General Information
Version
5
Revision date
2026-07-25
Product name
Methyl thiocyanate
Product Synonyms
Methane, Thiocyanato-; Methyl Sulfocyanate.; Methylrhodanid
CAS No.
556-64-9
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)
H226, H301+H331
Hazard statements
Code
Statements
H226
Flammable liquid and vapour
Section 2
SECTION 2: Hazards identification
Physical State
Appearance/Odor
Liquid Light yellow pungent Emergency Overview Flammable liquid and vapor. Toxic if swallowed. Toxic if inhaled. Classification of the substance or mixture Flammable liquids Category 3 Acute Oral Toxicity Category 3 Acute Inhalation Toxicity - Vapors Category 3 Label Elements
Signal word
Danger Hazard Statements H226 - Flammable liquid and vapor H301 + H331 - Toxic if swallowed or 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 P242 - Use non-sparking tools P261 - Avoid breathing dust/fume/gas/mist/vapors/spray P264 - Wash face, hands and any exposed skin thoroughly after handling P241 - Use explosion-proof electrical/ ventilating/ lighting equipment P243 - Take action to prevent static discharges P270 - Do not eat, drink or smoke when using this product P271 - Use only outdoors or in a well-ventilated area 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 P301 + P310 - IF SWALLOWED: Immediately call a POISON CENTER or doctor 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 P311 - Call a POISON CENTER or doctor P330 - Rinse mouth P370 + P378 - In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish P362 + P364 - Take off contaminated clothing and wash it before reuse
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. Flammable liquid.
Health hazards
Toxic if swallowed. Toxic if inhaled.
Environmental hazards
Contains no substances known to be hazardous to the environment or not degradable in waste water treatment plants. 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 3 Acute Oral Toxicity Category 3 Acute Inhalation Toxicity - Vapors