General Information
Version
6.16
Revision date
2026-04-29
Product name
Tetramethylammonium hydroxide
CAS No.
10424-65-4
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)
H300+H310, H314, H370, H372, H411
Hazard statements
Code
Statements
H300+H310
Fatal if swallowed or in contact with skin
Section 2
SECTION 2: Hazards identification
Long term hazards
Category 2 aquatic hazard
Other hazards
None known
Signal word
Danger
Hazard statements
H300 + H310 Fatal if swallowed or in contact with skin. H314 Causes severe skin burns and eye damage. H370 Causes damage to organs (Central nervous system). H372 Causes damage to organs (Liver, thymus) through prolonged or repeated exposure in contact with skin. H411 Toxic to aquatic life with long lasting effects.
Prevention
P260 Do not breathe dust. P262 Do not get in eyes, on skin, or on clothing. P264 Wash skin thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P273 Avoid release to the environment. P280 Wear protective gloves/ protective clothing/ eye protection/ face protection.
Response
P301 + P310 + P330 IF SWALLOWED: Immediately call a POISON CENTER/ doctor. Rinse mouth. P301 + P330 + P331 + P310 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. Immediately call a POISON CENTER/ doctor. 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. P314 Get medical advice/ attention if you feel unwell. P361 + P364 Take off immediately all contaminated clothing and wash it before reuse. P391 Collect spillage.
Storage
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) Hazards for the product as supplied Acute toxicity (Oral) : Category 2 Acute toxicity (Dermal) : Category 1 Skin corrosion : Sub-category 1B Serious eye damage : Category 1 Specific target organ : Category 1 (Central nervous system) toxicity - single exposure Specific target organ : Category 1 (Liver, thymus) toxicity - repeated exposure (Dermal) Short-term (acute) : Category 2 aquatic hazard Long-term (chronic) : Category 2 aquatic hazard Other hazards
