1,7-dimethylxanthine

---

Section 1. IDENTIFICATION OF THE SUBSTANCE/MIXTURE
  Product identifiers
    Product name        : Paraxanthine    
  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]
    Flammable liquids (Category 2)
    Acute toxicity, Oral (Category 3)
    Acute toxicity, Inhalation (Category 3)
    Acute toxicity, Dermal (Category 3)
    Specific target organ toxicity - single exposure (Category 1)
  Classification according to EU Directives 67/548/EEC or 1999/45/EC
    Highly flammable. Toxic by inhalation, in contact with skin and if swallowed. Toxic: danger of very serious
    irreversible effects through 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)
    H225        Highly flammable liquid and vapour.    
    H301 + H311 + H331        Toxic if swallowed, in contact with skin or if inhaled    
    H370        Causes damage to organs.    
    Precautionary statement(s)
    P210        Keep away from heat/sparks/open flames/hot surfaces. - No smoking.    
    P260        Do not breathe dust/ fume/ gas/ mist/ vapours/ spray.    
    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)
    R11        Highly flammable.    
    R23/24/25        Toxic by inhalation, in contact with skin and if swallowed.    
    R39/23/24/25        Toxic: danger of very serious irreversible effects through inhalation, in    
    contact with skin and if swallowed.
    S-phrase(s)
    S7        Keep container tightly closed.    
    S16        Keep away from sources of ignition - No smoking.    
    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
  Mixtures
    Component        Classification        Concentration    
  Methanol
    CAS-No.        67-56-1        Flam. Liq. 2; Acute Tox. 3;        50 - 100 %    
    EC-No.        200-659-6        STOT SE 1; H225, H301 +    
    Index-No.        603-001-00-X        H311 + H331, H370    
    Registration number        01-2119433307-44-XXXX        F, T, R11 - R23/24/25 -    
    R39/23/24/25
    For the full text of the H-Statements and R-Phrases mentioned in this Section, see Section 16

---

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
    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
    Methyl alcohol may be fatal or cause blindness if swallowed., Cannot be made non-poisonous., Effects due
    to ingestion may include:, Nausea, Headache, Vomiting, Gastrointestinal disturbance, Dizziness,
    Weakness, Confusion.
  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
    no data available
  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.
  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).
  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 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, Flame retardant antistatic protective clothing, 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: liquid    
    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 64 - 65 °C at 1,013 hPa
    boiling range
    g) Flash point        9,7 °C - closed cup    
    h) Evaporation rate        no data available    
    i) Flammability (solid, gas) no data available
    j) Upper/lower        Upper explosion limit: 36 %(V)    
    flammability or        Lower explosion limit: 6 %(V)    
    explosive limits
    k) Vapour pressure        no data available    
    l) Vapour density        no data available    
    m) Relative density        0,791 g/cm3 at 20 °C    
    n) Water solubility        no data available    
    o) Partition coefficient: n- no data available
    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
    Heat, flames and sparks. Extremes of temperature and direct sunlight.
  Incompatible materials
    Acids, Oxidizing agents, Alkali metals, Strong oxidizing agents, Strong acids, Acid chlorides, Acid
    anhydrides, Reducing agents, Strong reducing agents, Phosphorus halides
  Hazardous decomposition products
    Other decomposition products - no data available

---

Section 11. TOXICOLOGICAL INFORMATION
  Information on toxicological effects
  Acute toxicity
    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
    Methyl alcohol may be fatal or cause blindness if swallowed., Cannot be made non-poisonous., Effects due
    to ingestion may include:, Nausea, Headache, Vomiting, Gastrointestinal disturbance, Dizziness,
    Weakness, Confusion.
  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
    Burn in a chemical incinerator equipped with an afterburner and scrubber but exert extra care in igniting
    as this material is highly flammable. Offer surplus and non-recyclable solutions to a licensed disposal
    company.
  Contaminated packaging
    Dispose of as unused product.

---

Section 14. TRANSPORT INFORMATION
  UN number
    ADR/RID: 1230        IMDG: 1230        IATA: 1230    
  UN proper shipping name
    ADR/RID: METHANOL, SOLUTION
    IMDG: METHANOL, SOLUTION
    IATA:        Methanol, SOLUTION    
  Transport hazard class(es)
    ADR/RID: 3 (6.1)        IMDG: 3 (6.1)        IATA: 3 (6.1)    
  Packaging group
    ADR/RID: II        IMDG: II        IATA: II    
  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