General Information
Version
ALFAA22585
Revision date
2026-07-24
Product name
Ethanethiol
Product Synonyms
Ethyl mercaptan
CAS No.
75-08-1
supplier name
Avocado Research Chemicals Ltd
Emergency telephone
001-201-796-7100, +32 14 57 52 99, 001-800-424-9300, 001-703-527-3887
Icons in SDS
Company Information
company name
Avocado Research Chemicals Ltd
e-mail address of the competent person responsible for the Safety Data Sheet
begel.sdsdesk@thermofisher.com
GHS Information
Signal word
Danger
Hazard Codes
Hazard statements (CLP)
H224, H302, H317, H318, H331, H410
Hazard statements
Code
Statements
H224
Extremely flammable liquid and vapour
Section 2
SECTION 2: Hazards identification
Physical State
Appearance/Odor
Liquid Colorless Stench Emergency Overview Harmful to aquatic life. Very toxic to aquatic life with long lasting effects. Extremely flammable liquid and vapor. Harmful if swallowed. May cause an allergic skin reaction. Causes serious eye damage. Toxic if inhaled. Stench. Classification of the substance or mixture Flammable liquids Category 1 Acute Oral Toxicity Category 4 Acute Inhalation Toxicity - Vapors Category 3 Serious Eye Damage/Eye Irritation Category 1 Skin Sensitization Category 1 Acute aquatic toxicity Category 1 Chronic aquatic toxicity Category 1
Signal word
Danger
Hazard statements
H224 - Extremely flammable liquid and vapor H410 - Very toxic to aquatic life with long lasting effects H302 - Harmful if swallowed H317 - May cause an allergic skin reaction H318 - Causes serious eye damage H331 - Toxic if inhaled
Prevention
P210 - Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking P240 - Ground and bond container and receiving equipment P241 - Use explosion-proof electrical/ ventilating/ lighting equipment P242 - Use non-sparking tools P243 - Take action to prevent static discharges P261 - Avoid breathing dust/fume/gas/mist/vapors/spray P264 - Wash face, hands and any exposed skin thoroughly after handling P270 - Do not eat, drink or smoke when using this product P271 - Use only outdoors or in a well-ventilated area P272 - Contaminated work clothing should not be allowed out of the workplace P280 - Wear protective gloves/protective clothing/eye protection/face protection
Response
P303 + P361 + P353 - IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower P304 + P340 - IF INHALED: Remove person to fresh air and keep comfortable for breathing P305 + P351 + P338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing P310 - Immediately call a POISON CENTER or doctor P330 - Rinse mouth P363 - Wash contaminated clothing before reuse P370 + P378 - In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish
Storage
P403 + P233 - Store in a well-ventilated place. Keep container tightly closed P405 - Store locked up
Disposal
P501 - Dispose of contents/ container to an approved waste disposal plant
Other physicochemical hazards
Vapors may cause flash fire or explosion. Extremely flammable.
Health hazards
Harmful if swallowed. May cause an allergic skin reaction. Toxic if inhaled.
Environmental hazards
Harmful to aquatic life. Very toxic to aquatic life with long lasting effects. Will likely be mobile in the environment due to its volatility. The product contains volatile organic compounds (VOC) which will evaporate easily from all surfaces.
2.3 Other hazards
Stench. Toxic to terrestrial vertebrates. This product does not contain any known or suspected endocrine disruptors.
2.1 Classification of the substance or mixture
Flammable liquids. Category 1 Acute Oral Toxicity Category 4 Acute Inhalation Toxicity - Vapors Category 3 Serious Eye Damage/Eye Irritation Category 1 Skin Sensitization Category 1 Acute aquatic toxicity Category 1 Chronic aquatic toxicity