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Section2. HAZARDS IDENTIFICATION
GHS classification
PHYSICAL HAZARDSNot classified
HEALTH HAZARDS
Skin corrosion/irritationCategory 2
Category 2A
Serious eye damage/eye irritation
ENVIRONMENTAL HAZARDSNot classified
GHS label elements, including precautionary statements
Pictograms or hazard symbols
Signal wordWarning
Hazard statementsCauses skin irritation
Causes serious eye irritation
Precautionary statements:
Wash hands thoroughly after handling.
[Prevention]
Wear protective gloves/eye protection/face protection.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses,
[Response]
if present and easy to do. Continue rinsing.
If eye irritation persists: Get medical advice/attention.
IF ON SKIN: Gently wash with plenty of soap and water.
If skin irritation occurs: Get medical advice/attention.
Take off contaminated clothing and wash before reuse.

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Section3. COMPOSITION/INFORMATION ON INGREDIENTS
Substance/mixture:Substance
Components:2,5-Dibromo-3-methylthiophene
Percent:>98.0%(GC)
CAS Number:13191-36-1
Chemical Formula:C5H4Br2S

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Section4. FIRST AID MEASURES
Inhalation:Remove victim to fresh air and keep at rest in a position comfortable for breathing.
Get medical advice/attention if you feel unwell.
2,5-Dibromo-3-methylthiophene

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Section4. FIRST AID MEASURES
Skin contact:Remove/Take off immediately all contaminated clothing. Gently wash with plenty of
soap and water. If skin irritation or rash occurs: Get medical advice/attention.
Eye contact:Rinse cautiously with water for several minutes. Remove contact lenses, if present
and easy to do. Continue rinsing. If eye irritation persists: Get medical
advice/attention.
Ingestion:Get medical advice/attention if you feel unwell. Rinse mouth.
A rescuer should wear personal protective equipment, such as rubber gloves and air-
Protection of first-aiders:
tight goggles.

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Section5. FIRE-FIGHTING MEASURES
Suitable extinguishingDry chemical, foam, water spray, carbon dioxide.
media:
Unsuitable extinguishing Solid streams of water
media:
Specific hazards arising Take care as it may decompose upon combustion or in high temperatures to
from the chemical:generate poisonous fume.
Precautions for firefighters: Fire-extinguishing work is done from the windward and the suitable fire-extinguishing
method according to the surrounding situation is used. Uninvolved persons should
evacuate to a safe place. In case of fire in the surroundings: Remove movable
containers if safe to do so.
Special protectiveWhen extinguishing fire, be sure to wear personal protective equipment.
equipment for firefighters:

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Section6. ACCIDENTAL RELEASE MEASURES
Personal precautions,Use personal protective equipment. Keep people away from and upwind of spill/leak.
protective equipment and Ensure adequate ventilation. Entry to non-involved personnel should be controlled
emergency procedures: around the leakage area by roping off, etc.
Environmental precautions: Prevent product from entering drains.
Methods and materials for Absorb spilled material in a suitable absorbent (e.g. rag, dry sand, earth, saw-dust).
containment and cleaning In case of large amount of spillage, contain a spill by bunding. Adhered or collected
up: material should be promptly disposed of, in accordance with appropriate laws and
regulations.

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Section7. HANDLING AND STORAGE
Precautions for safe handling
Technical measures:Handling is performed in a well ventilated place. Wear suitable protective equipment.
Prevent generation of vapour or mist. Wash hands and face thoroughly after
handling.
Use a ventilation, local exhaust if vapour or aerosol will be generated.
Advice on safe handling: Avoid contact with skin, eyes and clothing.
Conditions for safe storage, including any
incompatibilities
Storage conditions:Keep container tightly closed. Store in a refrigerator.
Store away from incompatible materials such as oxidizing agents.
Heat-sensitive, Light-sensitive
Packaging material:Comply with laws.

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Section8. EXPOSURE CONTROLS / PERSONAL PROTECTION
Engineering controls:Install a closed system or local exhaust as possible so that workers should not be
exposed directly. Also install safety shower and eye bath.
Personal protective equipment
Respiratory protection: Vapor respirator. Follow local and national regulations.
Protective gloves.
Hand protection:
Eye protection:Safety glasses. A face-shield, if the situation requires.
Skin and body protection: Protective clothing. Protective boots, if the situation requires.
2,5-Dibromo-3-methylthiophene

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Section9. PHYSICAL AND CHEMICAL PROPERTIES
Physical state (20°C):Liquid
Form:Clear
Pale yellow - Yellow
Colour:
Odour:No data available
pH: No data available
Melting point/freezing point:No data available
108°C/2.3kPa
Boiling point/range:
Flash point:No data available
Flammability or explosive
limits:
No data available
Lower:
Upper:No data available
1.99
Relative density:
Solubility(ies):
No data available
[Water]
[Other solvents]No data available
4.14
Log Pow:

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Section10. STABILITY AND REACTIVITY
Chemical stability:Stable under proper conditions.
Possibility of hazardous No special reactivity has been reported.
reactions:
Incompatible materials: Oxidizing agents
Hazardous decomposition Carbon monoxide, Carbon dioxide, Sulfur oxides, Hydrogen bromide
products:

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Section11. TOXICOLOGICAL INFORMATION
No data available
Acute Toxicity:
Skin corrosion/irritation: No data available
No data available
Serious eye
damage/irritation:
Germ cell mutagenicity: No data available
Carcinogenicity:
No data available
IARC =
NTP =No data available
No data available
Reproductive toxicity:

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Section12. ECOLOGICAL INFORMATION
Ecotoxicity:
Fish:No data available
Crustacea:No data available
Algae:No data available
Persistence / degradability: No data available
BioaccumulativeNo data available
potential(BCF):
Mobility in soil
Log Pow:4.14
Soil adsorption (Koc):No data available
Henry's LawNo data available
constant(PaM3/mol):

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Section13. DISPOSAL CONSIDERATIONS
Recycle to process, if possible. Consult your local regional authorities. You may be able to burn in a chemical
incinerator equipped with an afterburner and scrubber system. Observe all federal, state and local regulations when
disposing of the substance.
2,5-Dibromo-3-methylthiophene

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Section14. TRANSPORT INFORMATION
Hazards Class:Does not correspond to the classification standard of the United Nations
UN-No:Not listed

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Section15. REGULATORY INFORMATION
Safe management ordinance of dangerous chemical product (State Council announces on January 26, 2002
and revised on February 16,2011): Safe use and production, the storage of a dangerous chemical, transport,
loading and unloading were prescribed.

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SECTION 16 - ADDITIONAL INFORMATION
N/A