Product Name: Aldehyde C-12 Methyl Nonyl Acetaldehyde
Synonyms: 2-Methylundecanal, MNA, Aldehyde C-12 MNA
Chemical Formula: C12H24O
CAS Number: 110-41-8
Manufacturer Contact: Refer to supplier
Uses: Fragrance ingredients, flavor formulations in cosmetics, personal care, household products
Emergency Contact: Local poison control or emergency medical support
Hazard Class: Skin and eye irritant, may cause respiratory tract irritation
GHS Label Elements: Signal word: Warning, Hazard statements: Causes serious eye irritation, Causes skin irritation, May cause respiratory irritation
Pictograms: Exclamation mark
Potential Health Effects: Skin exposure brings irritation, redness, and dryness; inhalation leads to coughing, throat irritation; accidental swallowing triggers abdominal discomfort
Chronic Effects: Repeated or prolonged contact increases risk of dermatitis; some sensitization possible
Environmental Hazards: Harmful to aquatic life with long lasting effects
Chemical Identity: 2-Methylundecanal
CAS Number: 110-41-8
Molecular Weight: 184.32 g/mol
Concentration: Greater than 95%
Impurities: Trace aliphatic aldehydes and hydrocarbons
Additives or Stabilizers: None
Inhalation: Move to fresh air, loosen tight clothing, seek medical guidance if symptoms persist
Skin Contact: Remove contaminated clothes, wash affected skin with soap and water, seek medical care for irritation
Eye Contact: Rinse eyes immediately with plenty of water for at least 15 minutes, keep eyelids apart, get medical help
Ingestion: Rinse mouth with water, never induce vomiting, seek immediate medical advice
Remarks: Always show this data sheet to emergency providers when possible
Suitable Extinguishing Media: Dry chemical, carbon dioxide (CO2), foam, water spray
Special Hazards: Vapors heavier than air, flammable liquid, risk of flashback, thermal decomposition releases irritating and toxic fumes: carbon monoxide, carbon dioxide
Protective Equipment: Self-contained breathing apparatus, protective clothing
Firefighting Advice: Remove containers from fire zone if possible, cool exposed containers with water spray, prevent discharge of runoff to sewers
Personal Precautions: Remove sources of ignition, evacuate unnecessary personnel, ensure adequate ventilation, use proper personal protective gear
Spill Cleanup Methods: Absorb with inert material like sand or earth, sweep into suitable closed container for disposal, wash spill area with water and detergent
Environmental Precautions: Prevent entry into sewers or water courses, notify authorities if product contaminates environment
Handling: Use in a well-ventilated area, avoid inhalation of vapors, prevent skin and eye contact, no eating or drinking during use, wash hands thoroughly after handling
Storage: Store in tightly closed container, keep away from direct sunlight, heat sources, open flames, store in cool, dry, well-ventilated area, segregate from oxidizing agents and strong acids
Packaging Materials: Use high-density polyethylene or glass containers
Special Considerations: Provide safety shower and eyewash stations in the working area
Occupational Exposure Limits: No established TLV or OSHA PEL, minimize workplace exposure
Engineering Controls: Local exhaust ventilation recommended, use explosion-proof equipment
Personal Protective Equipment: Safety glasses or goggles, chemical-resistant gloves (nitrile or neoprene), protective lab coat or apron, appropriate respiratory protection for high vapor concentrations
Hygiene Measures: Remove contaminated clothing, wash hands and face before breaks, prohibit food and smoking in working area
Environmental Exposure Controls: Limit discharge, implement spill control systems
Appearance: Colorless to pale yellow liquid
Odor: Powerful citrus, waxy, aldehydic aroma
Boiling Point: About 255 °C
Melting Point: Around -18 °C
Flash Point: Approximately 98 °C (closed cup)
Auto-Ignition Temperature: Above 200 °C
Vapor Pressure: Low at 20 °C, around 0.051 mmHg
Solubility: Slightly soluble in water, freely miscible with most organic solvents
Density: Roughly 0.83 g/cm³ at 25 °C
Partition Coefficient (log Kow): Estimated at 5.8
Chemical Stability: Stable under recommended conditions, sensitive to air and light over time
Reactivity: Reacts with strong oxidizing agents, acids, and bases; may polymerize under severe acidic or basic conditions
Hazardous Decomposition Products: Thermal breakdown generates carbon oxides, unidentified toxic fumes
Conditions to Avoid: Heat, flames, sparks, moisture, prolonged exposure to air
Incompatible Materials: Strong acids, oxidizing materials, reducing agents
Acute Toxicity: Oral LD50 in rats: approximately 5700 mg/kg, very low toxicity by dermal application
Skin Corrosion/Irritation: Causes localized inflammation, redness, roughness, may provoke allergic reactions with extended contact
Serious Eye Damage/Irritation: Strong irritant, possible conjunctivitis and temporary blurred vision
Respiratory Effects: Inhalation of vapors leads to mucous membrane irritation, coughing, possible headache
Sensitization: May induce skin sensitization, particularly in individuals with known fragrance allergies
Chronic Exposure: Prolonged/repeated contact may trigger allergic dermatitis, cumulative toxicity unlikely at low occupational exposures
Ecotoxicity: Acute aquatic toxicity, toxic to fish and invertebrates at high concentrations, log Kow indicates high potential for bioaccumulation in aquatic environments
Degradability: Subject to slow biodegradation; persistent in water and sediment under certain conditions
Mobility: Low mobility in soil, semi-volatile, tends to partition into organic phases
Other Environmental Effects: May harm plants and disrupt aquatic habitats with chronic release
Waste Methods: Incinerate in a chemical incinerator equipped with afterburner and scrubber, or dispose through licensed waste disposal contractor
Container Disposal: Triple rinse, puncture, and direct to approved disposal or recycling facility
Environmental Precautions: Do not contaminate surface water or soil during disposal, avoid discharge into drains
Waste Classification: Considered hazardous waste under local and international regulations
UN Number: 3271
Proper Shipping Name: Ethers, N.O.S. (contains Aldehyde C-12 MNA)
Transport Hazard Class: 9 (Miscellaneous hazardous materials)
Packing Group: III
Marine Pollutant: Classified as a marine pollutant
Special Transport Precautions: Protect containers from physical damage, check compatibility during transit, follow applicable regional and international guidelines
TSCA Status: Listed
EU Classification: Skin irritant (Xi), Dangerous for the environment (N)
REACH Status: Registered or pre-registered
SARA 313: Not listed
Hazard Symbol: Xi, N
Risk and Safety Phrases: R38, R41, R51/53 (Irritating to skin, risk of serious damage to eyes, toxic to aquatic organisms)
Other Regulations: Subject to workplace safety regulations, requires safety assessment before use in consumer products
