© 2026 Sinochem Nanjing Corporation,
All Right Reserved
Product Name: Chlorhexidine Diacetate
Chemical Name: 1,1'-Hexamethylenebis[5-(p-chlorophenyl)biguanide] diacetate
CAS Number: 56-95-1
Recommended Uses: Disinfectant, antiseptic, preservative
Supplier: [Details to be provided by manufacturer]
Emergency Contact: [Emergency number, poison control center]
Hazard Classification: Acute toxicity (oral, dermal), Skin irritant, Eye damage, Environmental hazard
GHS Label Elements: Signal Word: Danger; Pictograms: Corrosive, exclamation mark, environmental hazard
Hazard Statements: Causes severe skin burns and eye damage; toxic if swallowed; harmful to aquatic life with long lasting effects
Precautionary Statements: Avoid breathing dust or vapors; wear protective clothing and eye protection; wash hands after handling; store locked up
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Potential Health Effects: Serious damage to eyes and skin, respiratory irritation, headache, nausea, possible allergic reactions with repeated exposure
Chemical Identity: Chlorhexidine Diacetate
Concentration: Typically 98%-100% in raw form, lower in prepared solutions
Impurities: Trace residuals from synthesis, water content may vary depending on formulation
Molecular Formula: C22H30Cl2N10 · 2C2H4O2
Other Ingredients: No significant additives reported in pure form
Synonyms: 1,1'-Hexamethylenebis(5-(p-chlorophenyl)biguanide) diacetate
Inhalation: Remove source of exposure; move affected person to fresh air; provide oxygen if breathing is difficult; seek medical help
Skin Contact: Remove contaminated clothing; rinse skin thoroughly with water and mild soap; seek medical advice for irritation or burns
Eye Contact: Rinse opened eye continuously with running water for 15-20 minutes; do not allow victim to rub eyes; seek urgent medical attention
Ingestion: Rinse mouth with water; do not induce vomiting; never give anything by mouth to an unconscious person; seek immediate medical attention
Acute and Delayed Effects: Chemical burns, internal injury, allergic response possible
Instructions for Physicians: Symptomatic treatment, support airway and breathing, monitor for allergic or delayed effects
Suitable Extinguishing Media: Dry chemical powder, foam, carbon dioxide (CO2), water spray for larger fires
Specific Hazards: Emits toxic fumes such as hydrogen chloride, nitrogen oxides, carbon oxides during combustion
Special Protective Equipment: Self-contained breathing apparatus (SCBA); full protective suit
Firefighting Procedures: Approach fire upwind; keep containers cool with water spray; prevent runoff into water courses
Explosion Data: Not highly flammable but may decompose explosively at very high temperatures
Hazardous Combustion Products: Hydrogen chloride, acetic acid fumes, chlorinated organics
Personal Precautions: Evacuate area; avoid dust generation; wear chemical-resistant gloves, goggles, and respirator
Environmental Precautions: Prevent release to sewers and waterways; contain spill to minimize soil exposure
Methods for Containment: Cover spill with absorbent, non-combustible materials such as sand, clay, or diatomaceous earth
Clean-Up Procedures: Scoop up with non-sparking tools; store in clearly-labeled, sealed containers for disposal; decontaminate area with soap and water
Disposal: See Disposal Considerations section
In Case of Large Spill: Contact emergency services, use containment booms for liquid stock solutions
Handling: Handle in a well-ventilated space; avoid formation of dust or aerosols; do not eat, drink, or smoke during use; wash hands thoroughly after work
Safe Storage Conditions: Store in tightly closed, properly labeled containers; keep away from incompatible or reactive chemicals; protect from light and excessive heat
Storage Temperatures: Room temperature, ideally between 15°C and 30°C; avoid freezing or overheating
Incompatibilities: Strong oxidizers, acids, bases; avoid contact with anionic surfactants and soaps
Shelf Life Consideration: Check for product degradation, clumping, or unintended color changes before each use
Technical Precautions: Employ local exhaust ventilation if dusting likely
Occupational Exposure Limits: Not specifically established for this compound, minimize exposure as a precaution
Engineering Controls: Use fume hood or local exhaust; isolate processes generating dust or vapor
