General Information
Version
1.1
Revision date
2026-04-30
Product name
5,6-Dihydrodicyclopentadiene
CAS No.
4488-57-7
1.2.1 Relevant identified uses
For laboratory research purposes
Emergency telephone
+81-3-5640-8878, +81-3-5640-8902
Icons in SDS
Company Information
company name
TOKYO CHEMICAL INDUSTRY CO., LTD
e-mail address of the competent person responsible for the Safety Data Sheet
globalbusiness@tcichemicals.com
GHS Information
Signal word
Danger
Hazard Codes
Hazard statements (CLP)
H228, H302, H315, H331, H335, H361, H411
Hazard statements
Code
Statements
H228
Flammable solid
H302
Harmful if swallowed
H315
Causes skin irritation
H331
Toxic if inhaled
H335
May cause respiratory irritation
H361
Suspected of damaging fertility or the unborn child
H411
Toxic to aquatic life with long lasting effects
Section 2
SECTION 2: Hazards identification
GHS classification of chemical product Flammable solids Category 1 Acute toxicity (Oral) Category 4 Acute toxicity (Inhalation) Category 3 Skin corrosion/irritation Category 2 Serious eye damage/eye irritation Category 2B Reproductive toxicity Category 2 Specific target organ toxicity - Category 3 (respiratory tract irritation) single exposure Short-term (acute) aquatic hazard Category 2 Long-term (chronic) aquatic haz- ard Category 2
Signal word
Danger
Hazard statements
Flammable solid. Harmful if swallowed. Causes skin and eye irritation. Toxic if inhaled. May cause respiratory irritation. Suspected of damaging fertility or the unborn child. Toxic to aquatic life with long lasting effects.
Prevention
Obtain special instructions before use. Do not handle until all safety precautions have been read and under- stood. Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. Ground and bond container and receiving equipment. Use explosion-proof electrical/ ventilating/ lighting/ equipment. Avoid breathing dust. Wash skin thoroughly after handling. Do not eat, drink or smoke when using this product. Use only outdoors or in a well-ventilated area. Avoid release to the environment. Wear protective gloves/ protective clothing/ eye protection/ face pro- tection.
Response
IF SWALLOWED: Call a POISON CENTER/ doctor if you feel unwell. Rinse mouth. IF ON SKIN: Wash with plenty of water. IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call a POISON CENTER/ doctor. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF exposed or concerned: Get medical advice/ attention. If skin irritation occurs: Get medical advice/ attention. If eye irritation persists: Get medical advice/ attention. Take off contaminated clothing and wash it before reuse. In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish. Collect spillage.
Storage
Store in a well-ventilated place. Keep container tightly closed. Store locked up.
Disposal
Dispose of contents/ container to an approved waste disposal plant.
Other hazards which do not result in classification
None known.
2.1 Classification of the substance or mixture
Flammable solids : Category 1 Acute toxicity (Oral) : Category 4 Acute toxicity (Inhalation) : Category 3 Skin corrosion/irritation : Category 2 Serious eye damage/eye irritation : Category 2B Reproductive toxicity : Category 2 Specific target organ toxicity - : Category 3 (respiratory tract irritation) single exposure Short-term (acute) aquatic hazard : Category 2 Long-term (chronic) aquatic haz- : Category 2 ard