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CAS 147-93-3 may appear across multiple EU annex records. The CAS lookup page shows all Annex II–VI entries sharing this identifier, useful for identifying cross-annex regulatory status of the same chemical substance.

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InventoryRef 3859115/10/2010

THIOSALICYLIC ACID

2-Mercaptobenzoic acid

THIOSALICYLIC ACID is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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Regulatory evidence by market

No rule for this ingredient has been imported for any of the 13 markets tracked here.

That describes this inventory, not the law. No imported rule is not evidence that an ingredient is permitted: a rule may exist under another name or identifier, or in a dataset not yet imported here.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 147-93-3

CAS 147-93-3PubChem CID 5443

2-Mercaptobenzoic Acid

Thiosalicylic acid is a sulfanylbenzoic acid that is the 2-sulfanyl derivative of benzoic acid. It has a role as a non-narcotic analgesic and an antipyretic. It is a conjugate acid of a thiosalicylate(1-). — ChEBI

IUPAC name: 2-sulfanylbenzoic acid

Molecular formula: C7H6O2S
Molecular weight: 154.19 g/mol
Exact mass: 154.00885060 Da
XLogP3: 2.4
Topological polar surface area: 38.3 Å²
Hydrogen-bond donors: 2
Hydrogen-bond acceptors: 3
Covalent units: 1
Defined stereocentres: 0

Also known as

Thiosalicylic acido-Mercaptobenzoic acid2-Thiosalicylic acido-Thiosalicylic acid2-Carboxythiophenolo-Sulfhydrylbenzoic acido-Benzoic acid thiolo-Carboxythiophenol

16 more reported names

Benzoic acid, 2-mercapto-o-MercaptobenzoesaeureSalicylic acid, 2-thio-BENZOIC ACID, O-MERCAPTO-Thiophenol-2-carboxylic acidCIP6LXN5XWNSC-2184NSC-660640CHEBI:59124ortho-mercaptobenzoic acidRefChem:189650205-704-37283-41-2USAF KF-2USAF XR-35USAF EK-T-2805

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:59124
ChEMBL:CHEMBL119888
EPA DTXSID:DTXSID4049032
PubMed:22850849
PubMed:22402746
PubMed:22346674
PubMed:22070282
PubMed:22015977
PubMed:21986997
PubMed:21943314
PubMed:21726871
PubMed:21689418
PubMed:21589382
PubMed:21581768
PubMed:21580481

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Inventory details for THIOSALICYLIC ACID

INCI name

THIOSALICYLIC ACID

Description

2-Mercaptobenzoic acid

Record provenance

Inventory reference: 38591
Imported identity: THIOSALICYLIC ACID
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for THIOSALICYLIC ACID

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Key data

CAS

147-93-3

205-704-3

Restriction

—

Function

ANTIOXIDANT: Inhibiting reactions promoted by oxygen, thus avoiding oxidation and rancidity.
KERATOLYTIC: Helping to eliminate the dead cells of the stratum corneum.
REDUCING: Changing the chemical nature of another ingredient by adding hydrogen (or removing oxygen).

Official EU ingredient-name evidence

The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.

#28769 · THIOSALICYLIC ACID

Ingredients with overlapping formulation functions

SUBTILISINKERATOLYTIC, SKIN CONDITIONING

SUTILAINSKERATOLYTIC

TAMARINDUS INDICA EXTRACTKERATOLYTIC, SMOOTHING

THIOGLYCERINDEPILATORY, HAIR WAVING OR STRAIGHTENING, KERATOLYTIC, REDUCING

Additional official and scientific sources

11 external databases to check this identity in

Each link searches that source for this identity. What each source is, and its legal weight

ECHA CHEM / Information on chemicals PubChem PUG REST EU Safety Gate cosmetic product alerts ECHA CHEM US EPA CompTox Cosmetic Ingredient Review safety assessments FDA Global Substance Registration System ILO/WHO International Chemical Safety Cards Japan NITE-CHRIP NIOSH Pocket Guide to Chemical Hazards OECD eChemPortal

How THIOSALICYLIC ACID appears in the CosIng inventory

The CosIng inventory lists THIOSALICYLIC ACID as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.

THIOSALICYLIC ACID is also tagged with 3 cosmetic functions in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

THIOSALICYLIC ACID is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Absence of an annex link does not guarantee unrestricted use — always verify against the current official CosIng database before formulating.

According to the EU CosIng inventory, THIOSALICYLIC ACID carries the following function designation(s):

CAS 147-93-3 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.

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Source note for THIOSALICYLIC ACID

This page reproduces the CosIng inventory entry for THIOSALICYLIC ACID from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.

Use this inventory page to research THIOSALICYLIC ACID and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

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