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(S)-styrene oxide
CAS No.: 20780-54-5
Synonyms:
Formula: C8H8O
Exact Mass: 120.05800
Molecular Weight: 120.14900
PSA: 12.53000
LogP: 1.75790
Reference Price: $565/kg Inquiry Now
(S)-styrene oxide 20780-54-5 MSDS

Section 1. IDENTIFICATION OF THE SUBSTANCE/MIXTURE
  Product identifiers
    : (S)-(−)-Styrene oxide
    Product name
    CAS-No.        : 20780-54-5    
  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, Inhalation (Category 3)
    Acute toxicity, Dermal (Category 3)
    Skin irritation (Category 2)
    Eye irritation (Category 2)
    Carcinogenicity (Category 1B)
  Classification according to EU Directives 67/548/EEC or 1999/45/EC
    May cause cancer. Harmful by inhalation and in contact with skin. Irritating to eyes and skin.
  Label elements
  Labelling according Regulation (EC) No 1272/2008 [CLP]
    Pictogram
    Signal word        Danger    
    Hazard statement(s)
    H311        Toxic in contact with skin.    
    H315        Causes skin irritation.    
    H319        Causes serious eye irritation.    
    H331        Toxic if inhaled.    
    H350        May cause cancer.    
    Precautionary statement(s)
    P201        Obtain special instructions before use.    
    P261        Avoid breathing dust/ fume/ gas/ mist/ vapours/ spray.    
    P280        Wear protective gloves/ protective clothing.    
    P305 + P351 + P338        IF IN EYES: Rinse cautiously with water for several minutes. Remove    
    contact lenses, if present and easy to do. Continue rinsing.
    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)
    R45        May cause cancer.    
    R20/21        Also harmful by inhalation and in contact with skin.    
    R36/38        Irritating to eyes and skin.    
    S-phrase(s)
    S53        Avoid exposure - obtain special instructions before use.    
    S26        In case of contact with eyes, rinse immediately with plenty of water and    
    seek medical advice.
    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).
    Restricted to professional users.
  Other hazards - none

Section 3. COMPOSITION/INFORMATION ON INGREDIENTS
  Substances
    : (S)-(−)-Phenyloxirane
    Synonyms
    (S)-Phenylethylene oxide
    Formula        : C8H8O    
    Molecular Weight        : 120,15 g/mol    
    Component        Concentration    
  Oxirane,phenyl-,(S)-
    CAS-No.        20780-54-5        -    

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
    Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.
  If swallowed
    Do NOT induce vomiting. 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
    Nausea, Headache, Vomiting, Central nervous system depression
  Indication of any immediate medical attention and special treatment needed
    no data available

Section 5. FIREFIGHTING MEASURES
  Extinguishing media
  Suitable extinguishing media
    For small (incipient) fires, use media such as "alcohol" foam, dry chemical, or carbon dioxide. For large
    fires, apply water from as far as possible. Use very large quantities (flooding) of water applied as a mist or
    spray; solid streams of water may be ineffective. Cool all affected containers with flooding quantities of
    water.
  Special hazards arising from the substance or mixture
    Carbon oxides
  Advice for firefighters
    Wear self contained breathing apparatus for fire fighting if necessary.
  Further information
    Use water spray to cool unopened containers.

Section 6. ACCIDENTAL RELEASE MEASURES
  Personal precautions, protective equipment and emergency procedures
    Wear respiratory protection. Avoid breathing vapors, mist or gas. Ensure adequate ventilation. Remove
    all sources of ignition. Evacuate personnel to safe areas. Beware of vapours accumulating to form
    explosive concentrations. Vapours can accumulate in low areas.
  Environmental precautions
    Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the
    environment must be avoided.
  Methods and materials for containment and cleaning up
    Contain spillage, and then collect with an electrically protected vacuum cleaner or by wet-brushing and
    place in container for disposal according to local regulations (see section 13). 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 exposure - obtain special instructions before use.Avoid contact with skin and eyes. Avoid inhalation
    of vapour or mist.
    Keep away from sources of ignition - No smoking.Take measures to prevent the build up of electrostatic
    charge.
  Conditions for safe storage, including any incompatibilities
    Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Containers which are
    opened must be carefully resealed and kept upright to prevent leakage.
  Specific end use(s)
    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 respirator
    with multi-purpose combination (US) or type ABEK (EN 14387) 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: clear, liquid    
    Colour: colourless
    b) Odour        no data available    
    c) Odour Threshold        no data available    
    d) pH        no data available    
    e) Melting point/freezing        no data available    
    point
    f) Initial boiling point and 192 - 194 °C - lit.
    boiling range
    g) Flash point        79 °C - closed cup    
    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        1,051 g/cm3 at 25 °C    
    n) Water solubility        no data available    
    o) Partition coefficient: n- log Pow: 1,61
    octanol/water
    p) Auto-ignition        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
    Avoid heating above: 200°C Avoid contact with: metal ions
    Heat, flames and sparks.
  Incompatible materials
    Strong oxidizing agents
  Hazardous decomposition products
    Other decomposition products - no data available

Section 11. TOXICOLOGICAL INFORMATION
  Information on toxicological effects
  Acute toxicity
    LD50 Oral - rat - 2.980 mg/kg
    LC50 Inhalation - rat - 4 h - 4.900 mg/m3
    LD50 Dermal - rabbit - 938 mg/kg
  Skin corrosion/irritation
    no data available
  Serious eye damage/eye irritation
    no data available
  Respiratory or skin sensitization
    no data available
  Germ cell mutagenicity
    Genotoxicity in vitro - Hamster - Lungs
    Sister chromatid exchange
    Genotoxicity in vivo - mouse - Intraperitoneal
    Cytogenetic analysis
    Genotoxicity in vivo - mouse - Intraperitoneal
    Sister chromatid exchange
  Carcinogenicity
    Possible human carcinogen
    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. Causes respiratory tract irritation.    
  Ingestion
    May be harmful if swallowed.
  Skin        Toxic if absorbed through skin. Causes skin irritation.    
  Eyes        Causes serious eye irritation.    
  Signs and Symptoms of Exposure
    Nausea, Headache, Vomiting, Central nervous system depression
  Additional Information
    RTECS: CZ9625030

Section 12. ECOLOGICAL INFORMATION
  Toxicity
    Toxicity to fish        LC50 - Pimephales promelas (fathead minnow) - 4,54 mg/l - 96 h    
  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
    Toxic to aquatic life.

Section 13. DISPOSAL CONSIDERATIONS
  Waste treatment methods
  Product
    This combustible material may be burned in a chemical incinerator equipped with an afterburner and
    scrubber. Offer surplus and non-recyclable solutions to a licensed disposal company. Contact a licensed
    professional waste disposal service to dispose of this material.
  Contaminated packaging
    Dispose of as unused product.

Section 14. TRANSPORT INFORMATION
  UN number
    ADR/RID: 2810        IMDG: 2810        IATA: 2810    
  UN proper shipping name
    ADR/RID: TOXIC LIQUID, ORGANIC, N.O.S. (Oxirane,phenyl-,(S)-)
    IMDG: TOXIC LIQUID, ORGANIC, N.O.S. (Oxirane,phenyl-,(S)-)
    IATA:        Toxic liquid, organic, n.o.s. (Oxirane,phenyl-,(S)-)    
  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

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