Note: Ingredients listed on restricted chemical lists
EC/CAS
3811-73-2
Name of the chemical
Pyridine-2-thiol 1-oxide, sodium salt
Concentration
<=100
General Information
Version
6
Revision date
2026-07-31
Product name
2-Mercaptopyridine N-oxide sodium salt, anhydrous
CAS No.
3811-73-2
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)
H302, H311+H331, H315, H317, H319, H372, H400, H411
Hazard statements
Code
Statements
H302
Harmful if swallowed
Section 2
SECTION 2: Hazards identification
Physical State
Appearance/Odor
Solid No information available Emergency Overview Harmful if swallowed. Toxic in contact with skin. Causes skin irritation. May cause an allergic skin reaction. Causes serious eye irritation. Toxic if inhaled. Causes damage to organs through prolonged or repeated exposure. Very toxic to aquatic life. Toxic to aquatic life with long lasting effects. Hygroscopic. Classification of the substance or mixture Acute Oral Toxicity Category 4 Acute Dermal Toxicity Category 3 Acute Inhalation Toxicity - Dusts and Mists Category 3 Skin Corrosion/Irritation Category 2 Serious Eye Damage/Eye Irritation Category 2 Skin Sensitization Category 1 Specific target organ toxicity - (repeated exposure) Category 1 Acute aquatic toxicity Category 1 Chronic aquatic toxicity Category 2 Label Elements
Signal word
Danger Hazard Statements H302 - Harmful if swallowed H315 - Causes skin irritation H317 - May cause an allergic skin reaction H319 - Causes serious eye irritation H372 - Causes damage to organs through prolonged or repeated exposure H400 - Very toxic to aquatic life H411 - Toxic to aquatic life with long lasting effects H311 + H331 - Toxic in contact with skin or if inhaled
Prevention
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
P302 + P352 - IF ON SKIN: Wash with plenty of soap and water 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 P361 + P364 - Take off immediately all contaminated clothing and wash it before reuse P363 - Wash contaminated clothing 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
Hygroscopic.
Health hazards
Harmful if swallowed. Toxic in contact with skin. Causes skin irritation. May cause an allergic skin reaction. Causes serious eye irritation. Toxic if inhaled. Causes damage to organs through prolonged or repeated exposure.
Environmental hazards
Very toxic to aquatic life. Toxic to aquatic life with long lasting effects. This product does not contain any known or suspected endocrine disruptors. Toxic to terrestrial vertebrates.
2.1 Classification of the substance or mixture
Category 4 Acute Dermal Toxicity Category 3 Acute Inhalation Toxicity - Dusts and Mists Category 3 Skin Corrosion/Irritation Category 2 Serious Eye Damage/Eye Irritation Category 2 Skin Sensitization Category 1 Specific target organ toxicity - (repeated exposure) Category 1 Acute aquatic toxicity Category 1 Chronic aquatic toxicity Category 2