---

Section 1. IDENTIFICATION OF THE SUBSTANCE/MIXTURE
  Product identifiers
    Product name        : 1,3-Bis[(phenylseleno)methyl]benzene    
    CAS-No.        : 239448-30-7    
  Relevant identified uses of the substance or mixture and uses advised against
    Identified uses        : Laboratory chemicals, Manufacture of substances    
  
  

---

Section 2. HAZARDS IDENTIFICATION
  Classification of the substance or mixture
  Classification according to Regulation (EC) No 1272/2008 [EU-GHS/CLP]
    Acute toxicity, Oral (Category 3)
    Acute toxicity, Inhalation (Category 3)
    Acute toxicity, Dermal (Category 3)
  Classification according to EU Directives 67/548/EEC or 1999/45/EC
    Toxic by inhalation, in contact with skin and if swallowed.
  Label elements
  Labelling according Regulation (EC) No 1272/2008 [CLP]
    Pictogram
    Signal word        Danger    
    Hazard statement(s)
    H301 + H311 + H331        Toxic if swallowed, in contact with skin or if inhaled    
    Precautionary statement(s)
    P261        Avoid breathing dust.    
    P280        Wear protective gloves/ protective clothing.    
    P301 + P310        IF SWALLOWED: Immediately call a POISON CENTER or doctor/    
    physician.
    P311        Call a POISON CENTER or doctor/ physician.    
    Supplemental Hazard        none    
    Statements
  According to European Directive 67/548/EEC as amended.
    Hazard symbol(s)
    R-phrase(s)
    R23/24/25        Toxic by inhalation, in contact with skin and if swallowed.    
    S-phrase(s)
    S36/37        Wear suitable protective clothing and gloves.    
    S45        In case of accident or if you feel unwell, seek medical advice immediately    
    (show the label where possible).
  Other hazards - none

---

Section 3. COMPOSITION/INFORMATION ON INGREDIENTS
  Substances
    Formula        : C20H18Se2    
    Molecular Weight        : 416,28 g/mol    
    Component        Concentration    
  1,3-Bis[(phenylseleno)methyl]benzene
    CAS-No.        239448-30-7        -    

---

Section 4. FIRST AID MEASURES
  Description of first aid measures
  General advice
    Consult a physician. Show this safety data sheet to the doctor in attendance.
  If inhaled
    If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.
  In case of skin contact
    Wash off with soap and plenty of water. Take victim immediately to hospital. Consult a physician.
  In case of eye contact
    Flush eyes with water as a precaution.
  If swallowed
    Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.
  Most important symptoms and effects, both acute and delayed
    To the best of our knowledge, the chemical, physical, and toxicological properties have not been
    thoroughly investigated.
  Indication of any immediate medical attention and special treatment needed
    no data available

---

Section 5. FIREFIGHTING MEASURES
  Extinguishing media
  Suitable extinguishing media
    Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
  Special hazards arising from the substance or mixture
    Carbon oxides, Selenium/selenium oxides
  Advice for firefighters
    Wear self contained breathing apparatus for fire fighting if necessary.
  Further information
    no data available

---

Section 6. ACCIDENTAL RELEASE MEASURES
  Personal precautions, protective equipment and emergency procedures
    Wear respiratory protection. Avoid dust formation. Avoid breathing vapors, mist or gas. Ensure adequate
    ventilation. Evacuate personnel to safe areas. Avoid breathing dust.
  Environmental precautions
    Prevent further leakage or spillage if safe to do so. Do not let product enter drains.
  Methods and materials for containment and cleaning up
    Pick up and arrange disposal without creating dust. Sweep up and shovel. Keep in suitable, closed
    containers for disposal.
  Reference to other sections
    For disposal see section 13.

---

Section 7. HANDLING AND STORAGE
  Precautions for safe handling
    Avoid contact with skin and eyes. Avoid formation of dust and aerosols.
    Provide appropriate exhaust ventilation at places where dust is formed.
  Conditions for safe storage, including any incompatibilities
    Store in cool place. Keep container tightly closed in a dry and well-ventilated place.
    Store under inert gas.
  Specific end uses
    no data available

---

Section 8. EXPOSURE CONTROLS/PERSONAL PROTECTION
  Control parameters
  Components with workplace control parameters
  Exposure controls
  Appropriate engineering controls
    Avoid contact with skin, eyes and clothing. Wash hands before breaks and immediately after handling
    the product.
  Personal protective equipment
  Eye/face protection
    Face shield and safety glasses Use equipment for eye protection tested and approved under
    appropriate government standards such as NIOSH (US) or EN 166(EU).
  Skin protection
    Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique
    (without touching glove's outer surface) to avoid skin contact with this product. Dispose of
    contaminated gloves after use in accordance with applicable laws and good laboratory practices.
    Wash and dry hands.
    The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and
    the standard EN 374 derived from it.
  Body Protection
    Complete suit protecting against chemicals, The type of protective equipment must be selected
    according to the concentration and amount of the dangerous substance at the specific workplace.
  Respiratory protection
    Where risk assessment shows air-purifying respirators are appropriate use a full-face particle
    respirator type N99 (US) or type P2 (EN 143) respirator cartridges as a backup to engineering
    controls. If the respirator is the sole means of protection, use a full-face supplied air respirator. Use
    respirators and components tested and approved under appropriate government standards such
    as NIOSH (US) or CEN (EU).

