Section I.Chemical Product and Company Identification
Chemical Name 2-Chloro-5-methylthiophene
Portland OR
Synonym Thiophene, 2-chloro-5-methyl- (CA INDEX NAME)
Chemical Formula C5H5ClS
CAS Number 17249-82-0
Section II. Composition and Information on Ingredients
Toxicology Data
Chemical Name CAS Number Percent (%) TLV/PEL
2-Chloro-5-methylthiophene 17249-82-0 Min. 96.0 (GC) Not available. Not available.
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.
Irritating to eyes and skin on contact. Inhalation causes irritation of the lungs and respiratory system. Inflammation of the
eye is characterized by redness, watering, and itching. Skin inflammation is characterized by itching, scaling, reddening, or,
occasionally, blistering.
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: Not available.
Repeated or prolonged exposure to this compound is not known to aggravate existing medical conditions.
Section IV. First Aid Measures
Eye Contact Check for and remove any contact lenses. In case of contact, immediately flush eyes with plenty of water for at least 15
minutes. Get medical attention.
Skin Contact In case of contact, immediately flush skin with plenty of water. Remove contaminated clothing and shoes. Wash clothing
before reuse. Thoroughly clean shoes before reuse. Get medical attention.
If the victim is not breathing, perform mouth-to-mouth resuscitation. Loosen tight clothing such as a collar, tie, belt or
Inhalation
waistband. If breathing is difficult, oxygen can be administered. Seek medical attention if respiration problems do not
improve.
INDUCE VOMITING by sticking finger in throat. Lower the head so that the vomit will not reenter the mouth and throat.
Ingestion
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.
Section V. Fire and Explosion Data
Not available.
Combustible. Auto-Ignition
Flammability
Flash Points Flammable Limits Not available.
47°C (116.6°F).
These products are toxic carbon oxides (CO, CO2), halogenated compounds, sulfur oxides (SOx).
Combustion Products
WARNING: Highly toxic HCl gas is produced during combustion.
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
Flammable liquid.
SMALL FIRE: Use DRY chemical powder.
and Instructions
LARGE FIRE: Use alcohol foam, water spray or fog. Cool containing vessels with water jet in order to prevent pressure
build-up, autoignition or explosion. Consult with local fire authorities before attempting large scale fire-fighting operations.
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2-Chloro-5-methylthiophene
Section VI. Accidental Release Measures
Spill Cleanup Combustible material. Harmful material. Irritating material.
Keep away from heat. Mechanical exhaust required. Stop leak if without risk. Absorb with DRY earth, sand or other
Instructions
non-combustible material. DO NOT touch spilled material. Prevent entry into sewers, basements or confined areas; dike if
needed. Consult federal, state, and/or local authorities for assistance on disposal.
Section VII. Handling and Storage
COMBUSTIBLE. HARMFUL. IRRITANT. Keep away from heat. Mechanical exhaust required. Avoid excessive heat and
Handling and Storage
light. Do not breathe gas/fumes/ vapor/spray.
Information
Always store away from incompatible compounds such as oxidizing agents.
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.
Section IX. Physical and Chemical Properties
Liquid. (Clear, light yellow.) Solubility
Physical state @ 20°C Immiscible with water.
1.21 (water=1)
Specific Gravity
Molecular Weight 132.61 Partition Coefficient
Not available.
Boiling Point 155°C (311°F) Vapor Pressure Not available.
Not available. Not available.
Melting Point Vapor Density
Refractive Index 1.54 Volatility Not available.
Not available. Not available.
Critical Temperature Odor
Viscosity Not available. Taste Not available.
Section X. Stability and Reactivity Data
This material is stable if stored under proper conditions. (See Section VII for instructions)
Stability
Conditions of Instability Avoid excessive heat and light.
Incompatibilities
Reactive with oxidizing agents.
Section XI. Toxicological Information
Not available.
RTECS Number
Eye Contact. Ingestion. Inhalation.
Routes of Exposure
Not available.
Toxicity Data
Chronic Toxic Effects CARCINOGENIC EFFECTS : Not available.
MUTAGENIC EFFECTS : Not available.
TERATOGENIC EFFECTS : Not available.
DEVELOPMENTAL TOXICITY: Not available.
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
Irritating to eyes and skin on contact. Inhalation causes irritation of the lungs and respiratory system. Inflammation of the eye
is characterized by redness, watering, and itching. Skin inflammation is characterized by itching, scaling, reddening, or,
occasionally, blistering.
Follow safe industrial hygiene practices and always wear proper protective equipment when handling this compound.
Section XII. Ecological Information
Not available.
Ecotoxicity
Environmental Fate Not available.
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2-Chloro-5-methylthiophene
Section XIII. Disposal Considerations
Waste Disposal Recycle to process, if possible. Consult your local regional authorities. You may be able to dissolve or mix material with 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 the substance.
Section XIV. Transport Information
DOT Classification DOT CLASS 3: Flammable liquid.
PIN Number
Proper Shipping Name Flammable liquid, n.o.s.
Packing Group (PG) III
DOT Pictograms
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 CLASS B-3: Combustible liquid with a flash point between 37.8°C (100°F) and 93.3°C (200°F).
(Canada)
EINECS Number (EEC) Not available.
EEC Risk Statements R10- Flammable.
R18- In use, may form flammable/explosive vapor-air mixture.
R20/21/22- Harmful by inhalation, in contact with skin and if swallowed.
R36/37/38- Irritating to eyes, respiratory system and skin.
SECTION 16 - ADDITIONAL INFORMATION
N/A
