Thiodiacetic acid

2,2'-硫代二乙酸

Also known as: Thiodiglycolic acid, 2,2'-Sulfanediyldiacetic acid, Dicarboxydimethyl sulfide, Dimethylsulfide-α,α'-dicarboxylic acid, 2-(carboxymethylsulfanyl)acetic acid

CAS No.
123-93-3
Jingsj CID
J-1497826-7
Molecular Formula
C4H6O4S
Chinese Name
2,2'-硫代二乙酸
Molecular Weight
150.153 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point128-131 °C(lit.)
Boiling Point377.0±27.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point181.8±23.7 °C

GHS Safety & Compliance

CorrosionSignal word: Danger

Frequently Asked Questions

What is the CAS number of Thiodiacetic acid?

123-93-3

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

C4H6O4S, molecular weight 150.153 g/mol

Is Thiodiacetic acid hazardous?

Danger

Data compiled from public chemical databases and supplier catalogs; verify specifications with suppliers before purchase. · Last updated: 8/21/2026