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Product Name: 3-Bromo-1,2-Dimethylbenzene
Chemical Formula: C8H9Br
Synonyms: 3-Bromo-o-xylene
CAS Number: 585-76-2
Manufacturer: Major chemical suppliers and specialty chemical distributors
Recommended Uses: Laboratory chemical, synthesis intermediate, research applications
Emergency Phone: Refer to the supplier’s safety contacts listed on specific container labels or shipping papers
GHS Classification: Flammable liquid (Category 4), Acute toxicity (oral, Category 4), Skin irritation (Category 3), Eye irritation (Category 2B)
Label Elements: Flame symbol, exclamation mark
Signal Word: Warning
Hazard Statements: Combustible liquid, Harmful if swallowed, May cause slight skin irritation, Causes eye irritation
Precautionary Statements: Keep away from heat, sparks, or open flames, Avoid breathing vapors, Wear eye and skin protection, Wash thoroughly after handling, Do not eat, drink, or smoke when using the chemical
Chemical Name: 3-Bromo-1,2-dimethylbenzene
Common Name: 3-Bromo-o-xylene
Concentration: 95–100%
Impurities: Trace organic and halogenated compounds (usually less than 5%, depending on batch and supplier), Not specified as hazardous under GHS
Inhalation: Remove the affected person to fresh air, keep at rest in a position comfortable for breathing, Seek medical attention in case of persistent symptoms such as headache, dizziness, or respiratory irritation
Skin Contact: Immediately flush with plenty of water and mild soap for at least 15 minutes, Remove contaminated clothing and wash before reuse, Medical attention may be required if irritation develops
Eye Contact: Rinse cautiously with water for at least 15 minutes, Remove contact lenses if present and easy to do, Continue rinsing, Seek medical attention if irritation persists
Ingestion: Rinse mouth with water, Do not induce vomiting unless instructed by medical personnel, Seek immediate medical attention if feeling unwell, Never give anything by mouth to an unconscious person
Extinguishing Media: Use dry chemical powder, foam, carbon dioxide, or water spray, High volume water jets should be avoided as the substance may float on water and spread
Specific Hazards: Vapors may form explosive mixtures with air, Combustion produces toxic gases, including hydrogen bromide, carbon oxides, and potentially irritating fumes, Containers may burst if heated
Firefighters’ Protective Equipment: Self-contained breathing apparatus and full protective gear required, Stay upwind to avoid inhalation of toxic vapors, Rapid evacuation of personnel from area recommended if conditions worsen
Other Information: Cool exposed containers with water spray to prevent pressure buildup, Prevent runoff from fire control from entering soil, sewers, or waterways
Personal Precautions: Ventilate area, Avoid breathing vapor, Use chemical-resistant gloves, goggles, and suitable protective clothing, Remove all ignition sources from the area
Environmental Precautions: Prevent further leakage or spillage if safe to do so, Contain spill and keep it from sewage systems, drains, or bodies of water, Notify local authorities if environmental contamination occurs
Methods for Cleanup: Soak up spill with inert absorbent material such as sand or earth, Place in chemical waste container with tight-fitting lid, Ensure area is decontaminated and thoroughly ventilated, Dispose of in accordance with local regulations
Precautions for Safe Handling: Handle in well-ventilated spaces, Use spark-proof tools and explosion-proof equipment, Keep away from foods and incompatible substances, Avoid direct contact with skin, eyes, and clothing, Prohibit smoking or use of open flames nearby
Conditions for Safe Storage: Store in original, tightly closed containers in a cool, dry, well-ventilated place, Protect from direct sunlight, sources of ignition, heat, and moisture, Segregate from oxidizers, acids, and bases, Clearly label storage containers with product information and hazard warnings
Storage Limitations: Separate from incompatible chemicals, Limit access to trained personnel only, Regularly inspect storage area for leaks or degradation
Workplace Exposure Limits: No established occupational exposure limits for 3-Bromo-1,2-dimethylbenzene from OSHA, ACGIH, or NIOSH
