified as hazardous under standard chemical hazard guidelines
Possible Health Risks: Mild skin or eye irritation from frequent or direct contact
Chronic Effects: No strong evidence links regular use to long-term health problems in humans
Routes of Exposure: Accidental ingestion, inhalation of aerosols or direct contact with mucous membranes
Key Components: Sodium chloride, potassium chloride, calcium chloride, magnesium sulfate, sodium phosphate, L-glutamine, essential amino acids (like L-leucine, L-lysine), vitamins (thiamine, riboflavin, pyridoxine), sodium pyruvate, glucose, phenol red indicator
Percentages: Each compound is present below 1% by weight, except sodium chloride and glucose, which typically measure higher
Other Ingredients: Water for injection, sodium bicarbonate for buffering
Inhalation: Remove person from exposure, seek fresh air
Skin Contact: Wash area with plenty of soap and water
Eye Contact: Rinse eyes cautiously with water for several minutes
Ingestion: Rinse mouth, drink water if conscious
Medical Attention: Persistent symptoms need medical advice, otherwise treat as minor exposure
Suitable Extinguishing Media: Use water spray, carbon dioxide, or dry chemical powder as needed
Combustion Products: Decomposition at very high temperatures may cause unknown by-products, mostly water and carbon-rich gases
Precaution for Firefighters: Standard lab protective clothing and breathing apparatus
Unusual Hazards: Mixture does not fuel fire, but containers may burst from heat
Personal Protection: Use gloves and eye protection when cleaning up
Spill Control: Absorb spilled liquid with paper towels or inert absorbent material
Clean-up: Wash area with water and detergent
Prevention of Secondary Hazards: Avoid slip risk by immediate clean-up; ensure waste does not enter drains where not permitted
Handling: Avoid unnecessary exposure or ingestion; use in a ventilated area; avoid eating and drinking near cultures
Storage: Store in a refrigerator at recommended temperatures, usually 2-8°C, to preserve function
Container Advice: Keep in tightly closed, clearly labeled bottles; avoid direct sunlight
Incompatibility: Store away from strong acids, bases, or incompatible chemicals
Engineering Controls: Use in biosafety cabinet or well-ventilated space for any procedures that may create aerosols
Personal Protection: Wear lab coat, eye protection, and non-permeable gloves
Hygiene: Wash hands after handling; do not touch face before washing
Environmental Controls: Prevent spillage from reaching drains unless proper containment and disposal procedures are in place
Appearance: Clear to reddish liquid, may show slight cloudy sediment if poorly stored
Odor: Mild, not strong or distressing
pH: Roughly 7–7.5 (with sodium bicarbonate buffering)
Solubility: Fully soluble in water
Boiling Point: Similar to water (around 100°C)
Freezing Point: Near 0°C
Density: Comparable to water
Chemical Stability: Remains stable at recommended temperatures and normal conditions
Reactivity: Does not react violently with other substances under normal lab uses
Hazardous Reactions: None identified under standard laboratory operations
Decomposition: Avoid heat and light as both can degrade nutrients and vitamins, reducing effectiveness
Acute Toxicity: No evidence of acute toxicity in typical lab use
Chronic Effects: Regular exposure through skin or inhalation does not cause known harm
Irritation: Liquid may cause minor, temporary irritation if splashed into eyes or on sensitive skin
Sensitization: No widespread reports of allergic reaction or sensitization
Carcinogenicity: None of the constituents are classified as carcinogens by IARC or similar bodies for their use in cell culture
Persistence: Most constituents readily break down, especially salts and sugars
Toxicity to Environment: Minimal, but excess nutrients may affect aquatic life in large spills
Bioaccumulation: No evidence suggesting problematic bioaccumulation
Mobility: Liquid rapidly disperses in water, does not persist in soil once diluted
Preferred Method: Dispose as laboratory waste in compliance with local authority and institutional rules
General Advice: Dilute with plenty of water if entry to drains is permitted, or collect in suitable containers for hazardous waste collection
Infectious Material: Treat as biohazard if contaminated with human or animal cells, inactivation before disposal is standard practice
Transport Regulation: Not considered hazardous under most shipping standards
Precautions: Ship in sealed containers with care to avoid spills
Temperature Control: Ship under refrigerated conditions when required, prevent freeze-thaw cycles
Classification: Not classified as hazardous material under GHS for lab use
Regulatory Status: Not listed on major hazardous chemical inventories for academic and research use
Local Regulations: Labs should follow institutional biosafety and chemical safety protocols for handling and disposal, comply with local legislation regarding waste and spills
