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Section I.Chemical Product and Company Identification
    Chemical Name 4-Aminoazobenzene Hydrochloride
    Portland OR
    Synonym        p-Aminoazobenzene Hydrochloride    
    Chemical Formula        C6H5N:NC6H4NH2•HCl    
    CAS Number        3457-98-5    

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Section II.        Composition and Information on Ingredients    
    Chemical Name        CAS Number Percent (%)        TLV/PEL        Toxicology Data    
    4-Aminoazobenzene Hydrochloride        3457-98-5        Min. 97.0 (T)        This chemical is classified as a        Rat LD50 (oral) 1250 mg/kg    
    possible carcinogen. There is
    no acceptable exposure limit
    for a carcinogen.

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Section III. Hazards Identification
    Acute Health Effects        Irritating to eyes and skin on contact. Inhalation causes irritation of the lungs and respiratory system. Inflammation of the    
    eye is characterized by redness, watering, and itching. Skin inflammation is characterized by itching, scaling, reddening,
    or, occasionally, blistering. Follow safe industrial hygiene practices and always wear proper protective equipment when
    handling this compound.
    Chronic Health Effects        CARCINOGENIC EFFECTS : Possible carcinogen.    
    MUTAGENIC EFFECTS : Not available.
    TERATOGENIC EFFECTS : Not available.
    DEVELOPMENTAL TOXICITY: Not available.
    There is no known effect from chronic exposure to this product. Repeated or prolonged exposure to this compound is
    not known to aggravate existing medical conditions.

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Section IV.        First Aid Measures    
    Eye Contact        Check for and remove any contact lenses. DO NOT use an eye ointment. Flush eyes with running water for a minimum    
    of 15 minutes, occasionally lifting the upper and lower eyelids. Seek medical attention. Treat symptomatically and
    supportively.
    Skin Contact        If the chemical gets spilled on a clothed portion of the body, remove the contaminated clothes as quickly as possible,    
    protecting your own hands and body. Place the victim under a deluge shower. If the chemical touches the victim's
    exposed skin, such as the hands: Gently and thoroughly wash the contaminated skin with running water and non-abrasive
    soap. Be particularly careful to clean folds, crevices, creases and groin. Cover the irritated skin with an emollient. Seek
    medical attention. Treat symptomatically and supportively. Wash any contaminated clothing before reusing.
    Inhalation        If the victim is not breathing, perform artificial respiration. Loosen tight clothing such as a collar, tie, belt or waistband. If    
    breathing is difficult, oxygen can be administered. Seek medical attention. Treat symptomatically and supportively.
    Ingestion        INDUCE VOMITING by sticking finger in throat. Lower the head so that the vomit will not reenter the mouth and throat.    
    Loosen tight clothing such as a collar, tie, belt, or waistband. If the victim is not breathing, administer artificial respiration.
    Examine the lips and mouth to ascertain whether the tissues are damaged, a possible indication that the toxic material
    was ingested; the absence of such signs, however, is not conclusive. Seek immediate medical attention and, if possible,
    show the chemical label. Treat symptomatically and supportively.

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Section V. Fire and Explosion Data
    Auto-Ignition        Not available.    
    Flammability        Combustible.    
    Flash Points        Flammable Limits        Not available.    
    Not available.
    Combustion Products        These products are toxic carbon oxides (CO, CO 2), nitrogen oxides (NO, NO2), halogenated compounds.    
    WARNING: Highly toxic HCl gas is produced during combustion.
    Fire Hazards
    No specific information is available regarding the flammability of this compound in the presence of various materials.
    Explosion Hazards        Risks of explosion of the product in presence of mechanical impact: Not available.    
    Risks of explosion of the product in presence of static discharge: Not available.
    No additional information is available regarding the risks of explosion.
    Continued on Next Page
    4-Aminoazobenzene Hydrochloride
    Fire Fighting Media
    SMALL FIRE: Use DRY chemicals, CO 2, water spray or foam.
    and Instructions        LARGE FIRE: Use water spray, fog or foam. DO NOT use water jet.    

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Section VI.        Accidental Release Measures    
    Spill Cleanup        Harmful solid. Irritating solid.    
    Instructions        In case of a spill and/or a leak, always shut off any sources of ignition, ventilate the area, and exercise caution. Use a    
    shovel to put the material into a convenient waste disposal container. Consult federal, state, and/or local authorities for
    assistance on disposal.

