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Section I.Chemical Product and Company Identification
    Chemical Name 3a,4,7,7a-Tetrahydroindene
    Portland OR
    Synonym        Bicyclo (4,3,0)nona-3,7-diene    
    Chemical Formula        C9H12    
    CAS Number        3048-65-5    

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Section II.        Composition and Information on Ingredients    
    Chemical Name        CAS Number Percent (%)        TLV/PEL        Toxicology Data    
    3a,4,7,7a-Tetrahydroindene        3048-65-5        Min. 98.0 Not available.        Rat LD50 (oral) 3730 mg/kg    
    Rabbit LD50 (dermal) 14,100 mg/kg
    (GC)
    Mouse LD50 (oral) 3500 mg/kg

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Section III. Hazards Identification
    Acute Health Effects        No specific information is available in our data base regarding the toxic effects of this material for humans. However,    
    exposure to any chemical should be kept to a minimum. Skin and eye contact may result in irritation. May be harmful if
    inhaled or ingested. Always follow safe industrial hygiene practices and 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.
    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
    Not available.
    Auto-Ignition
    Flammability        Combustible.    
    Flammable Limits
    Flash Points        Not available.    
    Not available.
    Combustion Products        These products are toxic carbon oxides (CO, CO 2).    
    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
    3048-        3a,4,7,7a-Tetrahydroindene    
    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        Flammable liquid.    
    Keep away from heat and sources of ignition. Mechanical exhaust required. Stop leak if without risk. Absorb with DRY
    Instructions
    earth, sand or other non-combustible material. DO NOT touch spilled material. 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
    FLAMMABLE. Reactive with strong oxidizers; may be ignited by heat, sparks, or flames. Vapors may travel to source of
    Handling and Storage
    ignition and flash back. Tightly seal container and store in a cool place. Closed containers may explode from heat of a
    Information
    fire. Empty containers may pose a fire risk. Evaporate residue under a fume hood if possible. Ground all equipment
    containing material. Keep away from heat and sources of ignition. Mechanical exhaust required. Avoid excessive heat
    and light. Do not breathe gas, fumes, vapor or spray. 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
    Provide exhaust ventilation or other engineering controls to keep the airborne concentrations of vapors below their
    Engineering Controls
    respective threshold limit value. Ensure that eyewash station and safety shower is proximal to the work-station location.
    Personal Protection        Splash goggles. Lab coat. Vapor 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
    Physical state @ 20°C        Liquid.        Solubility    
    Not available.
    0.93
    Specific Gravity
    Molecular Weight        120.19        Partition Coefficient    
    Not available.
    Boiling Point        Vapor Pressure    
    160°C (320°F)        Not available.    
    Not available.        Not available.    
    Melting Point        Vapor Density    
    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        NK8750000    
    Routes of Exposure        Eye contact. Inhalation. Ingestion.    
    Toxicity Data        Rat LD50 (oral) 3730 mg/kg    
    Rabbit LD50 (dermal) 14,100 mg/kg
    Mouse LD50 (oral) 3500 mg/kg
    CARCINOGENIC EFFECTS : Not available.
    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        No specific information is available in our data base regarding the toxic effects of this material for humans. However,    
    exposure to any chemical should be kept to a minimum. Skin and eye contact may result in irritation. May be harmful if
    inhaled or ingested. Always follow safe industrial hygiene practices and wear proper protective equipment when handling
    this compound.
    Continued on Next Page
    3a,4,7,7a-Tetrahydroindene

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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        CLASS 3: Flammable liquid.    
    PIN Number
    Proper Shipping Name
    Hydrocarbons, liquid, 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 ON the EPA Toxic Substance Control Act (TSCA) inventory.    
    (EPA)
    WHMIS Classification
    Not controlled under WHMIS (Canada).
    (Canada)
    EINECS Number (EEC) Not available.
    EEC Risk Statements        Not available.    

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SECTION 16 - ADDITIONAL INFORMATION
N/A