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Material Safety Data Sheet: Hedione

Identification

Product Name: Hedione
Chemical Name: Methyl dihydrojasmonate
CAS Number: 24851-98-7
EC Number: 246-495-9
Recommended Uses: Fragrance ingredient in perfumes and cosmetics
Supplier Details: Contact local distributor or manufacturer
Emergency Contact: National Poison Control or company supplier contact

Hazard Identification

GHS Classification: Not classified as hazardous according to Regulation (EC) No 1272/2008
Main Hazards: Mild skin and eye irritation reported in sensitive individuals; environmental hazard for aquatic life in concentrated releases
Labels: None required under current regulations
Pictograms: None required
Signal Word: None
Hazard Statements: May cause mild irritation to eyes and skin
Precautionary Statements: Avoid inhalation and prolonged exposure; prevent direct contact with eyes and skin
Other Risks: Not considered explosive, not oxidizing, not a known carcinogen

Composition / Information on Ingredients

Chemical Identity: Methyl dihydrojasmonate (Hedione)
Purity: ≥98%
Synonyms: 2-(2-methylpropyl)-cyclopentanone acetate, Jasmonic acid methyl ester
Impurities Contributing to Hazard: None above regulatory thresholds
Molecular Formula: C13H20O3
Molecular Weight: 224.30 g/mol

First Aid Measures

Inhalation: Move breathing persons to fresh air; consult a physician if symptoms appear
Skin Contact: Wash area thoroughly with plenty of water; remove contaminated clothing
Eye Contact: Rinse eyes with water for at least 15 minutes, lifting eyelids to flush; seek medical advice if irritation persists
Ingestion: Rinse mouth; do not induce vomiting; obtain medical attention if feeling unwell
Symptoms: Mild and passing discomfort such as redness or stinging; most effects addressable by basic decontamination
Supportive Care: Provide symptomatic relief based on local protocols

Fire-Fighting Measures

Flammability: Low; not classified as highly flammable
Extinguishing Media: Use dry chemical, carbon dioxide, water spray, or foam
Unsuitable Media: Do not use a direct water jet which may spread fire
Special Hazards: Vapors may form flammable mixtures above flash point; combustion can release carbon monoxide, carbon dioxide, and other hazardous gases
Protective Actions: Evacuate area; use self-contained breathing apparatus and protective clothing
Fire/Explosion Data: Containers may build up pressure if involved in fire
Fire Fighting Precautions: Approach from upwind side; cool exposed containers

Accidental Release Measures

Personal Protection: Wear protective gloves, goggles, and suitable clothing
Spill Procedure: Absorb with inert material like sand or earth; collect and seal for proper disposal
Environmental Protection: Prevent entry into drains or waterways
Clean-Up: Ventilate area; wash residues with water and detergent
Disposal of Waste: Transfer waste to properly labeled containers for recycling or proper disposal

Handling and Storage

Handling: Work in well-ventilated spaces; avoid inhaling vapors and preventing skin or eye contact
Hygiene Practices: Wash hands thoroughly after use; do not eat, drink, or smoke during handling
Storage Conditions: Keep container tightly closed in a cool, dry, and well-ventilated place
Incompatibilities: Strong oxidizing or reducing agents; avoid direct sunlight and moisture
Packaging Materials: Use original packaging or compatible containers to prevent leaks
Specific Uses Mentioned: Safe for use in regulated concentrations for perfumery

Exposure Controls and Personal Protection

Workplace Exposure Limits: No established occupational exposure limits
Engineering Controls: Ensure good ventilation and use process enclosures if available
Respiratory Protection: Use mask for sensitive persons in case of inadequate ventilation
Eye Protection: Wear chemical safety goggles
Skin Protection: Wear protective gloves; apron or coveralls if contact likely
Hygiene Measures: Wash thoroughly after handling; keep work clothes separate

Physical and Chemical Properties

Appearance: Clear, colorless to pale yellow liquid
Odor: Delicate, floral, jasmine-like scent
Odor Threshold: Not established
pH: Not applicable
Melting Point: Not determined
Boiling Point: 310°C at 1013 hPa
Flash Point: 113°C (closed cup method)
Evaporation Rate: Not determined
Flammability: Not classified as highly flammable
Vapor Pressure: 0.0014 hPa at 20°C
Vapor Density: Heavier than air
Relative Density: 0.99 – 1.01 g/cm³ at 20°C
Solubility: Slightly soluble in water; mixes with alcohols and oils
Partition Coefficient (n-octanol/water): log Kow = 3.3 (estimated)
Auto-ignition Temperature: >200°C
Decomposition Temperature: Not determined
Viscosity: 4.2 mm²/s at 20°C

Stability and Reactivity

Chemical Stability: Stable under normal storage and handling conditions
Reactivity: Minimal; does not react violently with most materials
Conditions to Avoid: Excessive heat, open flames, direct sunlight, moisture
Incompatible Materials: Strong acids, bases, and oxidizing agents
Hazardous Decomposition: Combustion may generate carbon oxides
Hazardous Polymerization: Will not occur under normal conditions

Toxicological Information

Acute Oral Toxicity: LD50 (rat) >5000 mg/kg; considered very low toxicity
Dermal Toxicity: LD50 (rabbit) >5000 mg/kg
Inhalation Toxicity: Not expected to pose acute inhalation hazard
Skin Irritation: Low potential; possible mild irritation in some sensitive users
Eye Irritation: Mildly irritating in high concentrations
Sensitization: No significant sensitizing effects observed under normal conditions
Chronic Toxicity: Not classified as carcinogenic, mutagenic, or toxic to reproduction
Other Effects: Not known to cause long-term health impacts at occupational exposure levels

Ecological Information

Ecotoxicity: Low; not expected to bioaccumulate or disrupt aquatic environments in typical use concentrations
Biodegradability: Readily biodegradable in soil and water under aerobic conditions
Bioaccumulative Potential: Low, based on log Kow
Mobility in Soil: Low to moderate mobility
Aquatic Toxicity: LC50 (fish) >100 mg/L; EC50 (daphnia) >100 mg/L
Other Adverse Effects: Avoid concentrated spills in waterways

Disposal Considerations

Waste Treatment Methods: Dispose of in accordance with local, regional, national, and international regulations
Product Disposal: Do not release into sewage systems; incinerate or landfill at approved sites
Contaminated Packaging: Clean with appropriate solvent and dispose as chemical waste
Special Precautions: Prevent run-off to ground or surface waters; avoid uncontrolled discharge

Transport Information

UN Number: Not regulated for transport
Transport Hazard Class: Not classified as dangerous goods
Packaging Group: Not assigned
Shipping Name: Fragrance Compound (Contains Hedione)
Special Precautions for Transport: Keep upright, avoid damage to containers
Transport in Bulk: Not applicable
Environmental Hazards: None identified for transport

Regulatory Information

EU Regulations: Substance not classified for supply under CLP Regulations; subject to general requirements for chemical safety in workplaces
US Regulations: TSCA inventory listed; not subject to specific SARA Title III, CERCLA, or RCRA controls
Canada: DSL/NDSL listed; no specific restrictions
Australia: Listed on AICS
Other International Inventories: Check regional inventories
Restrictions: Max concentrations for use set by IFRA standards for fragrances
Labeling Requirements: Not required for consumer products, follows general workplace safety rules