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Section I.Chemical Product and Company Identification
    Chemical Name 1,5-Dimethylnaphthalene
    Portland OR
    Synonym        Not available.    
    Chemical Formula        C10H6(CH3)2    
    CAS Number        571-61-9    

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Section II.        Composition and Information on Ingredients    
    Chemical Name        CAS Number Percent (%)        TLV/PEL        Toxicology Data    
    1,5-Dimethylnaphthalene        571-61-9        Min. 99.0(GC) Not available.        Not available.    

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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.
    CARCINOGENIC EFFECTS : Not available.
    Chronic Health Effects
    MUTAGENIC EFFECTS : Not available.
    TERATOGENIC EFFECTS : Not available.
    DEVELOPMENTAL TOXICITY: Not available.
    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. 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        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, 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.    
    Flammable Limits
    Flash Points        Not available.    
    Not available.
    Combustion Products        These products are toxic carbon oxides (CO, CO 2).    
    Fire Hazards
    Not available.
    Risks of explosion of the product in presence of mechanical impact: Not available.
    Explosion Hazards
    Risks of explosion of the product in presence of static discharge: Not available.
    Fire Fighting Media
    SMALL FIRE: Use DRY chemical powder.
    and Instructions        LARGE FIRE: Use water spray, fog or foam. DO NOT use water jet.    
    Consult with local fire authorities before attempting large scale fire-fighting operations.
    Continued on Next Page
    1,5-Dimethylnaphthalene

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Section VI.        Accidental Release Measures    
    Spill Cleanup        Irritating material.    
    Instructions        Use a shovel to put the material into a convenient waste disposal container. Finish cleaning the spill by rinsing any    
    contaminated surfaces with copious amounts of water. Consult federal, state, and/or local authorities for assistance on
    disposal.

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Section VII. Handling and Storage
    Handling and Storage        IRRITANT. 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 dust.
    Information
    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. Suggested protective clothing might not be sufficient; consult    
    a specialist BEFORE handling this product. Be sure to use a MSHA/NIOSH approved respirator or equivalent.
    Exposure Limits        Not available.    

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Section IX. Physical and Chemical Properties
    Solubility
    Physical state @ 20°C        Solid. (White crystalline powder.)        Not available.    
    Not available.
    Specific Gravity
    Molecular Weight        156.23        Partition Coefficient        Not available.    
    Boiling Point        265 to 266°C (509 to 510.8°F)        Vapor Pressure        Not applicable.    
    Melting Point        80 to 82°C (176 to 179.6°F)        Vapor Density        Not available.    
    Not available.        Volatility        Not available.    
    Refractive Index
    Critical Temperature        Odor        Not available.    
    Not available.
    Not available.        Not available.    
    Viscosity        Taste    

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Section X.        Stability and Reactivity Data    

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

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Section XI. Toxicological Information
    RTECS Number        Not available.    
    Routes of Exposure        Eye Contact. Ingestion. Inhalation.    
    Not available.
    Toxicity Data
    Chronic Toxic Effects        CARCINOGENIC EFFECTS : Not available.    
    MUTAGENIC EFFECTS : Not available.
    TERATOGENIC EFFECTS : Not available.
    DEVELOPMENTAL TOXICITY: Not available.
    Repeated or prolonged exposure to this compound is not known to aggravate existing medical conditions.
    Irritating to eyes and skin on contact. Inhalation causes irritation of the lungs and respiratory system. Inflammation of the
    Acute Toxic Effects
    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
    1,5-Dimethylnaphthalene

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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 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        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 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        Not available.    
    (Canada)
    EINECS Number (EEC) 209-338-5
    EEC Risk Statements        R36/37/38- Irritating to eyes, respiratory system and skin.    

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SECTION 16 - ADDITIONAL INFORMATION
N/A