Product Name: Cetylpyridinium Bromide Hydrate
Synonyms: 1-Hexadecylpyridinium Bromide Hydrate
Chemical Formula: C21H38BrN·xH2O
CAS Number: 6004-24-6
Manufacturer: [Specify supplier/manufacturer information]
Recommended Uses: Laboratory reagent, antiseptic ingredient, microbiological applications, oral hygiene products
Supplier Contact: [Phone number], [Email], [Address for emergencies]
GHS Classification: Acute Toxicity (Oral, Category 4), Skin Irritation (Category 2), Eye Irritation (Category 2A), Hazardous to Aquatic Environment (Category 1)
Signal Word: Warning
Hazard Statements: Harmful if swallowed; Causes skin irritation; Causes serious eye irritation; Very toxic to aquatic life
Pictograms: Exclamation mark, Environment
Precautionary Statements: Avoid contact with eyes and skin; Wear protective gloves/eye protection; Do not eat, drink, or smoke when using this product; Avoid release to the environment
Substance: Cetylpyridinium Bromide Hydrate
Chemical Identity: Pyridinium, 1-hexadecyl-, bromide, hydrate
Concentration: > 98% (remainder: water of hydration)
Impurities: No significant impurities expected based on supplier specifications
Inhalation: Move to fresh air; seek medical attention if symptoms persist
Skin Contact: Wash with soap and water for at least 15 minutes; remove contaminated clothing; seek medical attention for persistent irritation
Eye Contact: Rinse cautiously with water for several minutes; remove contact lenses; continue rinsing and seek medical attention
Ingestion: Rinse mouth; do not induce vomiting; seek immediate medical help
Suitable Extinguishing Media: Use water spray, alcohol-resistant foam, dry chemical, or carbon dioxide
Unsuitable Extinguishing Media: Avoid high pressure water streams
Specific Hazards: May produce bromide fumes and nitrogen oxides under fire conditions
Protective Equipment for Firefighters: Full protective gear and self-contained breathing apparatus
Explosion Data: Dusts may form explosive mixtures with air; avoid sources of ignition
Personal Precautions: Evacuate area; ventilate; prevent contact with eyes and skin
Protective Equipment: Use face protection, gloves, and lab coat
Environmental Precautions: Prevent further leakage if safe to do so; avoid discharge to drains
Methods for Clean-Up: Sweep up and place in a suitable closed container for disposal; avoid generating dust; clean area thoroughly with water
Precautions for Safe Handling: Handle in a chemical fume hood; avoid inhaling dust or vapors; do not get in eyes, on skin, or clothing
Hygiene Measures: Wash hands thoroughly after handling; do not eat, drink, or smoke near this product
Storage Conditions: Store in a cool, dry, and well-ventilated place; keep container tightly closed; protect from light and moisture
Incompatibilities: Avoid strong oxidizers, acids, and reducing agents
Engineering Controls: Use local exhaust ventilation; work in chemical fume hoods
Personal Protective Equipment: Lab coat, safety goggles, gloves resistant to chemicals, NIOSH-approved respirator if dust generated
Exposure Limits: No occupational exposure limits established by ACGIH or OSHA for this compound
Environmental Controls: Prevent material from entering water systems or soil; use closed systems if possible
Appearance: White to off-white crystalline powder
Odor: Faint, characteristic
pH: 6–8 (1% aqueous solution)
Melting Point: 121–125°C (dehydrates at higher temperatures)
Boiling Point: Not applicable (decomposes on heating)
Solubility: Soluble in water and ethanol
Density: About 1.1 g/cm3
Vapor Pressure: Not significant at room temperature
Partition Coefficient (Log Kow): Estimated 2.5–4 (limited data)
Flash Point: Not applicable (non-flammable)
Decomposition Temperature: >170°C
Evaporation Rate: Not available
Chemical Stability: Stable under recommended storage conditions
Hazardous Reactions: Reacts with strong oxidizing agents, strong acids
Conditions to Avoid: Heat, moisture, light, incompatibles
Decomposition Products: Toxic fumes of bromide, nitrogen oxides, carbon monoxide, carbon dioxide
Acute Toxicity: Oral LD50 (rat): ~450 mg/kg
Skin Irritation: Causes irritation with prolonged contact
Eye Irritation: Causes severe irritation
Respiratory Effects: Dusts can irritate respiratory tract
Sensitization: Data not conclusive for skin or respiratory sensitization
Chronic Effects: Chronic exposure may affect mucous membranes
Carcinogenicity: Not classified as carcinogen by IARC, NTP, or OSHA
Mutagenicity: No data indicating mutagenic effects
Other Organ Toxicity: No evidence of organ-specific toxicity at standard exposure levels
Aquatic Toxicity: Very toxic to aquatic organisms, LC50 (fish, 96 h): <1 mg/L
Persistence and Degradability: Not readily biodegradable; persists in environment
Bioaccumulation: Potential for moderate bioaccumulation
Mobility in Soil: Likely to bind to solids; limited mobility
Other Adverse Effects: Harmful to aquatic flora and fauna even at low concentrations
Waste Disposal Method: Dispose of product and contaminated packaging as hazardous waste according to local, regional, and national regulations
Special Precautions: Do not contaminate surface water or drains; incineration recommended by licensed chemical waste disposer
Uncleaned Containers: Rinse thoroughly before disposal; label appropriately
UN Number: 3077
UN Proper Shipping Name: Environmentally Hazardous Substance, Solid, N.O.S. (Cetylpyridinium Bromide Hydrate)
Transport Hazard Class: 9
Packing Group: III
Marine Pollutant: Yes
Special Provisions: Handle with care to avoid release
DOT/ADR/IATA Classification: Matches UN numbers and class
US TSCA Status: Listed
EU REACH Status: Registered or pre-registered
SARA Title III (Section 311/312): Acute health hazard, Environmental hazard
California Proposition 65: Not listed
WHMIS Classification (Canada): D2B (Toxic), D2A (Aquatic toxicity)
Other Regulatory Status: Subject to notification per chemical control legislation in relevant jurisdictions
