Note: Ingredients listed on restricted chemical lists
EC/CAS
2682-20-4
Name of the chemical
2-Methyl-2H-isothiazol-3-one
Concentration
N/A
General Information
Version
6.13
Revision date
2025-06-27
Product name
2-Methyl-4-isothiazolin-3-one
CAS No.
2682-20-4
1.2.1 Relevant identified uses
Laboratory chemicals, Synthesis of substances
1.2.2. Uses advised against
The product is being supplied under the TSCA R&D Exemption
Emergency telephone
800-424-9300, +1-703- 527-3887
Icons in SDS
Company Information
company name
Sigma-Aldrich Inc
GHS Information
Signal word
Danger
Hazard Codes
Hazard statements (CLP)
H301+H311, H314, H317, H330, H410
Hazard statements
Code
Statements
H301+H311
Toxic if swallowed or in contact with skin
Section 2
SECTION 2: Hazards identification
Long term hazards
Category 1 aquatic hazard
Other hazards
Corrosive to the respiratory tract
Signal word
Danger
Hazard statements
H301 + H311 Toxic if swallowed or in contact with skin. H314 Causes severe skin burns and eye damage. H317 May cause an allergic skin reaction. H330 Fatal if inhaled. H410 Very toxic to aquatic life with long lasting effects.
Prevention
P260 Do not breathe dust. P264 Wash 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 must not be allowed out of the workplace. P273 Avoid release to the environment. P280 Wear protective gloves, protective clothing, eye protection and face protection. P284 Wear respiratory protection.
Response
P301 + P310 + P330 IF SWALLOWED: Immediately call a POISON CENTER/ doctor. Rinse mouth. P301 + P330 + P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P303 + P361 + P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/ shower. P304 + P340 + P310 IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/ doctor. P305 + P351 + P338 + P310 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER/ doctor. P333 + P313 If skin irritation or rash occurs: Get medical advice/ attention. P361 + P364 Take off immediately all contaminated clothing and wash it before reuse. P391 Collect spillage.
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.
2.1 Classification of the substance or mixture
(29 CFR 1910.1200) Acute toxicity (Oral) : Category 3 Acute toxicity : Category 2 (Inhalation) Acute toxicity (Dermal) : Category 3 Skin corrosion : Sub-category 1B Serious eye damage : Category 1 Skin sensitisation : Sub-category 1A Short-term (acute) : Category 1 aquatic hazard Long-term (chronic) : Category 1 aquatic hazard Other hazards Corrosive to the respiratory tract.
