Thiodiacetic acid
Also known as: Thiodiglycolic acid, 2,2'-Sulfanediyldiacetic acid, Dicarboxydimethyl sulfide, Dimethylsulfide-α,α'-dicarboxylic acid, 2-(carboxymethylsulfanyl)acetic acid
Thiodiacetic acid (CAS 123-93-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H6O4S and a molecular weight of 150.153 g/mol. Key properties include a melting point of 128-131 °C(lit.), a boiling point of 377.0±27.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 181.8±23.7 °C. It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 123-93-3
- Jingsj CID
- J-1497826-8
- Molecular Formula
- C4H6O4S
- Molecular Weight
- 150.153 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 128-131 °C(lit.) |
|---|---|
| Boiling Point | 377.0±27.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 181.8±23.7 °C |
| Exact Mass | 149.998672 |
| PSA | 99.90000 |
| LogP | -0.78 |
| Vapor Pressure | 0.0±1.8 mmHg at 25°C |
| Refractive Index | 1.562 |
| Storage Conditions | −20°C |
| Additional Property | soluble |
GHS Safety & Compliance
- H314 — Causes severe skin burns and eye damage
Customs & Trade Information
| HS Code | 29309070 |
|---|
Frequently Asked Questions
What is the CAS number of Thiodiacetic acid?
The CAS number of Thiodiacetic acid is 123-93-3.
What are the molecular formula and molecular weight of Thiodiacetic acid?
Thiodiacetic acid has molecular formula C4H6O4S and molecular weight 150.153 g/mol.
Is Thiodiacetic acid hazardous?
Thiodiacetic acid has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage.
What are the upstream and downstream products of Thiodiacetic acid?
For Thiodiacetic acid, Upstream Products: Chloroacetic acid, Sodium chloroacetate, Thiodiglycol; Downstream Products: Thiodiglycolic anhydride, Diethyl 2,2'-thiodiacetate, Bis(2-ethylhexyl) 2,2'-thiobisacetate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Thiodiacetic acid (CAS 123-93-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1497826-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.