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Product Name: Terbutryn
Chemical Name: 2-(tert-butylamino)-4-ethylamino-6-methylthio-1,3,5-triazine
CAS Number: 886-50-0
Use: Broad-spectrum herbicide for agricultural, non-crop, and household applications
Supplier: Various global chemical manufacturers and distributors
Emergency Contact: Local chemical emergency response center
GHS Classification: Acute toxicity (oral, dermal), skin and eye irritant, aquatic chronic hazard
Signal Word: Warning
Hazard Statements: Harmful if swallowed or in contact with skin; causes skin and eye irritation; toxic to aquatic life with long-lasting effects
Precautionary Statements: Avoid breathing dust, wash hands thoroughly after handling, use only outdoors or in a well-ventilated area, avoid release to the environment
Chemical Identity: Terbutryn
Active Ingredient Content: 98–100%
Impurities: May contain trace amounts of solvents, stabilizers, and by-products from synthesis, identity and levels depending on manufacturer
Inhalation: Move the exposed person to fresh air immediately. Seek medical attention if symptoms persist.
Skin Contact: Remove contaminated clothing. Wash affected area thoroughly with soap and water.
Eye Contact: Rinse with plenty of water for at least 15 minutes, lifting eyelids occasionally. Get medical advice.
Ingestion: Rinse mouth with water, do not induce vomiting unless instructed by a medical professional. Consult physician immediately.
Most Important Symptom/Effects: Nausea, headache, dizziness, skin and eye irritation
Immediate/Delayed Effects: Immediate effects often seen in acute exposure scenarios
Suitable Extinguishing Media: Dry chemical, CO₂, foam, water spray
Unsuitable Media: Direct water jet can spread contamination
Fire Hazards: Gives off toxic fumes including oxides of nitrogen, sulfur oxides, cyanide compounds
Protective Equipment for Firefighters: Self-contained breathing apparatus and full protective clothing to prevent contact with skin and eyes
Advice for Firefighters: Keep containers cool with water spray; prevent run-off from entering drains or watercourses
Personal Precautions: Avoid contact with eyes and skin, use personal protective equipment, ensure adequate ventilation
Environmental Precautions: Prevent contamination of soil, drains, and waterways
Cleanup Methods: Sweep up spillages without creating dust, collect in a suitable closed container for disposal, clean affected area with water and detergent
Additional Measures: Dispose according to local and national regulations
Handling: Handle in a well-ventilated area, avoid inhaling dust or vapor, wear suitable gloves, goggles, and protective clothing
Storage: Store in original packaging, tightly closed, in a dry, cool, well-ventilated place away from food and feedstuffs, keep away from out of reach of unauthorized personnel and children, prevent moisture ingress
Special Storage Conditions: Protect from heat, sparks, flames, direct sunlight, and incompatible materials such as strong acids and oxidizers
Occupational Exposure Limits: No established international occupational exposure limit, but minimize exposure as per good industrial hygiene
Engineering Controls: Local exhaust ventilation, closed process systems where feasible, prevent dust generation
Individual Protection: Use chemical-resistant gloves, safety goggles, face shields, long-sleeved clothing, and respiratory protection when dust or aerosols form
Hygiene Measures: Wash hands, face, and exposed areas thoroughly after handling, do not eat, drink, or smoke while using this product
Appearance: Off-white to yellowish crystalline powder
Odor: Faint, characteristic
Melting Point: 210–212°C
Boiling Point: Decomposes before boiling
Flash Point: Not applicable (solid)
Solubility: Slightly soluble in water; readily soluble in organic solvents such as acetone, ethanol, methanol
Vapor Pressure: Low at ambient temperatures
Density: Approximately 1.11 g/cm³ at 20°C
pH: 6–8 (1% aqueous suspension)
Partition Coefficient (log Kow): 3.4–4.2
Chemical Stability: Stable when stored and handled as recommended
Reactivity: Non-reactive under normal conditions
Hazardous Reactions: Avoid mixing with strong oxidizers or acids that cause decomposition
Decomposition Products: Toxic gases including nitrogen oxides, sulfur dioxide, and cyanide compounds may form under fire or thermal decomposition
Incompatibility: Strong oxidizers, acids, bases
Acute Toxicity: Oral LD50 (rat): 2,200 mg/kg, Dermal LD50 (rat): >2,000 mg/kg
Skin Irritation: Causes irritation based on animal studies
Eye Irritation: Irritant in animal models
Respiratory Sensitization: Not typically reported as a sensitizer
Chronic Effects: Prolonged exposure may lead to dermal effects and possible hepatic or renal function change
Carcinogenicity: Not classified by IARC, EPA, or ECHA
Mutagenicity/Teratogenicity: Studies show no mutagenic or teratogenic risk at low level exposures
Other Health Effects: Overexposure can produce nausea, vomiting, diarrhea, headache, dizziness
Toxicity to Aquatic Life: Toxic to fish and aquatic invertebrates, LC50 (fish, 96h): 5–10 mg/L
Toxicity to Birds: Low toxicity; oral LD50 (quail): >2,000 mg/kg
Persistence and Degradability: Moderately persistent in soil and water, breakdown by microbial activity
Bioaccumulation Potential: May bioaccumulate due to log Kow values, bioaccumulation factor in aquatic species under study
Mobility in Soil: Moderate mobility depending on organic matter and soil composition
Other Adverse Effects: Risk of run-off leading to groundwater or surface water contamination with frequent use
Waste Disposal: Dispose of content/container in accordance with local/regional/national/international regulations. Do not reuse empty containers. Triple rinse empty containers and puncture or crush for proper landfill or incineration.
Methods of Disposal: Incineration under controlled conditions is the recommended method. Avoid direct discharge to sewers or surface waters.
Additional Information: Consult environmental authorities for disposal compliance requirements. Do not contaminate water, food, or feed by waste disposal.
UN Number: 3077 (hazardous for road, rail, sea, air transport as an environmentally hazardous substance, solid, n.o.s.)
ADR/RID Class: 9 (Miscellaneous dangerous substances and articles), Packing Group III
IMDG/IMO: Marine pollutant, Class 9, Packing Group III
ICAO/IATA: Similar environmental hazard guidelines
Labelling Requirements: Environmental hazard symbol, proper shipping name printed clearly on package
Special Precautions: Keep away from food and feedstuffs, do not transport with incompatible materials such as strong acids or oxidizers
Hazard Classification: Classified as hazardous according to EU CLP, OSHA HCS, and corresponding global requirements
Registration Status: Registered for use in many jurisdictions subject to agricultural and environmental regulations
Labelling Requirements: GHS pictograms (exclamation mark, environment), hazard and precautionary statements, batch and expiry information
REACH Status (Europe): Registered under REACH, subject to restrictions
TSCA Status (US): Listed on TSCA Inventory
Other Information: Follow country-specific workplace and environmental limits, report large unintentional releases to environmental authorities