Personal Protective Equipment (PPE): Nitrile or butyl rubber gloves, chemical-splash goggles or full face shield, lab coat, protective footwear
Respiratory Protection: Use NIOSH-approved respirator if risk of inhalation exists
Hygiene Measures: Shower and change clothes after working with the chemical; keep contaminated clothing away from clean areas
Environmental Exposure Controls: Prevent spills from reaching drains; use spill trays and secondary containment; consult local environmental regulations for emissions
Physical State: Solid, crystalline powder
Color: White to off-white
Odor: Slight acetic acid odor
Odor Threshold: Not established
pH (of aqueous solution): 5.0 - 7.0
Melting Point/Range: 132–136°C
Boiling Point: Decomposes before boiling
Solubility: Soluble in water, sparingly soluble in ethanol
Vapor Pressure: Not significant at room temperature
Relative Density: Approximately 1.5 g/cm³
Partition Coefficient (log Kow): Estimated 2.5
Flash Point: Not applicable (decomposes)
Evaporation Rate: Not applicable
Critical Temperature: Not available
Chemical Stability: Stable under recommended conditions; avoid excess moisture, sunlight, and elevated temperatures
Reactivity: May react vigorously with oxidizers, acids, and bases
Conditions to Avoid: Extreme heat, open flame, strong freezing or thawing cycles
Incompatibilities: Anionic soaps, strong oxidizing agents, strongly alkaline or acid substances
Hazardous Decomposition: Hydrogen chloride, nitrogen oxides, acetic acid, carbon monoxide and dioxide
Polymerization: Not anticipated under normal storage and handling
Acute Toxicity: Oral LD50 (rat) approximately 500 mg/kg; skin LD50 (rabbit) 2,000 mg/kg
Skin Corrosion/Irritation: Caustic to skin; repeated contact leads to burns or chronic dermatitis
Serious Eye Damage/Irritation: Capable of causing blindness and permanent damage
Respiratory Sensitization: May cause coughing, wheezing, and respiratory tract irritation
Long-Term Effects: Prolonged exposure risk of allergic reactions, kidney or liver issues
Carcinogenicity: No direct evidence in humans, not listed by IARC or NTP
Mutagenicity: Insufficient evidence; negative in some bacterial assays
Reproductive Toxicity: No direct indication from available animal studies; keep exposures as low as possible
Toxicity to Aquatic Life: Very toxic to fish and aquatic invertebrates; EC50 (Daphnia magna) below 1 mg/L
Persistence and Degradability: Moderate; partially degradable in soil and water but not rapidly eliminated
Bioaccumulation Potential: Potential exists due to moderately high partition coefficient
Mobility in Soil: Low to moderate; can adsorb to sediments
Other Environmental Impacts: May contribute to antimicrobial resistance in water courses
Avoid Release: Prevent contamination of ground, surface, and drinking water supplies
Disposal Methods: Treat as hazardous chemical waste; incinerate in approved facility or use licensed chemical disposal contractor
Container Handling: Empty containers remain hazardous; triple-rinse, puncture, or chemically decontaminate before disposal
Local Regulations: Comply with national, regional, and local regulations for environmental and health safety
DOT RCRA Waste Code: Not specifically assigned; manage under general chemical waste requirements
Prevention Tips: Minimize waste by using product completely; avoid mixing with incompatible substances in disposal streams
UN Number: UN 2811 (for toxic solids, organic, n.o.s.)
UN Proper Shipping Name: Toxic solid, organic, n.o.s. (contains Chlorhexidine Diacetate)
Transport Hazard Class: 6.1 (toxic substances)
Packing Group: III (minor hazard); varies depending on local regulation
Transport Labeling: Skull & crossbones for toxicity
Special Transport Precautions: Secure packages to prevent accidental breakage; handle as per operator’s safety protocol; avoid excessive handling
Other Requirements: Notify carrier about hazardous constituents; documentation needed during import/export
OSHA Status: Considered hazardous under US regulations
EPA Status: Regulated as a pesticide in some formulations; restricted use for environmental reasons
TSCA Inventory: Listed
REACH (EU) Status: Notified and permitted for specific biocidal uses
SARA 313: Not listed
California Proposition 65: Not known to contain listed carcinogens
Other National or Regional Regulations: Medical and veterinary use subject to prescription and safe handling rules; subject to workplace exposure monitoring as a best practice
