General Information
Version
6.2
Revision date
2025-11-07
Product name
5-Methyl-3-hexen-2-one
CAS No.
5166-53-0
1.2.1 Relevant identified uses
For R&D use only. Not for pharmaceutical, household or other uses
Emergency telephone
+61 2 9037 2994
Icons in SDS
Company Information
company name
Merck Life Science Pty Ltd
e-mail address of the competent person responsible for the Safety Data Sheet
customersupport.anz@merckgroup.com
GHS Information
Signal word
Danger
Hazard Codes
Hazard statements (CLP)
H226, H302+H332, H311
Hazard statements
Code
Statements
H226
Flammable liquid and vapour
Section 2
SECTION 2: Hazards identification
GHS Classification Flammable liquids Category 3 Acute toxicity (Oral) Category 4 Acute toxicity (Inhalation) Category 4 Acute toxicity (Dermal) Category 3
Signal word
Danger
Hazard statements
H226 Flammable liquid and vapour. H302 + H332 Harmful if swallowed or if inhaled. H311 Toxic in contact with skin.
Prevention
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P233 Keep container tightly closed. P240 Ground and bond container and receiving equip- ment. P241 Use explosion-proof electrical/ ventilating/ light- ing equipment. P242 Use non-sparking tools. P243 Take action to prevent static discharges. P261 Avoid breathing mist or vapours. P264 Wash skin thoroughly after handling. P270 Do not eat, drink or smoke when using this prod- uct. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/ protective clothing/ eye protection/ face protection.
Response
P301 + P312 + P330 IF SWALLOWED: Call a POISON CENTER/ doctor if you feel unwell. Rinse mouth. P303 + P361 + P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water. P304 + P340 + P312 IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call a POISON CENTER/ doctor if you feel unwell. P361 + P364 Take off immediately all contaminated clothing and wash it before reuse. P370 + P378 In case of fire: Use dry sand, dry chemi- cal or alcohol-resistant foam to extinguish.
Storage
P403 + P235 Store in a well-ventilated place. Keep cool. P405 Store locked up.
Disposal
P501 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 liquids : Category 3 Acute toxicity (Oral) : Category 4 Acute toxicity (Inhalation) : Category 4 Acute toxicity (Dermal) : Category 3
