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Product Name: 3,3'-Dimethoxy-4,4'-Diaminobiphenyl Hydrochloride
Synonyms: 4,4'-Diamino-3,3'-dimethoxybiphenyl hydrochloride, DADB HCl
Recommended Use: Chemical synthesis, laboratory reagent
Manufacturer: Chemical supply companies specializing in organic compounds
Contact Information: Provided by supplier or local distributor
Emergency Phone Number: Refer to local poison control center or Chemtrec
CAS Number: 2657-01-2
UN Number: Not classified
Product Code: Provided by supplier
Classification: Harmful if swallowed, may cause skin and eye irritation, respiratory tract irritation possible
Signal Word: Warning
Hazard Statements: H302 Harmful if swallowed; H315 Causes skin irritation; H319 Causes serious eye irritation
Pictograms: Exclamation mark
Precautionary Statements: Avoid breathing dust; Wash hands thoroughly after handling; Wear protective gloves, clothing, eye and face protection
Potential Health Effects: Inhalation may lead to coughing, throat discomfort; skin absorption possible; gastrointestinal distress after ingestion
Environmental Hazards: May present danger to aquatic organisms
Chemical Name: 3,3'-Dimethoxy-4,4'-Diaminobiphenyl Hydrochloride
Concentration: Above 98%
Chemical Formula: C14H16N2O2·HCl
Molecular Weight: 280.75 g/mol
Impurities: Trace biphenyls, residual solvents under 2%
Other components: None significant for classification
Inhalation: Remove person to fresh air. Provide respiratory support if needed. Seek medical attention for persistent symptoms.
Skin Contact: Remove contaminated clothing. Rinse skin thoroughly with plenty of water. Medical evaluation required if irritation develops.
Eye Contact: Gently rinse eyes with clean water for several minutes, lifting eyelids occasionally. Immediate medical attention recommended.
Ingestion: Rinse mouth; do not induce vomiting. Seek immediate medical evaluation. Never give anything by mouth to an unconscious person.
Notes to Physician: Treat symptomatically and provide supportive care for mucous membrane irritation or allergic response.
Suitable Extinguishing Media: Water spray, dry chemical, CO2, foam
Unsuitable Media: Avoid direct stream of water on burning chemical mass
Specific Hazards: Emits toxic gases such as nitrogen oxides, carbon monoxide/chloride vapors under fire conditions
Protective Equipment: Firefighters use self-contained breathing apparatus and full protective gear
Special Procedures: Approach fire from upwind, minimize run-off to waterways, cool exposed containers with water
Explosion Data: No sensitive properties reported; dust buildup may create risk in confined spaces
Spill Cleanup: Evacuate area, ventilate contaminated space, wear chemical-resistant gloves, safety goggles, and NIOSH-approved respirator if dust is generated
Containment: Prevent spread using inert absorbent material such as sand or vermiculite
Cleanup Procedures: Collect material in sealable containers for disposal, wash spill area with water and detergent
Personal Precautions: Avoid direct contact, prevent inhalation of dust, remove all sources of ignition
Environmental Precautions: Keep out of drains and open bodies of water, notify authorities in event of significant spillage
Handling: Use in chemical fume hood, avoid skin and eye contact, never handle without appropriate personal protection
Hygienic Practices: No open food or drink in lab areas, thorough hand-washing after handling, segregate from incompatible substances
Ventilation: Work in well-ventilated areas; local exhaust recommended
Storage Conditions: Store tightly sealed in a cool, dry place away from heat and light sources
Incompatible Materials: Strong acids, bases, oxidizing agents
Occupational Exposure Limits: No OSHA or ACGIH limits established; minimize exposure as much as possible
Engineering Controls: Fume hood or local exhaust ventilation, eyewash stations, safety showers
Personal Protective Equipment (PPE): Nitrile gloves, lab coat, safety goggles, NIOSH-approved dust respirator
Environmental Controls: Use closed systems or handle in ventilated enclosures wherever feasible
Work Practices: Avoid creating dust or aerosols; decontaminate tools and work surfaces after use
Appearance: White to light beige solid powder
Odor: Nearly odorless
pH (1% solution): Slightly acidic (pH ~4.5-5.0)
Melting Point: Approximately 260-270°C (decomposition possible above 250°C)
Boiling Point: Not available (decomposes)
Solubility: Soluble in water, methanol, slightly soluble in ethanol, insoluble in non-polar solvents
Vapor Pressure: Negligible at ambient conditions
Density: ~1.25 g/cm3
Partition Coefficient (log Kow): Not determined
Chemical Stability: Stable under recommended storage and handling temperatures
Reactivity: Reacts with strong oxidizers and acids
Hazardous Reactions: No data on hazardous polymerization; heat may cause decomposition
Hazardous Decomposition Products: Carbon oxides, hydrochloric acid, nitrogen oxides under fire or extreme conditions
Incompatible Materials: Strong bases, oxidizing agents, reactive metals
Conditions to Avoid: High temperatures, open flames, direct sunlight, moist air exposure
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Acute Toxicity: Oral toxicity LD50 data not available for this compound; structurally similar aromatic diamines are considered moderately toxic
Skin Corrosion/Irritation: Contact may cause moderate irritation
Serious Eye Damage/Irritation: Contact leads to watering, redness, potential injury
Respiratory Sensitization: Not established
Skin Sensitization: Data not sufficient, but allergic reactions possible
Carcinogenicity: Not classified by IARC, NTP, or OSHA, though closely related biphenyl amines have demonstrated carcinogenic potential
Mutagenicity: No animal or in vitro mutagenicity assay published
Symptoms of Exposure: Sore throat, skin redness, eye discomfort, delayed allergic response in sensitive individuals
Ecotoxicity: Specific acute/chronic aquatic toxicity values unknown; aromatic amines may harm aquatic organisms
Persistence and Degradability: Expected to be slowly biodegradable by soil and water microorganisms
Bioaccumulation Potential: Limited data, moderate risk based on structure
Mobility in Soil: Likely to bind to soils with organic matter
Other Adverse Effects: Potential risk to aquatic environments, contamination of water sources should be avoided
Waste Treatment Methods: Collect and contain waste; dispose through licensed hazardous waste contractor
Contaminated Packaging: Incinerate or treat as chemical waste according to local regulations
Uncleaned Packaging: Wash thoroughly before recycling or disposal
Disposal Restrictions: Do not dispose through regular municipal waste or release to water systems; follow regional and national hazardous waste laws
Special Disposal Recommendations: Keep detailed records for disposal; complete required documentation for transport and treatment
UN Number: Not assigned under current transport regulations
UN Proper Shipping Name: Not regulated for ground, sea, or air transport in most jurisdictions
Transport Hazard Class: Not applicable
Packing Group: Not applicable
Marine Pollutant: Not classified as a marine pollutant
Special Precautions: Package securely to avoid leaks
Labeling: Mark laboratory chemicals as toxic; observe hygiene during handling and transit
Limited Quantity Exemption: Large shipments require assessment under regional hazardous goods codes
OSHA Status: Not specifically listed as hazardous, treat as laboratory use chemical
TSCA: Listed or exempt; documentation available from supplier
DSL/NDSL (Canada): Check with local supplier for listing
REACH Status (EU): Exempt or subject to annual volume notification if over threshold
SARA Codes: Not applicable as of review
California Prop 65: Not listed; similar biphenyl amines are listed
Other National Regulations: Follow workplace chemical safety measures; consult national chemical tracking authorities
Chemical Safety Assessment: Available from manufacturer or supplier upon request
