CAS 126-97-6PubChem CID 160430
Monoethanolamine thioglycolate
Based on the available data, the CIR Expert Panel concluded that ... Ethanolamine Thioglycolate is safe for use in hair straighteners, permanent waves, tonics, dressings, and so forth, wave sets, other non-coloring hair products, and hair dyes and colors, as described in this safety assessment, at concentrations up to 15.2% (as Thioglycolic Acid). Hairdressers should avoid skin contact and minimize consumer skin exposure. — Cosmetic Ingredient Review (CIR)
- IUPAC name
- 2-aminoethanol;2-sulfanylacetic acid
- Molecular formula
- C4H11NO3S
- Molecular weight
- 153.20 g/mol
- Exact mass
- 153.04596439 Da
- Topological polar surface area
- 84.6 Ų
- Hydrogen-bond donors
- 4
- Hydrogen-bond acceptors
- 5
- Covalent units
- 2
- Defined stereocentres
- 0
Also known as
Ethanolamine thioglycolate(2-Hydroxyethyl)ammonium mercaptoacetateEINECS 204-815-4EC 204-815-4263SH5220TTHIOGLYCOLIC ACID MONOETHANOLAMINE SALTN-(2-HYDROXYETHYL)AMMONIUM THIOGLYCOLATEETHANOL, 2-AMINO-, MERCAPTOACETATE (SALT)
10 more reported names
RefChem:819297ETHANOLAMINE THIOGLYCOLATE [INCI]UNII-263SH5220TEthanolamine thioglycolate (ca. 85% in water)2-aminoethanol,2-sulfanylacetic acidEthanolamine MercaptoacetateXTJCJAPNPGGFED-UHFFFAOYSA-NAS-75819Sulfanylacetic acid--2-aminoethan-1-ol (1/1)Ethanolamine thioglycolate (~85% in water), AldrichCPR
External database identifiers
- EPA DTXSID:DTXSID7059569
Evidence from additional scientific databases
NIH PubChem PUG-View
Exact identifier match160430
Attributed physical-property, hazard, environmental and use annotations.
- Physical Description: Liquid Source: EPA Chemical Data Reporting (CDR)
- Signal: Danger Source: European Chemicals Agency (ECHA)
- GHS Hazard Statements: H290 (39.1%): May be corrosive to metals [Warning Corrosive to Metals]; H301 (100%): Toxic if swallowed [Danger Acute toxicity, oral]; H315 (60.9%): Causes skin irritation [Warning Skin corrosion/irritation]; H317 (39.1%): May cause an allergic skin reaction [Warning Sensitization, Skin]; H319 (60.9%): Causes serious eye irritation [Warning Serious eye damage/eye irritation] Source: European Chemicals Agency (ECHA)
- Precautionary Statement Codes: P234, P261, P264, P264+P265, P270, P272, P280, P301+P316, P302+P352, P305+P351+P338, P321, P330, P332+P317, P333+P317, P337+P317, P362+P364, P390, P405, P406, and P501 (click each P-code to see the statement) Source: European Chemicals Agency (ECHA)
- ECHA C&L Notifications Summary: Aggregated GHS information provided per 64 reports by companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
- Signal: Danger Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
- GHS Hazard Statements: H301: Toxic if swallowed [Danger Acute toxicity, oral]; H312: Harmful in contact with skin [Warning Acute toxicity, dermal]; H315: Causes skin irritation [Warning Skin corrosion/irritation]; H317: May cause an allergic skin reaction [Warning Sensitization, Skin]; H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]; H330: Fatal if inhaled [Danger Acute toxicity, inhalation]; H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]; H373: May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure] Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
- Precautionary Statement Codes: P260, P261, P264, P264+P265, P270, P271, P272, P280, P284, P301+P316, P302+P352, P304+P340, P305+P351+P338, P316, P317, P319, P320, P321, P330, P332+P317, P333+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement) Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
- Cosmetic Ingredient Review Conclusion: Based on the available data, the CIR Expert Panel concluded that ... Ethanolamine Thioglycolate is safe for use in hair straighteners, permanent waves, tonics, dressings, and so forth, wave sets, other non-coloring hair products, and hair dyes and colors, as described in this safety assessment, at concentrations up to 15.2% (as Thioglycolic Acid). Hairdressers should avoid skin contact and minimize consumer skin exposure. Source: Cosmetic Ingredient Review (CIR)
- Cosmetic Ingredient Review Finding(s): Safe for use in cosmetics, with qualifications Source: Cosmetic Ingredient Review (CIR)
- Consumer Uses: Chelating agent Source: EPA Chemical Data Reporting (CDR)
- Industry Uses: Cleaning agent Source: EPA Chemical Data Reporting (CDR)
- Cosmetic Ingredient Review Link: CIR ingredient: Ethanolamine Thioglycolate Source: Cosmetic Ingredient Review (CIR)
Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record
Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.
Additional source coverage and match status
| Source | Result | Checked |
|---|---|---|
| NIH PubChem PUG-View | Exact match | 2026-08-31 |
A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.
Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.