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Section I.Chemical Product and Company Identification
    Chemical Name 2-(1-Naphthyl)ethanesulfonyl Chloride
    Portland OR
    1-Naphthaleneethanesulfonyl Chloride
    Synonym
    C12H11ClO2S
    Chemical Formula
    CAS Number        104296-63-1    

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Section II.        Composition and Information on Ingredients    
    Chemical Name        CAS Number Percent (%)        TLV/PEL        Toxicology Data    
    2-(1-Naphthyl)ethanesulfonyl Chloride        104296-63-1        Min. 97.0 Not available.        Not available.    
    (Tit.)

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Section III. Hazards Identification
    Acute Health Effects        Corrosive to skin, eyes, and respiratory system. Liquid or spray mist may produce tissue damage, particularly in mucous    
    membranes of the eyes, mouth and respiratory tract. Skin contact may produce burns. Eye contact can result in corneal
    damage or blindness. Inhalation of the spray mist may produce severe irritation of respiratory tract, characterized by
    coughing, choking, or shortness of breath. Corrosive materials may cause serious injury if ingested.
    Harmful if ingested or inhaled. Minimize exposure to this material. Severe overexposure can result in injury or death.
    Follow safe industrial hygiene practices and always wear proper protective equipment when handling this compound.
    CARCINOGENIC EFFECTS : Not available.
    Chronic Health Effects
    MUTAGENIC EFFECTS : Not available.
    TERATOGENIC EFFECTS : Not available.
    DEVELOPMENTAL TOXICITY: Not available.
    Repeated exposure of the eyes to a low level of dust can produce eye irritation. Repeated skin exposure can produce
    local skin destruction, or dermatitis. Repeated inhalation of dust can produce varying degree of respiratory irritation or
    lung damage.

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Section IV.        First Aid Measures    
    Eye Contact        Check for and remove any contact lenses. In case of contact, immediately flush eyes with plenty of water for at least 15    
    minutes. Get medical attention.
    Skin Contact        In case of contact, immediately flush skin with plenty of water. Remove contaminated clothing and shoes. Wash clothing    
    before reuse. Thoroughly clean shoes before reuse. Get medical attention.
    Inhalation        If the victim is not breathing, perform mouth-to-mouth resuscitation. Loosen tight clothing such as a collar, tie, belt or    
    waistband. If breathing is difficult, oxygen can be administered. Seek medical attention if respiration problems do not
    improve.
    Ingestion        DO NOT INDUCE VOMITING. Loosen tight clothing such as a collar, tie, belt or waistband. If the victim is not breathing,    
    perform mouth-to-mouth resuscitation. 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.

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Section V.        Fire and Explosion Data    
    Auto-Ignition        Not available.    
    Flammability        May be combustible at high temperature.    
    Flash Points        Flammable Limits        Not available.    
    Not available.
    Combustion Products        These products are toxic carbon oxides (CO, CO2), sulfur oxides (SOx), halogenated compounds.    
    WARNING: Highly toxic HCl gas is produced during combustion.
    Fire Hazards
    Not available.
    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.
    Fire Fighting Media
    SMALL FIRE: Use DRY chemical powder.
    LARGE FIRE: Use water spray, fog or foam. DO NOT use water jet.
    and Instructions
    Consult with local fire authorities before attempting large scale fire-fighting operations.
    Continued on Next Page
    2-(1-Naphthyl)ethanesulfonyl Chloride

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Section VI.        Accidental Release Measures    
    Spill Cleanup        Corrosive material. Harmful material.    
    Stop leak if without risk. DO NOT get water inside container. DO NOT touch spilled material. Use water spray to reduce
    Instructions
    vapors. Prevent entry into sewers, basements or confined areas; dike if needed. Eliminate all sources of ignition.
    Consult federal, state, and/or local authorities for assistance on disposal.

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Section VII. Handling and Storage
    Handling and Storage        CORROSIVE. HARMFUL. REFRIGERATE. Keep container dry. Keep away from heat. 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 breathe
    Information
    dust. Never add water to this product. Wear suitable protective clothing. If you feel unwell, seek medical attention and
    show the label when possible. Treat symptomatically and supportively.
    Always store away from incompatible compounds such as oxidizing agents, alkalis (bases).

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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        Face shield. 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        Not available.    

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Section IX. Physical and Chemical Properties
    Solubility
    Physical state @ 20°C        Solid. (White-Reddish-Yellow Crystalline        Slightly soluble in toluene.    
    Powder.)
    Not available.
    Specific Gravity
    Molecular Weight        254.73        Partition Coefficient        Not available.    
    Boiling Point        Not available.        Vapor Pressure        Not applicable.    
    Melting Point        50°C (122°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, alkalis (bases), water, alcohols.    

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Section XI. Toxicological Information
    Not available.
    RTECS Number
    Eye Contact. Ingestion. Inhalation. Skin contact.
    Routes of Exposure
    Toxicity Data        Not available.    
    Chronic Toxic Effects        CARCINOGENIC EFFECTS : Not available.    
    MUTAGENIC EFFECTS : Not available.
    TERATOGENIC EFFECTS : Not available.
    DEVELOPMENTAL TOXICITY: Not available.
    Repeated exposure of the eyes to a low level of dust can produce eye irritation. Repeated skin exposure can produce
    local skin destruction, or dermatitis. Repeated inhalation of dust can produce varying degree of respiratory irritation or
    lung damage.
    Acute Toxic Effects        Corrosive to skin, eyes, and respiratory system. Liquid or spray mist may produce tissue damage, particularly in mucous    
    membranes of the eyes, mouth and respiratory tract. Skin contact may produce burns. Eye contact can result in corneal
    damage or blindness. Inhalation of the spray mist may produce severe irritation of respiratory tract, characterized by
    coughing, choking, or shortness of breath. Corrosive materials may cause serious injury if ingested.
    Harmful if ingested or inhaled. Minimize exposure to this material. Severe overexposure can result in injury or death.
    Follow safe industrial hygiene practices and always wear proper protective equipment when handling this compound.
    Continued on Next Page
    2-(1-Naphthyl)ethanesulfonyl Chloride

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

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Section XIII. Disposal Considerations
    Recycle to process, if possible. Consult your local regional authorities. You may be able to dissolve or mix material with a
    Waste Disposal
    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 the substance.

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Section XIV. Transport Information
    DOT Classification        DOT Class 8: Corrosive material.    
    PIN Number
    Proper Shipping Name
    Corrosive solid, acidic, organic, n.o.s.
    Packing Group (PG)        II    
    DOT Pictograms

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Section XV. Other Regulatory Information and Pictograms
    TSCA Chemical Inventory        This product is NOT on the EPA Toxic Substances Control Act (TSCA) inventory. The following notices are required by 40    
    CFR 720.36 (C) for those products not on the inventory list:
    (EPA)
    (i) These products are supplied solely for use in research and development by or under the supervision of a technically
    qualified individual as defined in 40 CFR 720.0 et sec.
    (ii) The health risks of these products have not been fully determined. Any information that is or becomes available will be
    supplied on an MSDS sheet.
    WHMIS Classification        CLASS E: Corrosive solid.    
    (Canada)
    EINECS Number (EEC)        Not available.    
    EEC Risk Statements        R20/21/22- Harmful by inhalation, in contact with skin and if swallowed.    
    R34- Causes burns.

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SECTION 16 - ADDITIONAL INFORMATION
N/A