Product Name: 4-Bromobenzaldehyde
Chemical Formula: C7H5BrO
Synonyms: Para-bromobenzaldehyde, 4-Bromo-1-formylbenzene
CAS Number: 1122-91-4
Recommended Use: Laboratory research, organic synthesis
Supplier: Reliable chemical suppliers in academic, industrial, and specialty chemical distribution sectors commonly provide this compound.
Emergency Contact: National Poison Control Centers, local emergency numbers, or supplier-provided emergency lines offer direct access in the case of large-scale chemical accidents.
GHS Classification: Causes skin and eye irritation, may cause respiratory irritation, harmful if swallowed
Signal Word: Warning
Hazard Statements: H315: Causes skin irritation; H319: Causes serious eye irritation; H335: May cause respiratory irritation
Pictograms: Exclamation mark for acute toxicity and irritant response
Precautionary Statements: Avoid breathing dust or vapors, wash thoroughly after handling, use only outdoors or in well-ventilated areas, wear protective gloves and eye/face protection
Routes of Exposure: Inhalation, skin contact, eye contact, ingestion, all of which can occur in workspaces that handle powders or volatile organic compounds regularly.
Chemical Name: 4-Bromobenzaldehyde
CAS Number: 1122-91-4
Concentration: 98–100% pure in standard laboratory and commercial preparations
Impurities: Trace organics or residual solvents may occasionally be present depending on the supplier and purification protocol used, though not expected above 2% for research-grade material.
Inhalation: Remove the affected individual to fresh air, keep at rest, seek medical attention if symptoms appear or persist such as coughing, respiratory discomfort, or dizziness.
Skin Contact: Remove contaminated clothing, rinse skin with plenty of water, use soap where available, obtain medical help if irritation or allergic reaction develops.
Eye Contact: Rinse carefully with water for at least 15 minutes, hold eyelids open during flushing, contact healthcare personnel if irritation, redness, or vision disturbances develop.
Ingestion: Rinse mouth, never induce vomiting, seek medical care immediately, providing material information if available; do not give anything by mouth to an unconscious person.
Most Important Symptoms: Burning sensation, redness, possible allergic responses or breathing discomfort, especially where exposure concentrations are high or accidental contact is prolonged.
Suitable Extinguishing Media: Use dry chemical, foam, carbon dioxide, or water spray, bearing in mind chemical compatibility and avoiding direct water stream on product spills where possible.
Specific Hazards: Emits toxic fumes such as hydrogen bromide and carbon oxides when heated or burned, poses additional hazard if fire occurs in a poorly ventilated laboratory or warehouse.
Protective Equipment: Firefighters should don self-contained breathing apparatus, chemical-resistant suit, and gloves to prevent skin or eye exposure.
Precautions: Move containers away from fire area where safe, cool fire-exposed containers with water, avoid inhaling combustion products.
Personal Precautions: Wear gloves, lab coat or apron, and safety goggles, avoid inhaling dust or vapors, ventilate affected area, keep unprotected individuals away until cleaning is completed.
Environmental Precautions: Prevent entry into sewers, soil, or surface water, use proper containment methods like absorbent pads or neutralizing agents where suitable.
Cleanup Methods: Collect spilled material with inert absorbent, place in sealed chemical waste container, decontaminate area with water or approved cleaning agent, ensure prompt and safe disposal following established waste protocols.
Handling: Use only in well-ventilated spaces fitted with local exhaust and, in some cases, chemical fume hoods; avoid direct skin and eye contact; practice good hygiene habits especially after manipulating powders or volatile substances.
Storage Conditions: Store tightly sealed in original container, keep in a cool, dry place away from direct sunlight, heat sources, or incompatible materials like strong oxidizers; ensure secondary containment for bulk storage.
Incompatibilities: Strong oxidizing agents and bases, store well away from such reactants on dedicated chemical shelving.
Occupational Exposure Limits: No specific government-mandated exposure limits, maintain workplace concentrations as low as reasonably achievable; follow standard chemical hygiene procedures.
Engineering Controls: Local exhaust, adequate general ventilation, possibly full containment in glove boxes or fume hoods for weighing or bulk transfers.
Personal Protective Equipment: Chemical goggles or face shield, latex or nitrile gloves, lab coat, and, where dust may form, NIOSH-approved particulate respirator; emergency eyewash and safety shower must be nearby.
