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MSDS for Montelukast Sodium

Identification

Product Name: Montelukast Sodium
Chemical Name: Sodium 1-[[[(1R)-1-[3-[2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl]cyclopropyl]acetate
Synonyms: Singulair, sodium 1-[({[(1R)-1-[3-[(E)-2-(7-chloroquinolin-2-yl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio}methyl)cyclopropyl]acetate
CAS Number: 151767-02-1
Recommended Uses: Active pharmaceutical ingredient for management of asthma and allergic rhinitis
Manufacturer Information: [Your company’s details, address, emergency contact number]

Hazard Identification

GHS Classification: Not classified as a hazardous substance under GHS
Physical Hazards: Dry powder poses minimal fire risk but can create dust clouds
Health Hazards: May cause skin or eye irritation. Inhalation of large amounts could irritate respiratory tract. Individuals sensitive to sulfides could experience allergic reactions.
Environmental Hazards: No long-term ecological effects known; avoid disposal in large quantities into waterways.
Label Elements: Not required to display specific pictograms for this compound according to most regulations.

Composition / Information on Ingredients

Chemical Name: Montelukast Sodium
Purity: ≥ 98%
Molecular Formula: C35H35ClNNaO3S
Molecular Weight: 608.2 g/mol
Impurities: Trace process-related organic impurities at less than 0.2% each
Stabilizing Additives: None intentionally added

First Aid Measures

Eye Contact: Rinse thoroughly with plenty of water for at least 15 minutes. Remove contact lenses if present and easy to do. Seek medical attention for persistent irritation.
Skin Contact: Wash thoroughly with soap and water. Remove contaminated clothing as soon as possible. If irritation occurs or persists, consult medical personnel.
Inhalation: Move to fresh air. Support breathing as needed. For persistent cough, breathing difficulty, or other symptoms, seek medical attention.
Ingestion: Rinse mouth, drink water if conscious. Do not induce vomiting unless instructed by medical personnel. Seek medical attention if large quantities are consumed or if symptoms develop.
Symptoms and Effects: Dust can cause irritation of mucous membranes, skin, and eyes. Over-exposure may cause gastrointestinal disturbances.

Fire-Fighting Measures

Suitable Extinguishing Media: Water spray, carbon dioxide, alcohol-resistant foam, or dry chemical powder.
Hazards from Combustion: Burning produces carbon oxides, sulfur oxides, nitrogen oxides, hydrogen chloride, and sodium oxide fumes.
Protective Equipment for Firefighters: Use self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Special Fire-Fighting Procedures: Prevent runoff from firefighting from entering water sources or public sewers.

Accidental Release Measures

Personal Precautions: Use personal protective gear including gloves, goggles, and dust mask to avoid inhalation or skin contact. Ventilate area and approach leaking powder from upwind.
Environmental Precautions: Prevent product dust from entering drains or waterways. Notify relevant authorities if large-scale spillage contaminates the environment.
Methods for Cleanup: Collect spilled powder with an industrial vacuum or by moistening with water to reduce dust generation. Collect in appropriate containers for disposal. Clean area thoroughly with water.

Handling and Storage

Handling: Avoid inhaling dust and contact with skin or eyes. Work in well-ventilated environments. Use local exhaust ventilation.
Storage: Keep in tightly closed containers, stored in a cool, dry place away from incompatible substances like oxidizers. Protect from light and moisture. Maintain at 2-8°C for long-term stability.
Hygiene Practices: Wash hands and face after handling powder. Do not eat, drink, or smoke in areas where this product is handled.

Exposure Controls and Personal Protection

Occupational Exposure Limits: No established exposure limits for montelukast sodium
Engineering Controls: Use process enclosures, local exhaust ventilation, or other engineering controls to minimize airborne exposure.
Personal Protective Equipment: Wear safety glasses with side shields, chemical-resistant gloves, laboratory coat, and dust mask or respirator if dust levels are above the recommended threshold.
Environmental Measures: Prevent further leakage or spillage if safe to do so. Avoid discharge into the environment.

Physical and Chemical Properties

Appearance: White to off-white powder or crystalline solid
Odor: Odorless
pH (1% aqueous): 7–9
Melting Point: 137°C
Boiling Point: Not applicable (decomposes)
Solubility: Freely soluble in water, methanol, ethanol; poorly soluble in dichloromethane
Partition Coefficient (log P): 3.2
Vapor Pressure: Negligible
Relative Density: About 1.2–1.3 g/cm³
Flammability: Not classified as flammable, but may burn at high temperatures

Stability and Reactivity

Chemical Stability: Stable under recommended storage conditions. Sensitive to prolonged exposure to light and moisture.
Hazardous Reactions: No dangerous reactions known during normal processing and storage.
Incompatible Materials: Strong oxidizing agents, strong acids
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, nitrogen oxides, sulfur oxides, sodium oxide, hydrogen chloride

Toxicological Information

Acute Toxicity: Oral LD50 in rodents above 2000 mg/kg. Inhalation and dermal exposure show low acute toxicity.
Skin Corrosion/Irritation: Mild skin irritation possible after contact.
Eye Damage/Irritation: Can cause temporary discomfort or redness.
Respiratory Sensitization: Dust inhalation can cause coughing or sneezing; hypersensitization possible with repeated or prolonged exposure.
Chronic Toxicity: No long-term toxicity reported at therapeutic doses in humans. Animal testing did not show carcinogenic effects.
Reproductive Effects: No evidence of reproductive toxicity in animal studies; recommended precautions for women who are pregnant or breastfeeding.

Ecological Information

Ecotoxicity: No evidence of acute or chronic toxicity to aquatic organisms at typical environmental concentrations.
Persistence and Degradability: Not rapidly biodegradable; stable compound in the environment.
Bioaccumulation: Low potential for bioaccumulation
Mobility in Soil: Moderately mobile in soil due to solubility characteristics.
Other Adverse Effects: Avoid large-scale release into watercourses to reduce unknown risks to ecosystems.

Disposal Considerations

Waste Treatment: Dispose of in accordance with local, regional, and national regulations. Incineration preferred for large quantities.
Container Disposal: Clean and dispose of container as hazardous chemical waste.
Special Precautions: Prevent release to the environment during disposal; do not discharge into sewage systems or natural waters.

Transport Information

UN Number: Not regulated for transport
UN Proper Shipping Name: Not classified as hazardous for transport purposes
Transport Hazard Class(es): None
Packing Group: Not assigned
Environmental Hazards: Non-hazardous for marine and air transport
Special Precautions: Protect containers from physical damage during transit. Avoid moisture and exposure to direct sunlight.

Regulatory Information

Regulatory Compliance: Montelukast sodium complies with relevant US FDA, EMA, ICH, and WHO recommendations for pharmaceutical excipients.
OSHA Status: Not considered hazardous under US OSHA criteria.
SARA Title III: Not listed
TSCA Certification: Not regulated
REACH Status: Exempt as an active pharmaceutical substance in finished drug product.
Other Local Laws: Ensure reporting and management aligns with local workplace safety and handling requirements.