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Section VII. Handling and Storage
    Handling and Storage        IRRITANT. POSSIBLE CARCINOGEN. Keep away from heat and sources of ignition. Mechanical exhaust required.    
    When not in use, tightly seal the container and store in a dry, cool place. Avoid excessive heat and light. DO NOT
    Information
    breathe dust. In case of insufficient ventilation, wear suitable respiratory equipment. If you feel unwell, seek medical
    attention and show the label when possible. Treat symptomatically and supportively. Avoid contact with skin and eyes.
    Always store away from incompatible compounds such as oxidizing agents.

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Section VIII. Exposure Controls/Personal Protection
    Engineering Controls        Use process enclosures, local exhaust ventilation, or other engineering controls to keep airborne levels below    
    recommended exposure limits. If user operations generate dust, fume or mist, use ventilation to keep exposure to
    airborne contaminants below the exposure limit.
    Personal Protection        Splash goggles. Lab coat. Dust respirator. Boots. Gloves. A MSHA/NIOSH approved respirator must be used to avoid    
    inhalation of the product. Suggested protective clothing might not be sufficient; consult a specialist BEFORE handling
    this product.
    Exposure Limits        This chemical is classified as a possible carcinogen. There is no acceptable exposure limit for a carcinogen.    

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Section IX. Physical and Chemical Properties
    Physical state @ 20°C        Dark blue to violet powder.        Solubility    
    Not available.
    Not available.
    Specific Gravity
    Molecular Weight        233.7        Partition Coefficient    
    Not available.
    Boiling Point        Vapor Pressure    
    Not available.        Not available.    
    Melting Point        227 to 228°C (440.6 to 442.4°F)        Vapor Density        Not available.    
    Refractive Index        Not available.        Volatility        Not available.    
    Critical Temperature        Not available.        Odor        Not available.    
    Viscosity        Not available.        Taste        Not available.    

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Section X.        Stability and Reactivity Data    
    Stability    

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This material is stable if stored under proper conditions. (See Section VII for instructions)    
    Conditions of Instability
    Avoid excessive heat and light.
    Incompatibilities
    Reactive with oxidizing agents.

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Section XI. Toxicological Information
    RTECS Number        BY8235000    
    Routes of Exposure        Eye contact. Inhalation. Ingestion.    
    Toxicity Data        Rat LD50 (oral) 1250 mg/kg    
    CARCINOGENIC EFFECTS : Possible carcinogen.
    Chronic Toxic Effects
    MUTAGENIC EFFECTS : Not available.
    TERATOGENIC EFFECTS : Not available.
    DEVELOPMENTAL TOXICITY: Not available.
    There is no known effect from chronic exposure to this product. Repeated or prolonged exposure to this compound is not
    known to aggravate existing medical conditions.
    Acute Toxic Effects        Irritating to eyes and skin on contact. Inhalation causes irritation of the lungs and respiratory system. Inflammation of the    
    eye is characterized by redness, watering, and itching. Skin inflammation is characterized by itching, scaling, reddening,
    or, occasionally, blistering. Follow safe industrial hygiene practices and always wear proper protective equipment when
    handling this compound.
    Continued on Next Page
    4-Aminoazobenzene Hydrochloride

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Section XII.        Ecological Information    
    Ecotoxicity        Not available.    
    Environmental Fate        Not available.    

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Section XIII. Disposal Considerations
    Recycle to process, if possible. Consult your local or regional authorities. You may be able to dissolve or mix material with
    Waste Disposal
    a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber system. Observe all
    federal, state, and local regulations when disposing of this substance.

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Section XIV. Transport Information
    DOT Classification        Not a DOT controlled material (United States).    
    PIN Number        Not applicable.    
    Proper Shipping Name
    Not applicable.
    Packing Group (PG)        Not applicable.    
    DOT Pictograms

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Section XV. Other Regulatory Information and Pictograms
    TSCA Chemical Inventory        This compound is ON the EPA Toxic Substances Control Act (TSCA) inventory list.    
    (EPA)
    WHMIS Classification
    Not controlled under WHMIS (Canada).
    (Canada)
    EINECS Number (EEC) 222-390-3
    EEC Risk Statements        R36/37/38- Irritating to eyes, respiratory system and skin.    
    R45- May cause cancer.
    Japanese Regulatory Data

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SECTION 16 - ADDITIONAL INFORMATION
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