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Thiosalicylic acid

Also known as: 2-Mercaptobenzoic acid, o-Mercaptobenzoic acid, o-Sulfhydrylbenzoic acid, 2-Sulfanylbenzoic acid, Benzoic acid, 2-mercapto-

Thiosalicylic acid (CAS 147-93-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H6O2S and a molecular weight of 154.186 g/mol. Key properties include a melting point of 162-165 °C(lit.), a boiling point of 298.6±23.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 134.4±22.6 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
147-93-3
Jingsj CID
J-1099099-5
Molecular Formula
C7H6O2S
Molecular Weight
154.186 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point162-165 °C(lit.)
Boiling Point298.6±23.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point134.4±22.6 °C
Exact Mass154.008850
PSA76.10000
LogP2.39
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.642
Additional Propertysoluble in hot water

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2930909090
Summary2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Thiosalicylic acid?

The CAS number of Thiosalicylic acid is 147-93-3.

What are the molecular formula and molecular weight of Thiosalicylic acid?

Thiosalicylic acid has molecular formula C7H6O2S and molecular weight 154.186 g/mol.

Is Thiosalicylic acid hazardous?

Thiosalicylic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of Thiosalicylic acid?

For Thiosalicylic acid, Upstream Products: 2-Iodobenzoic acid, 2,2'-Dithiodibenzoic acid, Methyl thiosalicylate; Downstream Products: Methyl 2-(methylthio)benzoate, methyl 2-[[2-nitro-5-(phenylmethoxy)phenyl]thio]benzoate, Benzo[b]thiophene-2-carboxaldehyde.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Thiosalicylic acid (CAS 147-93-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1099099-5 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.