Note: Ingredients listed on restricted chemical lists
EC/CAS
78-59-1
Name of the chemical
3,5,5-Trimethyl-2-cyclohexen-1-on
Concentration
>95
General Information
Version
5
Revision date
2025-12-22
Product name
Isophorone
Product Synonyms
3,5,5-Trimethyl-2-cyclohexen-1-one
CAS No.
78-59-1
Emergency telephone
001-800-227-6701, +32 14 57 52 11, 001-201-796-7100, +32 14 57 52 99, 001-800-424-9300, 001-703-527-3887
Icons in SDS
Company Information
company name
Thermo Fisher Scientific Chemicals, Inc
GHS Information
Signal word
Warning
Hazard Codes
Hazard statements (CLP)
H227, H319, H335, H351
Hazard statements
Code
Statements
H227
Combustible liquid
Section 2
SECTION 2: Hazards identification
(29 CFR 1910.1200) Classification
Signal word
Warning
Hazard statements
Combustible liquid Causes serious eye irritation May cause respiratory irritation Suspected of causing cancer Harmful if swallowed or in contact with skin
Prevention
Obtain special instructions before use Do not handle until all safety precautions have been read and understood 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, hot surfaces, sparks, open flames and other ignition sources. No smoking Keep cool Wear protective gloves/protective clothing/eye protection/face protection
Response
IF exposed or concerned: Get medical attention/advice Inhalation IF INHALED: Remove person to fresh air and keep comfortable for breathing Skin IF ON SKIN: Wash with plenty of soap and water Call a POISON CENTER or doctor if you feel unwell Take off contaminated clothing and wash before reuse Eyes 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 Ingestion 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 to extinguish
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
None identified
2.1 Classification of the substance or mixture
This chemical is considered hazardous according to [US] OSHA (29 CFR 1910.1200, 2024) Flammable liquids Category 4 Acute oral toxicity Category 4 Acute dermal toxicity Category 4 Serious Eye Damage/Eye Irritation Category 2 Carcinogenicity Category 2 Specific target organ toxicity (single exposure) Category 3 Target Organs - Respiratory system.
