Educational content for trained professionals. Not a Safety Data Sheet, not medical advice. In an emergency, call your local poison control or emergency services immediately. Terms of use.
Thioglycolic Acid
Also known as: mercaptoacetic acid · thioglycolic acid · 68-11-1 · 2-Mercaptoacetic acid
- CAS No.
- 68-11-1
- Formula
- C2H4O2S
- Molar mass
- 92.12 g/mol
- PubChem CID
- 1133
Corrosive
Toxic
Harmful / Irritant
Health hazard
Summary
Thioglycolic Acid (C2H4O2S), CAS 68-11-1. Common in labs and industry. Read on for hazards, storage, PPE and mixing rules.
Background
Loading background from Wikipedia…
Hazards
Attacks skin, eyes and materials.
May be fatal even in small doses.
May cause skin, eye or respiratory irritation.
Serious long-term health effects (CMR, respiratory sensitizer).
Hazard statements
- H301: Toxic if swallowed [Danger Acute toxicity, oral]
- H311: Toxic in contact with skin [Danger Acute toxicity, dermal]
- H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
- H331: Toxic if inhaled [Danger Acute toxicity, inhalation]
- H317: May cause an allergic skin reaction [Warning Sensitization, Skin]
- H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]
- H330: Fatal if inhaled [Danger Acute toxicity, inhalation]
- H332: Harmful if inhaled [Warning Acute toxicity, inhalation]
- H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure]
- H373: May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]
- H402: Harmful to aquatic life [Hazardous to the aquatic environment, acute hazard]
- H312: Harmful in contact with skin [Warning Acute toxicity, dermal]
- H412: Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]
Storage
Keep at room temperature, below 30 °C, out of direct heat.
Store somewhere well-ventilated and away from any ignition source.
Metal drums or tinted glass, tightly sealed.
Strong acids, strong bases and powerful oxidizers.
Personal protective equipment
Nitrile or butyl, at least 0.4 mm thick.
Safety goggles with side shields.
A2 organic-vapor cartridge if the room isn't well ventilated.
Occupational exposure limits (HSE)
Loading NIOSH / OSHA exposure limits…
EU harmonised classification (ECHA C&L)
Loading ECHA C&L (CLP Annex VI)…
Transport
Loading transport data from PubChem…
FDA recalls & enforcement
Searching OpenFDA enforcement reports…
Compatibilities
Try the compatibility checker in Free tools.
Compare
Put this chemical against another one.
Open comparator with Thioglycolic AcidPractical safety notes
- Corrosive. Wear chemical goggles, faceshield and chemical-resistant gloves. Have an eyewash within reach.
- Acute toxicity. Work under a fume hood, restrict access, keep a specific antidote plan available.
- Irritant / harmful. Ventilate the workspace and avoid skin contact.
- Serious health hazard (carcinogen, mutagen, reprotoxic, respiratory sensitizer). Substitute if possible; otherwise closed systems and medical surveillance.
Derived from the GHS classification shown above. These notes are generic guidance and do not replace the manufacturer's SDS or your local risk assessment.
FAQ
Is Thioglycolic Acid flammable?+
Thioglycolic Acid (CAS 68-11-1) does not carry the GHS02 flame pictogram in our records. Always confirm with the manufacturer's SDS section 9 (flash point) before assuming a product is non-flammable.
What PPE should I wear when handling Thioglycolic Acid?+
Chemical-splash goggles and a faceshield, chemical-resistant gloves (nitrile or butyl) and an apron are the minimum. Work inside a fume hood or use a suitable respirator. Check SDS section 8 for material-specific breakthrough times.
How should Thioglycolic Acid be stored?+
Store Thioglycolic Acid (CAS 68-11-1) in tightly closed original containers, in a cool, dry, well-ventilated area away from incompatible materials. Segregate acids from bases and keep away from metals that can be attacked.
Is Thioglycolic Acid dangerous for the environment?+
No specific environmental pictogram (GHS09) is listed in our records for Thioglycolic Acid, but any chemical waste should be handled through your site's hazardous-waste procedure, not poured down the drain.
Where can I find the official Safety Data Sheet for Thioglycolic Acid?+
Official, up-to-date SDS documents are published by each manufacturer (Sigma-Aldrich, Merck, Thermo Fisher, VWR, Carl Roth, etc.) and by regulators such as ECHA and NIOSH. This page is an educational summary and does not replace the manufacturer's SDS.
Ask about this product
AI-generated content may be inaccurate or outdated. Do not rely on it for emergency response, medical treatment, or regulatory compliance decisions. Terms of use.
Try one of these, or ask anything about this compound.
AI answers can be wrong. Always check the official SDS for definitive safety information.
Reference information only. Not a Safety Data Sheet. Always consult the manufacturer's official SDS and your local regulations before handling, storing or transporting any chemical. Terms of use.