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Sulfur and phosphorus compounds

Ethynethiol

CAS 53750-02-0Formula C2H2SMolar mass 58.11 g/mol
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Ethynethiol chemical structure, C2H2S, CAS 53750-02-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
53750-02-0
Formula
C2H2S
Molar mass
58.11 g/mol
HS code
293090
Category
Sulfur and phosphorus compounds

What is Ethynethiol?

Plain description, key identifiers and synonyms

Ethynethiol is a chemical substance with the molecular formula C2H2S and a molar mass of 58.11 g/mol. Its CAS registry number is 53750-02-0.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
ethynethiol
CAS number
53750-02-0 CAS number cross-checked
Molecular formula
C2H2S
InChIKey
ZHOPKHNLYOLWLE-UHFFFAOYSA-N
InChI
InChI=1S/C2H2S/c1-2-3/h1,3H
SMILES (canonical and isomeric)
C#CS

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
58.11 g/molcalc.
Exact mass
57.9877 Dacalc.
LogP (octanol/water)
0.51calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
0calc.
Heavy atoms
3calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
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.

Ethynethiol suppliers

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Ethynethiol price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

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 Ethynethiol 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 Ethynethiol is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Ethynethiol, based on the data on this page

What is Ethynethiol?

Ethynethiol is a chemical substance with the molecular formula C2H2S and a molar mass of 58.11 g/mol. Its CAS registry number is 53750-02-0.

What is the CAS number of Ethynethiol?

The CAS registry number of Ethynethiol is 53750-02-0.

What is the molecular formula and weight of Ethynethiol?

The molecular formula of Ethynethiol is C2H2S and its molar mass is 58.11 g/mol.

Is Ethynethiol hazardous?

No GHS hazard classification for Ethynethiol 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 Ethynethiol?

Ethynethiol 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 Ethynethiol?

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What is the price of Ethynethiol?

Suppliers quote Ethynethiol 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 Ethynethiol

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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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