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Carboxylic acids and anhydrides

2,5-Dimercaptohexanedioic acid

Also known as 2,5-Dimercaptoadipic acid, alpha,alpha'-Dimercaptoadipate, Adipic acid, 2,5-dimercapto-

CAS 5139-01-5Formula C6H10O4S2Molar mass 210.28 g/mol
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2,5-Dimercaptohexanedioic acid chemical structure, C6H10O4S2, CAS 5139-01-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
5139-01-5
Formula
C6H10O4S2
Molar mass
210.28 g/mol
HS code
293090
Category
Carboxylic acids and anhydrides

What is 2,5-Dimercaptohexanedioic acid?

Plain description, key identifiers and synonyms

2,5-Dimercaptohexanedioic acid is a chemical substance with the molecular formula C6H10O4S2 and a molar mass of 210.28 g/mol. Its CAS registry number is 5139-01-5. The IUPAC name is 2,5-bis(sulfanyl)hexanedioic acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2,5-bis(sulfanyl)hexanedioic acid
CAS number
5139-01-5 CAS number cross-checked
Molecular formula
C6H10O4S2
InChIKey
SUVZGLSQFGNBQI-UHFFFAOYSA-N
InChI
InChI=1S/C6H10O4S2/c7-5(8)3(11)1-2-4(12)6(9)10/h3-4,11-12H,1-2H2,(H,7,8)(H,9,10)
SMILES (canonical and isomeric)
C(CC(C(=O)O)S)C(C(=O)O)S

Synonyms

  • 2,5-Dimercaptoadipic acid
  • alpha,alpha'-Dimercaptoadipate
  • Adipic acid, 2,5-dimercapto-
  • NIOSH/AV1642500
  • Hexanedioic acid, 2,5-dimercapto-
  • ethylene-bis-thioglycolic acid
  • 3,4-dideoxy-2,5-dithiohexaric acid

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
210.28 g/molcalc.
Exact mass
210.0021 Dacalc.
LogP (octanol/water)
0.53calc.
Topological polar surface area
74.6 Ųcalc.
Hydrogen bond donors
4calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
5calc.
Heavy atoms
12calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.67calc.
Formal charge
0calc.
Stereocentres
2calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

2,5-Dimercaptohexanedioic acid suppliers

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2,5-Dimercaptohexanedioic acid price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code 2,5-Dimercaptohexanedioic acid is traded under.

HS 2930.90Indicative HS code

Organo-sulphur compounds, other

World exports in 2024
$5.83B
+0.1% vs 2023, imports $5.93B
2019 to 2024
Top exporters
  1. China40.7%
  2. United States10.9%
  3. Japan9.3%
Top importers
  1. United States13.3%
  2. Brazil12.6%
  3. China6.6%
Reported customs values in USD, not prices.Full trade data

The HS code shown for 2,5-Dimercaptohexanedioic acid is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 2,5-Dimercaptohexanedioic acid, based on the data on this page

What is 2,5-Dimercaptohexanedioic acid?

2,5-Dimercaptohexanedioic acid is a chemical substance with the molecular formula C6H10O4S2 and a molar mass of 210.28 g/mol. Its CAS registry number is 5139-01-5. The IUPAC name is 2,5-bis(sulfanyl)hexanedioic acid.

What is the CAS number of 2,5-Dimercaptohexanedioic acid?

The CAS registry number of 2,5-Dimercaptohexanedioic acid is 5139-01-5.

What is the molecular formula and weight of 2,5-Dimercaptohexanedioic acid?

The molecular formula of 2,5-Dimercaptohexanedioic acid is C6H10O4S2 and its molar mass is 210.28 g/mol.

What is 2,5-Dimercaptohexanedioic acid used for?

Known uses and roles of 2,5-Dimercaptohexanedioic acid include building blocks in research and laboratory.

Is 2,5-Dimercaptohexanedioic acid hazardous?

No GHS hazard classification for 2,5-Dimercaptohexanedioic acid is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of 2,5-Dimercaptohexanedioic acid?

2,5-Dimercaptohexanedioic acid is usually classified under HS code 293090 (Organo-sulphur compounds, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 2,5-Dimercaptohexanedioic acid?

Post a free request on CompoundList and suppliers of 2,5-Dimercaptohexanedioic acid will send you quotes. Your contact details stay private until you accept a quote.

What is the price of 2,5-Dimercaptohexanedioic acid?

Suppliers quote 2,5-Dimercaptohexanedioic acid on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle 2,5-Dimercaptohexanedioic acid

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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