---

Section 9. PHYSICAL AND CHEMICAL PROPERTIES
  Information on basic physical and chemical properties
    a) Appearance        Form: solid    
    b) Odour        no data available    
    c) Odour Threshold        no data available    
    d) pH        no data available    
    e) Melting point/freezing        Melting point/range: 38 - 42 °C    
    point
    f) Initial boiling point and no data available
    boiling range
    g) Flash point        > 110 °C    
    h) Evaporation rate        no data available    
    i) Flammability (solid, gas) no data available
    j) Upper/lower        no data available    
    flammability or
    explosive limits
    k) Vapour pressure        no data available    
    l) Vapour density        no data available    
    m) Relative density        no data available    
    n) Water solubility        no data available    
    o) Partition coefficient: n- no data available
    octanol/water
    p) Autoignition        no data available    
    temperature
    q) Decomposition        no data available    
    temperature
    r) Viscosity        no data available    
    s) Explosive properties        no data available    
    t) Oxidizing properties        no data available    
  Other safety information
    no data available

---

Section 10. STABILITY AND REACTIVITY
  Reactivity
    no data available
  Chemical stability
    no data available
  Possibility of hazardous reactions
    no data available
  Conditions to avoid
    no data available
  Incompatible materials
    Strong oxidizing agents
  Hazardous decomposition products
    Other decomposition products - no data available

---

Section 11. TOXICOLOGICAL INFORMATION
  Information on toxicological effects
  Acute toxicity
    no data available
    Inhalation: no data available
    Dermal: no data available
  Skin corrosion/irritation
    no data available
  Serious eye damage/eye irritation
    no data available
  Respiratory or skin sensitization
    no data available
  Germ cell mutagenicity
    no data available
  Carcinogenicity
    IARC:        No component of this product present at levels greater than or equal to 0.1% is identified as    
    probable, possible or confirmed human carcinogen by IARC.
  Reproductive toxicity
    no data available
  Specific target organ toxicity - single exposure
    no data available
  Specific target organ toxicity - repeated exposure
    no data available
  Aspiration hazard
    no data available
  Potential health effects
  Inhalation        Toxic if inhaled. May cause respiratory tract irritation.    
  Ingestion        Toxic if swallowed.    
  Skin        Toxic if absorbed through skin. May cause skin irritation.    
  Eyes        May cause eye irritation.    
  Signs and Symptoms of Exposure
    To the best of our knowledge, the chemical, physical, and toxicological properties have not been
    thoroughly investigated.
  Additional Information
    RTECS: Not available

---

Section 12. ECOLOGICAL INFORMATION
  Toxicity
    no data available
  Persistence and degradability
    no data available
  Bioaccumulative potential
    no data available
  Mobility in soil
    no data available
  Results of PBT and vPvB assessment
    no data available
  Other adverse effects
    no data available

---

Section 13. DISPOSAL CONSIDERATIONS
  Waste treatment methods
  Product
    Offer surplus and non-recyclable solutions to a licensed disposal company. Dissolve or mix the material
    with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber.
  Contaminated packaging
    Dispose of as unused product.

---

Section 14. TRANSPORT INFORMATION
  UN number
    ADR/RID: 3283        IMDG: 3283        IATA: 3283    
  UN proper shipping name
    ADR/RID: SELENIUM COMPOUND, SOLID, N.O.S. (1,3-Bis[(phenylseleno)methyl]benzene)
    IMDG: SELENIUM COMPOUND, SOLID, N.O.S. (1,3-Bis[(phenylseleno)methyl]benzene)
    IATA:        Selenium compound, solid, n.o.s. (1,3-Bis[(phenylseleno)methyl]benzene)    
  Transport hazard class(es)
    ADR/RID: 6.1        IMDG: 6.1        IATA: 6.1    
  Packaging group
    ADR/RID: III        IMDG: III        IATA: III    
  Environmental hazards
    ADR/RID: no        IMDG Marine pollutant: no        IATA: no    
  Special precautions for user
    no data available

---

---

SECTION 15 - REGULATORY INFORMATION
N/A

---

SECTION 16 - ADDITIONAL INFORMATION
N/A