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Dithiodiglycolic acid

Also known as: 2,2'-Disulfanediyldiacetic acid, 2-(carboxymethyldisulfanyl)acetic acid, Acetic acid, 2,2'-dithiobis-, Dithiodiacetic acid, Dithiodiglycolic acid, 2,2'-Dithiodiacetic acid, Sym-dicarboxydimethyl disulfide

Dithiodiglycolic acid (CAS 505-73-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H6O4S2 and a molecular weight of 182.218 g/mol. Key properties include a melting point of 128-131 °C(lit.), a boiling point of 395.6±27.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 193.0±23.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
505-73-7
Jingsj CID
J-35315-1
Molecular Formula
C4H6O4S2
Molecular Weight
182.218 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point128-131 °C(lit.)
Boiling Point395.6±27.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point193.0±23.7 °C
Exact Mass181.970749
PSA125.20000
LogP1.39
Vapor Pressure0.0±2.0 mmHg at 25°C
Refractive Index1.629

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 Dithiodiglycolic acid?

The CAS number of Dithiodiglycolic acid is 505-73-7.

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

Dithiodiglycolic acid has molecular formula C4H6O4S2 and molecular weight 182.218 g/mol.

What are the upstream and downstream products of Dithiodiglycolic acid?

For Dithiodiglycolic acid, Upstream Products: Thioglycolic acid, Sodium chloroacetate, Chloroacetic acid; Downstream Products: Ethanethiol, Formic Acid, acetic acid.

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

Last updated:

How to cite: Jingsj. "Dithiodiglycolic acid (CAS 505-73-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35315-1 (accessed 2026-11-09).

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