2-Mercaptopropionic acid

Fisher Scientific UK

Revision date : 2026-07-07

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GHS06 GHS05
Health risk rating 4
Safety risk rating 5
Environmental risk rating 1

General Information

Version

8

Revision date

2026-07-07

Product name

2-Mercaptopropionic acid

Product Synonyms

Thiolactic acid

CAS No.

79-42-5

supplier name

Fisher Scientific UK

Emergency telephone

001-800-227-6701, +32 14 57 52 11, 001-201-796-7100, +32 14 57 52 99, 001-800-424-9300, 001-703-527-3887

Icons in SDS

GHS05 GHS06 M004 M009 M010 M011 M013 M017

Company Information

company name

Fisher Scientific UK

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)

H227, H290, H301+H331, H314, H317

Hazard statements

Code

Statements

H227

Combustible liquid

Section 2

SECTION 2: Hazards identification

Physical State

Appearance/Odor

Liquid Clear Stench Emergency Overview Toxic if swallowed. Toxic if inhaled. Causes severe skin burns and eye damage. Combustible liquid. May be corrosive to metals. May cause an allergic skin reaction. Stench. Lachrymator (substance which increases the flow of tears). Classification of the substance or mixture Flammable liquids Category 4 Substances/mixtures corrosive to metal Category 1 Acute Oral Toxicity Category 3 Acute Inhalation Toxicity - Vapors Category 3 Skin Corrosion/Irritation Category 1 A Serious Eye Damage/Eye Irritation Category 1 Skin Sensitization Category 1 Label Elements

Signal word

Danger Hazard Statements H227 - Combustible liquid H290 - May be corrosive to metals H314 - Causes severe skin burns and eye damage H317 - May cause an allergic skin reaction 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 P234 - Keep only in original packaging 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 P331 - Do NOT induce vomiting P370 + P378 - In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish P390 - Absorb spillage to prevent material damage P362 + P364 - Take off contaminated clothing and wash it before reuse

Storage

P402 - Store in a dry place P403 + P233 - Store in a well-ventilated place. Keep container tightly closed P406 - Store in corrosion resistant polypropylene container with a resistant inliner P405 - Store locked up

Disposal

P501 - Dispose of contents/ container to an approved waste disposal plant

Other physicochemical hazards

Combustible material. May be corrosive to metals.

Health hazards

Toxic if swallowed. Toxic if inhaled. Harmful if inhaled. Corrosive. Causes skin and eye burns. Causes serious eye damage. May cause an allergic skin reaction. Lachrymator (substance which increases the flow of tears).

Environmental hazards

Contains no substances known to be hazardous to the environment or not degradable in waste water treatment plants. Will likely be mobile in the environment due to its water solubility. The product is water soluble, and may spread in water systems.

2.3 Other hazards

Lachrymator (substance which increases the flow of tears) 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 4 Substances/mixtures corrosive to metal Category 1 Acute Oral Toxicity Category 3 Acute Inhalation Toxicity - Vapors Category 3 Skin Corrosion/Irritation Category 1 A Serious Eye Damage/Eye Irritation Category 1 Skin Sensitization

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