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Sulfur and phosphorus compounds

2,3-Dimercaptopropane

Also known as 1,2-Propanedithiol, Propane-1,2-dithiol, 1,2-Dimercaptopropane

CAS 814-67-5Formula C3H8S2Molar mass 108.23 g/molEC 212-398-5
GHS signal word: Warning. Pictograms: Harmful or irritant
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2,3-Dimercaptopropane chemical structure, C3H8S2, CAS 814-67-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
814-67-5
Formula
C3H8S2
Molar mass
108.23 g/mol
EC number
212-398-5
HS code
293090
Category
Sulfur and phosphorus compounds

What is 2,3-Dimercaptopropane?

Plain description, key identifiers and synonyms

2,3-Dimercaptopropane is a chemical substance with the molecular formula C3H8S2 and a molar mass of 108.23 g/mol. Its CAS registry number is 814-67-5. The IUPAC name is propane-1,2-dithiol.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
propane-1,2-dithiol
CAS number
814-67-5 CAS number cross-checked
EC number
212-398-5
Molecular formula
C3H8S2
UNII
GS64223D79
MDL number
MFCD00022073
InChIKey
YGKHJWTVMIMEPQ-UHFFFAOYSA-N
InChI
InChI=1S/C3H8S2/c1-3(5)2-4/h3-5H,2H2,1H3
SMILES (canonical and isomeric)
CC(CS)S

Synonyms

  • 1,2-Propanedithiol
  • Propane-1,2-dithiol
  • 1,2-Dimercaptopropane
  • 1,2-Dithiolpropane
  • 1-Methyl-1,2-ethanedithiol
  • 1,2-propane dithiol
  • 1,2-Propanedithiol-propylene dimercaptan
  • 1,2-propandithiol
  • Propan-1,2-dithiol
  • Propylenedithiol
  • Dithiopropylene glycol
  • Propylene dithioglycol
  • 4-01-00-02492 (Beilstein Handbook Reference)
  • Ygkhjwtvmimepq-uhfffaoysa-
  • (+/-)-1,2-Propanedithiol
  • 1,2-Propanedithiol, (+/-)-

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
108.23 g/molcalc.
Exact mass
108.0067 Dacalc.
LogP (octanol/water)
1.23calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
1calc.
Heavy atoms
5calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
Formal charge
0calc.
Stereocentres
1calc.
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

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H302Harmful if swallowed.
Precautionary statements (5)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P301 + P317If swallowed: Get medical help.
  • P330Rinse mouth.
  • P501Dispose of contents and container in accordance with local regulations.

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

Full safety data and first aid

2,3-Dimercaptopropane suppliers

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2,3-Dimercaptopropane 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

Functional uses

  • Flavouring and nutrient

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code 2,3-Dimercaptopropane 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 2,3-Dimercaptopropane is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 2,3-Dimercaptopropane, based on the data on this page

What is 2,3-Dimercaptopropane?

2,3-Dimercaptopropane is a chemical substance with the molecular formula C3H8S2 and a molar mass of 108.23 g/mol. Its CAS registry number is 814-67-5. The IUPAC name is propane-1,2-dithiol.

What is the CAS number of 2,3-Dimercaptopropane?

The CAS registry number of 2,3-Dimercaptopropane is 814-67-5.

What is the molecular formula and weight of 2,3-Dimercaptopropane?

The molecular formula of 2,3-Dimercaptopropane is C3H8S2 and its molar mass is 108.23 g/mol.

What is 2,3-Dimercaptopropane used for?

Known uses and roles of 2,3-Dimercaptopropane include flavouring and nutrient.

Is 2,3-Dimercaptopropane hazardous?

2,3-Dimercaptopropane carries the GHS signal word "Warning". Main hazards: harmful if swallowed. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 2,3-Dimercaptopropane?

2,3-Dimercaptopropane 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 2,3-Dimercaptopropane?

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What is the price of 2,3-Dimercaptopropane?

Suppliers quote 2,3-Dimercaptopropane 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 2,3-Dimercaptopropane

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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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