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Heterocyclic compounds

Thietane

Also known as Trimethylene sulfide, Thiacyclobutane, Propane, 1,3-epithio-

CAS 287-27-4Formula C3H6SMolar mass 74.15 g/molEC 206-015-0
GHS signal word: Danger. Pictograms: Flammable, Harmful or irritant 1 supplier listed
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Thietane chemical structure, C3H6S, CAS 287-27-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
287-27-4
Formula
C3H6S
Molar mass
74.15 g/mol
Physical form
Liquid
HS code
293499
Category
Heterocyclic compounds
Illustrative photo, assorted laboratory chemical bottles and jars on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Thietane?

Plain description, key identifiers and synonyms

Thietane is an organosulfur heterocyclic compound containing a saturated four membered ring with 3 carbon atoms and 1 sulfur atom. It has a role as a metabolite. It is a saturated organic heteromonocyclic parent and an organosulfur heterocyclic compound.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
thietane
CAS number
287-27-4 CAS number cross-checkedOther or deprecated CAS: 25821-32-3
EC number
206-015-0
Molecular formula
C3H6S
UNII
1O7C19QQDB
MDL number
MFCD00042751
InChIKey
XSROQCDVUIHRSI-UHFFFAOYSA-N
InChI
InChI=1S/C3H6S/c1-2-4-3-1/h1-3H2
SMILES (canonical and isomeric)
C1CSC1

Synonyms

  • Trimethylene sulfide
  • Thiacyclobutane
  • Propane, 1,3-epithio-
  • 1,3-epithio propane
  • Trimethylene sulfide (8CI)
  • Trimethylenesulfide
  • Trimethylene sulfide, >=96.0% (GC)

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

Physical form
Liquidexp.

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
74.15 g/molcalc.
Exact mass
74.019 Dacalc.
LogP (octanol/water)
1.12calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
0calc.
Heavy atoms
4calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, C1CSC1

C1CSC1

1 ring, 4 atoms. This chemical is the scaffold itself.

497 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS02: Flammable
Flammable
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H225Highly flammable liquid and vapour.
  • H302Harmful if swallowed.
Precautionary statements (15)
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P233Keep container tightly closed.
  • P240Ground and bond container and receiving equipment.
  • P241Use explosion-proof electrical, ventilating and lighting equipment.
  • P242Use non-sparking tools.
  • P243Take action to prevent static discharges.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P303 + P361 + P353If on skin (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower.
  • P330Rinse mouth.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P403 + P235Store in a well-ventilated place. Keep cool.
  • 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

Thietane suppliers

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Where suppliers are based

1 supplier in 1 country

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Thietane price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Roles

  • metabolite

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Inactive 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 Thietane is traded under.

HS 2934.99Indicative HS code

Nucleic acids and their salts, other heterocyclic compounds, not elsewhere classified in heading 2934

World exports in 2024
$26.7B
+15.0% vs 2023, imports $26.3B
2019 to 2024
Top exporters
  1. Ireland26.3%
  2. China15.7%
  3. Singapore10.3%
Top importers
  1. United States24.5%
  2. Germany23.1%
  3. Japan4.5%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Thietane is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Thietane?

Thietane is an organosulfur heterocyclic compound containing a saturated four membered ring with 3 carbon atoms and 1 sulfur atom. It has a role as a metabolite. It is a saturated organic heteromonocyclic parent and an organosulfur heterocyclic compound.

What is the CAS number of Thietane?

The CAS registry number of Thietane is 287-27-4. Other or deprecated CAS numbers: 25821-32-3.

What is the molecular formula and weight of Thietane?

The molecular formula of Thietane is C3H6S and its molar mass is 74.15 g/mol.

What is Thietane used for?

Known uses and roles of Thietane include metabolite.

Is Thietane hazardous?

Thietane carries the GHS signal word "Danger". Main hazards: highly flammable liquid and vapour, harmful if swallowed. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Thietane?

Thietane is usually classified under HS code 293499 (Nucleic acids and their salts, whether or not chemically defined, other heterocyclic…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Thietane?

CompoundList lists 1 supplier of Thietane in United Kingdom. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Thietane?

Suppliers quote Thietane 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 Thietane

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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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