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Chemical name: 3,5-Dibromo-4-Hydroxybenzonitrile
Chemical family: Brominated aromatic nitrile
Synonyms: No widely used synonyms reported
Molecular formula: C7H3Br2NO
Molecular weight: 292.92 g/mol
Physical form: Usually a pale to off-white crystalline solid
Odor: Odorless or very faint chemical odor
Common uses: Intermediate in chemical synthesis, sometimes found in specialty research
Unique identifiers: CAS Number 86487-64-1
GHS classification: Suspected eye irritant, may cause skin irritation, possible respiratory tract irritation
Signal word: Warning
Hazard pictograms: Exclamation mark for irritant effects
Hazard statements: Dust may cause moderate irritation to eyes, skin, and respiratory system; not expected to be acutely toxic in small single exposures; larger exposures could increase health risk
Precautionary statements: Prevent dust formation, use local exhaust, avoid breathing dust, wear skin and eye protection, wash hands thoroughly after handling
Ingredient: 3,5-Dibromo-4-Hydroxybenzonitrile
Purity: Generally above 98% for laboratory and industrial applications
Impurities: Trace residual solvents or brominated by-products in technical grades
Other hazardous components: Not typically present in significant concentrations
General guideline: Remove affected person to fresh air, rinse contaminated skin or eyes with water
If inhaled: Move into fresh air, seek medical attention if symptoms such as coughing or shortness of breath develop
If on skin: Remove any contaminated clothing, rinse skin under running water for at least 15 minutes, follow up with soap
If in eyes: Flush eyes gently under water for several minutes, remove contacts if present, get medical attention if irritation persists
If ingested: Rinse mouth with water, seek medical advice, do not induce vomiting without professional instruction
Suitable extinguishing media: Use water spray, CO2, dry chemical or foam
Unsuitable extinguishing media: Strong water jets can spread dust
Specific hazards: Combustion may produce hydrogen bromide, nitrogen oxides, carbon monoxide, and carbon dioxide
Protective equipment: Wear self-contained breathing apparatus, full protective suit, avoid inhalation of fire residues and contaminated water
Advice for firefighters: Keep firefighting run-off out of surface water systems, contain spill if safe
Personal precautions: Restrict access to affected area, avoid dust formation, ventilate space
Protective equipment: Gloves, goggles, dust mask or respirator
Environmental precautions: Prevent spilled material from reaching drains, surface water, and soil
Cleanup methods: Collect gently using damp methods or a vacuum with dust filter, transfer to sealable containers for proper waste disposal, avoid raising dust
Emergency procedures: Wash affected surfaces with plenty of water afterward, dispose of all contaminated cleaning materials as hazardous waste
Safe handling: Avoid direct contact, minimize dust, use only in well-ventilated areas or fume hoods, keep containers sealed
Storage conditions: Store in cool, dry, well-ventilated place, away from incompatible materials such as strong oxidizers and acids
Incompatibilities: Strong bases, strong oxidizing agents may react with the material
Transfer and dispensing: Always transfer material within a controlled environment to reduce spills and dust
Additional considerations: Secure storage to prevent access by untrained personnel
Engineering controls: Fume hoods, local exhaust ventilation recommended
Personal protective equipment (PPE): Chemical-resistant gloves, lab coat, safety goggles
Respiratory protection: Use NIOSH-approved dust respirator where dust concentrations exceed safety thresholds
Hygiene measures: Wash hands and exposed skin after handling, avoid eating or drinking in work area
Occupational exposure limits: No specific national or international occupational exposure limits set for this compound, rely on good laboratory practice
Physical state: Solid
Color: Off-white to pale tan
Odor: None or faint chemical
Melting point: Typically around 180-185°C
Boiling point: Data not easily available, decomposition may occur before boiling
Solubility: Low solubility in water, more soluble in organic solvents like ethanol and acetone
Density: Not precisely established, in the range typical for aromatic compounds with halogen substituents
pH: Not applicable as a solid
Vapor pressure: Negligible at room temperature
Partition coefficient (Log Kow): Likely moderately high due to bromination, promoting bioaccumulation risk
Chemical stability: Stable under normal ambient storage and handling conditions
Conditions to avoid: Elevated temperatures, direct sunlight, conditions facilitating strong acids or bases
Hazardous reactions: Contact with strong oxidizing agents could potentially cause hazardous decomposition
Decomposition products: Toxic fumes of hydrogen bromide, nitrogen oxides, possibly cyanide-containing gases
Reactivity profile: Not considered highly reactive, but routine containment still warranted
Routes of exposure: Inhalation, skin, and eye contact
Acute toxicity: Little concrete data for LD50, toxicity generally considered low for short-term exposure
Irritation: Dust may irritate eyes, mucous membranes, and upper respiratory tract
Sensitization: No strong evidence for skin sensitization, but repeated exposure could increase dermatitis risk
Chronic effects: No conclusive long-term toxicity data reported, caution still suggested due to its brominated nature
Carcinogenicity: Not listed as carcinogenic in major regulatory databases
Other health hazards: Avoid uncontrolled exposures, prioritize good hygiene, monitor for respiratory symptoms
Aquatic toxicity: Brominated organics tend to be persistent and may present hazards to aquatic organisms even at low levels
Persistence and degradability: Aromatic brominated chemicals degrade slowly in the environment
Bioaccumulation: Potential bioaccumulative substance due to high bromine content; may concentrate in aquatic life
Mobility in soil: Limited mobility, binds strongly to organic matter in soils
Other adverse effects: Increased scrutiny warranted for use in open settings, keep away from stormwater drains and waterways
Waste treatment methods: Gather waste in sealable, chemical-resistant containers
Regulatory disposal recommendations: Treat as hazardous chemical waste, rely on high-temperature incineration where available
Do not discharge: Never pour into drains, water bodies, or onto soil
Contaminated packaging: Dispose containers as hazardous waste, avoid reuse
UN Number: Not classified under most major dangerous goods regulations due to limited acute hazards
Proper shipping name: Ship as environmentally hazardous solid where regulations demand
Transport hazard class: Not officially regulated as a flammable, explosive, or highly toxic material
Special precautions: Avoid generating dust during transport, keep dry, ensure packaging is robust
Global inventories: Often not fully listed on major regulatory chemical inventories due to specialty use
SARA/EPCRA: Not listed as extremely hazardous by US agencies
REACH status: Not commonly registered under EU REACH as of latest data
Workplace controls: Rely on OSHA/NIOSH guidelines for particulate organics
Labeling: Follow GHS-recommended symbols and language for irritant substances
