Note: Ingredients listed on restricted chemical lists
EC/CAS
109-99-9
Name of the chemical
Tetrahydrofuran (618/2012)
Concentration
<=100%
General Information
Revision date
2026-06-25
Product name
Tetrahydrofuran
Product Synonyms
THF; Diethylene oxide; Furanidine
CAS No.
109-99-9
Emergency telephone
1-800-535-5053, 1-352-323-3500
Icons in SDS
Company Information
company name
Lab Alley, LLC
GHS Information
Signal word
Danger
Hazard Codes
Hazard statements (CLP)
H225, H302, H319, H335, H336, H351
Hazard statements
Code
Statements
H225
Highly Flammable liquid and vapour
Section 2
SECTION 2: Hazards identification
Classification of the substance or mixture
Signal word
Danger
Hazard statements
Highly flammable liquid and vapor. Harmful if swallowed. Causes serious eye irritation. May cause respiratory irritation. May cause drowsiness or dizziness. Suspected of causing cancer.
Prevention
Obtain special instructions before use. Do not handle until all safety precautions have been read and understood. Use personal protective equipment as required. Wash face, hands, and any exposed skin thoroughly after handling. Do not eat, drink, or smoke when using this product. Wear eye/face protection. Do not breathe dust/fume/gas/mist/vapors/spray. Use only outdoors or in a well-ventilated area. Keep away from heat/sparks/open flames/hot surfaces. No smoking. Keep container tightly closed. Ground/bond container and receiving equipment. Use explosion-proof electrical/ventilating/lighting equipment. Use only non-sparking tools. Take precautionary measures against static discharge. Keep cool.
Response
IF exposed or concerned, get medical attention/advice IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: 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. IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell. Rinse mouth. Fire: In case of fire, use CO2, dry chemical, or foam for extinction.
Storage
Store locked up. Store in a well-ventilated place. Keep container tightly closed.
Disposal
Dispose of contents/container to an approved waste disposal plant
2.3 Other hazards
May form explosive peroxides. WARNING: Cancer.
2.1 Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS) Flammable Liquids (Category 2) Acute Oral Toxicity (Category 4) Serious Eye Damage/Eye Irritation (Category 2) Carcinogenicity (Category 2) Specific Target Organ Toxicity (single exposure) (Category 3) Target Organ(s) - Respiratory system, Central nervous system (CNS)