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Section I.Chemical Product and Company Identification
    Chemical Name Propyl Methanesulfonate
    Portland OR
    Synonym        Methanesulfonic acid, propyl ester (CA INDEX NAME);    
    Methanesulfonic Acid Propyl Ester
    Chemical Formula        C4H10O3S    
    CAS Number        1912-31-8    

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Section II.        Composition and Information on Ingredients    
    Toxicology Data
    Chemical Name        CAS Number Percent (%)        TLV/PEL    
    1912-31-8 Min. 98.0 (GC) Not available.        Not available.    
    Propyl Methanesulfonate

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Section III. Hazards Identification
    Acute Health Effects        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.
    Chronic Health Effects        CARCINOGENIC EFFECTS : Not available.    
    MUTAGENIC EFFECTS : Not available.
    TERATOGENIC EFFECTS : Not available.
    DEVELOPMENTAL TOXICITY: Reproductive effects.
    Rat TDLo Intraperitoneal 400 mg/kg, male 1 day prior to mating
    Toxic Effects:
    Effects on Fertility - Male fertility index
    Mouse TDLo Intraperitoneal 600 mg/kg, female 1 day prior to mating
    Toxic Effects:
    Effects on Fertility - Litter size
    Repeated or prolonged exposure to this compound is not known to aggravate existing medical conditions.

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Section IV.        First Aid Measures    
    Check for and remove any contact lenses. In case of contact, immediately flush eyes with plenty of water for at least 15
    Eye Contact
    minutes. Get medical attention.
    In case of contact, immediately flush skin with plenty of water. Remove contaminated clothing and shoes. Wash clothing
    Skin Contact
    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    
    Not available.
    May be combustible at high temperature.        Auto-Ignition    
    Flammability
    Flammable Limits        Not available.    
    Flash Points        Not available.    
    Combustion Products        These products are toxic carbon oxides (CO, CO2), sulfur oxides (SOx).    
    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.
    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
    Propyl Methanesulfonate

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Section VI.        Accidental Release Measures    
    Spill Cleanup        Harmful material. Possibly mutagenic material.    
    Absorb with an inert material and put the spilled material in an appropriate waste disposal. Consult federal, state, and/or local
    Instructions
    authorities for assistance on disposal.

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Section VII. Handling and Storage
    Handling and Storage        HARMFUL. POSSIBLE MUTAGEN. 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 gas/fumes/ vapor/spray.
    Information
    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 respective
    Engineering Controls
    threshold limit value. Ensure that eyewash station and safety shower is proximal to the work-station location.
    Splash goggles. Lab coat. Vapor respirator. Boots. Gloves. Suggested protective clothing might not be sufficient; consult a
    Personal Protection
    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
    Liquid. (Clear, colorless ~ light yellow.)        Solubility    
    Physical state @ 20°C        Not available.    
    1.15 (water=1)
    Specific Gravity
    138.19
    Molecular Weight        Partition Coefficient        Not available.    
    Boiling Point        110°C (230°F) @ 20 mmHg        Vapor Pressure        Not available.    
    Not available.        Not available.    
    Melting Point        Vapor Density    
    1.42        Volatility        Not available.    
    Refractive Index
    Not available.
    Critical Temperature        Not available.        Odor    
    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
    PB2680000
    RTECS Number
    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: Reproductive effects.
    Rat TDLo Intraperitoneal 400 mg/kg, male 1 day prior to mating
    Toxic Effects:
    Effects on Fertility - Male fertility index
    Mouse TDLo Intraperitoneal 600 mg/kg, female 1 day prior to mating
    Toxic Effects:
    Effects on Fertility - Litter size
    Repeated or prolonged exposure to this compound is not known to aggravate existing medical conditions.
    Harmful if ingested or inhaled. Minimize exposure to this material. Severe overexposure can result in injury or death.
    Acute Toxic Effects
    Follow safe industrial hygiene practices and always wear proper protective equipment when handling this compound.
    Continued on Next Page
    Propyl Methanesulfonate

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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        Not a DOT controlled material (United States).    
    Not applicable.
    PIN Number
    Proper Shipping Name        Not applicable.    
    Not applicable.
    Packing Group (PG)
    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) 217-619-9
    EEC Risk Statements        R20/21/22- Harmful by inhalation, in contact with skin and if swallowed.    
    R46- May cause heritable genetic damage.

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SECTION 16 - ADDITIONAL INFORMATION
N/A