Hygiene Measures: Wash hands and exposed skin before breaks and after task completion; avoid eating, drinking, or smoking in the laboratory.
Appearance: White to off-white crystalline powder
Odor: Faint aromatic, reminiscent of benzaldehyde but more pungent
Melting Point: 99–102°C
Boiling Point: 244–246°C
Flash Point: 105°C (closed cup)
Solubility: Sparingly soluble in water, readily soluble in ethanol, diethyl ether, and organic solvents
Vapor Pressure: Low at room temperature
Density: Approximately 1.6 g/cm³
pH: Not applicable (solid compound)
Partition Coefficient (log P): Estimated around 2.0, reflecting moderate lipophilicity.
Chemical Stability: Stable at ambient temperature and pressure in closed containers, as long as storage avoids extreme humidity or heat.
Hazardous Reactions: May react with strong oxidizing agents to release toxic or corrosive fumes.
Conditions to Avoid: Extreme heat, direct sunlight, excessive moisture, and open flames; uncontrolled mixing with oxidizers.
Decomposition Products: Under fire or strong degradation, produces hydrogen bromide, carbon monoxide, carbon dioxide, and trace brominated aromatics.
Acute Effects: Ingestion or significant dermal exposure can result in mouth, throat, and digestive tract discomfort, abdominal pain, headache, possible drowsiness or nausea.
Skin/Eye Irritation: Direct contact produces redness, itching, or inflammation based on experienced user reports during handling with inadequate PPE.
Inhalation: Irritates mucous membranes in nose, throat, and lungs; prolonged or high-level exposure increases discomfort.
Chronic Effects: No long-term studies in humans, but repeated exposure likely causes persistent irritation; allergic skin response possible.
Carcinogenicity, Mutagenicity, Reproductive Hazards: No conclusive evidence identified from available literature, though caution in regular use remains wise in all research and production environments.
Toxicity to Aquatic Life: Moderately toxic to aquatic organisms based on brominated aromatic structure; persistent if released in significant quantity to waterways or soils because of low water solubility.
Bioaccumulation Potential: Moderate tendency to bioaccumulate in aquatic environments; not highly volatile, so potential for long-range transport via air is low.
Mobility in Soil: Binds to soil particles, slow release expected; high spills may remain in surface soils unless remediated quickly.
Degradability: Eventually breaks down by photolysis and microbial metabolism but not considered readily biodegradable in natural systems.
Other Adverse Effects: Avoid release into sewer systems, surface water, or soils to minimize harm to local aquatic species and soil ecology.
Waste Disposal Methods: Collect solid waste and contaminated cleanup materials in tightly sealed, properly labeled containers for hazardous chemical disposal through licensed chemical waste providers.
Incineration: Recommended technique using approved facilities equipped for halogenated aromatic destruction.
Do Not: Flush to drain or dispose of with general waste; local laws may require specific reporting or documentation.
Unused Product: Offer excess and non-reusable material to professional disposal firms specializing in chemical waste.
Contaminated Packaging: Cleanse thoroughly before recycling or disposal, treat as hazardous unless verified clean by site safety officers.
UN Number: Not classified as dangerous for transport according to most regulatory standards when shipped in standard research quantities.
Proper Shipping Name: 4-Bromobenzaldehyde or Chemicals, not otherwise specified
Transport Hazard Class: None assigned under DOT/IATA/IMDG for typical laboratory-scale shipments
Packing Group: Not regulated
Special Precautions: Secure containers to prevent movement or accidental breakage; use impact-resistant outer packaging for bulk transit; include MSDS with shipment for rapid responder reference.
OSHA Status: Not specifically listed as a hazardous substance under OSHA Hazard Communication Standard, but standard lab chemical handling rules apply.
SARA Title III/Sec 313: Not identified as a reportable chemical under current regulations; monitoring local requirements always helps keep compliance in check.
TSCA Listing: Listed on US Toxic Substances Control Act Inventory
EU Regulation: Registered under REACH; subject to restrictions on direct sales to the public in some EU member states.
Other National Inventories: Covered under chemical control legislation in Canada, Australia, and Japan.
Labeling Requirements: Complies with GHS labelling for laboratory chemicals: hazard pictogram, signal word, hazard and precaution statements, supplier information must appear on all commercial packaging.