Engineering Controls: Use chemical fume hood or effective local exhaust ventilation, Emergency shower and eyewash stations nearby recommended
Personal Protective Equipment (PPE): Chemical splash goggles or faceshield, Nitrile or neoprene gloves, Standard laboratory coat or flame-retardant clothing, Use approved respirators if the chemical is airborne above recommended limits or ventilation is inadequate
Hygiene Measures: Wash hands after handling, Prohibit eating and drinking in chemical work areas, Remove contaminated clothing and wash before reuse
Appearance: Colorless to pale yellow liquid
Odor: Aromatic, characteristic odor
Molecular Weight: 185.07 g/mol
Boiling Point: 223–225°C
Melting Point: Not determined (generally stays liquid at room temperature)
Flash Point: 96°C
Vapor Pressure: 0.05 mmHg at 25°C
Solubility: Insoluble in water, Miscible with many organic solvents (alcohols, ethers, chloroform)
Density: About 1.34 g/cm³ at 20°C
pH: Not applicable (neutral organic substance)
Partition Coefficient (log Kow): Estimated near 4.2, indicating significant hydrophobic behavior
Chemical Stability: Stable under recommended handling and storage conditions
Reactivity: Avoid strong oxidizing agents, strong acids, and bases, May react with alkali metals and strong reducing agents
Hazardous Decomposition Products: Produces toxic gases such as bromine, hydrogen bromide, and carbon oxides upon thermal decomposition or combustion
Polymerization: Not expected to undergo hazardous polymerization under normal use conditions
Likely Routes of Exposure: Inhalation, ingestion, dermal, and ocular
Acute Effects: Irritates skin and eyes, Harmful if swallowed, May cause headache, dizziness, or respiratory tract irritation if inhaled
Chronic Effects: Prolonged skin contact may cause dermatitis, Long-term exposure data are limited, No known link to carcinogenicity, mutagenicity, or reproductive toxicity from available data
Toxicity Data: Oral LD50 (rat): >2000 mg/kg (estimated based on structural analogs), Data on inhalation and dermal toxicity are limited
Irritation and Sensitization: Evidence suggests mild to moderate irritation, Sensitization risks cannot be completely ruled out without further testing
Aspiration Risk: No conclusive evidence but should be handled carefully due to solvent-like nature
Ecotoxicity: Limited data, but expected to be toxic to aquatic organisms due to aromatic and brominated structure
Persistence and Degradability: Not readily biodegradable, Persistence in soils and sediments likely
Bioaccumulation: Likely to bioaccumulate because of hydrophobic properties and log Kow value
Mobility in Soil: Low water solubility predicts low to moderate mobility; potential for persistence in the environment
Other Adverse Effects: Environmental release should be avoided, May disrupt aquatic life if discharged into waterways
Disposal Methods: Dispose as hazardous organic chemical waste through certified disposal contractors, Do not pour into drains, sewers, or water supplies
Packaging Disposal: Containers and packaging should be decontaminated and disposed according to local hazardous waste guidelines
Special Precautions: Ensure all personnel involved in disposal are trained in handling hazardous chemicals, Maintain complete records of disposal per regulatory requirements
UN Number: UN 2810
Proper Shipping Name: Toxic liquid, organic, n.o.s. (contains 3-Bromo-1,2-dimethylbenzene)
Transport Hazard Class: 6.1 (Toxic substances)
Packing Group: III (Moderate hazard)
Marine Pollutant: Yes, based on potential aquatic toxicity
Special Precautions: Keep away from incompatible goods, Follow regulatory requirements for packaging, labeling, and documentation, All personnel transporting should understand emergency spill and exposure procedures
SARA Title III (Sections 302/304/311/312/313): Not listed specifically
RCRA: No specific EPA hazardous waste number assigned, may be subject to state and local hazardous waste requirements
TSCA: Listed in the Toxic Substances Control Act (TSCA) inventory
REACH: Compliance with European Union REACH regulations as applicable
Other Regulations: Compliance with local, state, and national chemical safety, health, and environmental protection laws required, Consult supplier Safety Data Sheet for any additional country-specific regulatory designations and restrictions
