Molekula

1,2-Ethanedithiol

SKU 26948073 CAS 540-63-6 C2H6S2 MW 94.20 Available on enquiry

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ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Certificate of Analysis with every batch

1,2-Ethanedithiol (CAS 540-63-6) is a colorless, flammable liquid with a strong garlic-like odor, primarily used as a cation scavenger in trifluoroacetic acid (TFA) peptide-cleavage cocktails, a metal chelating agent, and in organic synthesis for disulfide bond formation. It is also employed in semiconductor manufacturing and as a reagent in analytical chemistry. This chemical has a molecular formula of C2H6S2 and a molecular weight of 94.20 g/mol. It should be stored at ambient conditions but handled with caution, as it carries a "Danger" signal word due to its toxicity and flammability. Molekula supplies 1,2-Ethanedithiol from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

This substance is available from Molekula on enquiry. Full specification, Safety Data Sheet and Certificate of Analysis documentation are provided with your quotation once our team confirms the grade and pack size you need.

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Overview

SKU: 26948073
CAS Number: 540-63-6
IUPAC Name: ethane-1,2-dithiol
EC Number: 208-752-3
Molecular Formula: C2H6S2
Molecular Weight: 94.20
Exact Mass: 93.9911
SMILES: C(CS)S
InChIKey: VYMPLPIFKRHAAC-UHFFFAOYSA-N
InChI: InChI=1S/C2H6S2/c3-1-2-4/h3-4H,1-2H2
PubChem CID: 10902

Synonyms

1,2-Dimercaptoethane
Dithioethyleneglycol
Dithioglycol
Ethane-1,2-dithiol
Ethylene dimercaptan
Ethylene dithioglycol
Ethylene glycol, dithio-
Ethylene mercaptan
Ethylenedithiol
S-Ethylene dimercaptan

Literature values

Published physical properties of the substance, not batch specifications.

Appearance: Liquid
Melting Point: -41.2 °C
Boiling Point: 146 °C at 760 mmHg
Solubility (other solvents): Freely soluble in alkalies
Vapour Pressure: 5.61 mmHg at 25 °C (Extrapolated)
Refractive Index: 1.5589
pKa: pKa = 8.96

Source: PubChem CID 10902 (HSDB)

Frequently asked questions

What is 1,2-Ethanedithiol commonly used for?

1,2-Ethanedithiol is primarily used as a ligand in metal chelation, a cross-linking agent in polymer chemistry, and a sulfur source in organic synthesis, including the formation of 1,3-dithiolanes to protect carbonyl groups and the production of pharmaceutical intermediates.

What is the chemical formula and molecular weight of 1,2-Ethanedithiol?

The chemical formula is C₂H₆S₂, and the molecular weight is 94.20 g/mol.

How should 1,2-Ethanedithiol be stored?

Store at ambient temperature in a cool, dry, well-ventilated area, away from incompatible substances like oxidizers, and keep containers tightly sealed.

What purity grades of 1,2-Ethanedithiol does Molekula supply?

Molekula supplies technical grade (98%+ purity) and analytical/ACS grade for high-purity applications—please specify your requirements when ordering.

Can Molekula supply 1,2-Ethanedithiol in bulk quantities?

Yes, we offer bulk packaging options (e.g., 25kg drums, 200kg IBCs) for industrial and large-scale applications—contact us for custom quotes.

What documentation is provided with a 1,2-Ethanedithiol order?

Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS/SDS), and batch-specific documentation for traceability and compliance.

Related products

Molekula has supplied fine chemicals and biochemicals since 1999, and its facilities are ISO 9001:2015 and ISO 14001:2015 certified. Every dispatched batch is logged with a batch number and matched to a Certificate of Analysis, and Safety Data Sheets are available in five languages.