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Heterocyclic compounds

Plaunolide

Also known as Swassin, Plaunol F, Spiro(furan-3(2H),7'(8'H)-(1H)naphtho(1,8a-c)furan)-2,3'(5'H)-dione,5-(3-furanyl)-4,5,6',6'a,9',10'-hexahydro-8'-methylene-, (2S,5S,6'aS,10'aS)-

CAS 69749-03-7Formula C20H20O5Molar mass 340.38 g/mol
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Plaunolide chemical structure, C20H20O5, CAS 69749-03-7
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
69749-03-7
Formula
C20H20O5
Molar mass
340.38 g/mol
HS code
293220
Category
Heterocyclic compounds

What is Plaunolide?

Plain description, key identifiers and synonyms

Plaunolide is a chemical substance with the molecular formula C20H20O5 and a molar mass of 340.38 g/mol. Its CAS registry number is 69749-03-7. The IUPAC name is 5'-(furan-3-yl)-8-methylidenespiro[1,5,6,6a,9,10-hexahydrobenzo[d][2]benzofuran-7,3'-oxolane]-2',3-dione.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
5'-(furan-3-yl)-8-methylidenespiro[1,5,6,6a,9,10-hexahydrobenzo[d][2]benzofuran-7,3'-oxolane]-2',3-dione
CAS number
69749-03-7 CAS number cross-checked
Molecular formula
C20H20O5
InChIKey
WQEZWMOABWIAIU-UHFFFAOYSA-N
InChI
InChI=1S/C20H20O5/c1-12-5-7-19-11-24-17(21)14(19)3-2-4-16(19)20(12)9-15(25-18(20)22)13-6-8-23-10-13/h3,6,8,10,15-16H,1-2,4-5,7,9,11H2
SMILES (canonical and isomeric)
C=C1CCC23COC(=O)C2=CCCC3C14CC(OC4=O)C5=COC=C5

Synonyms

  • Swassin
  • Plaunol F
  • Spiro(furan-3(2H),7'(8'H)-(1H)naphtho(1,8a-c)furan)-2,3'(5'H)-dione,5-(3-furanyl)-4,5,6',6'a,9',10'-hexahydro-8'-methylene-, (2S,5S,6'aS,10'aS)-
  • 5'-(furan-3-yl)-8-methylidenespiro[1,5,6,6a,9,10-hexahydrobenzo[d][2]benzofuran-7,3'-oxolane]-2',3-dione
  • 5'-(furan-3-yl)-8-methylidenespiro(1,5,6,6a,9,10-hexahydrobenzo(d)(2)benzofuran-7,3'-oxolane)-2',3-dione
  • 5'-(Furan-3-yl)-8-methylidene-6,6a,9,10-tetrahydro-1H,8H-spiro[naphtho[1,8a-c]furan-7,3'-oxolane]-2',3(5H)-dione

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
340.38 g/molcalc.
Exact mass
340.1311 Dacalc.
LogP (octanol/water)
3.48calc.
Topological polar surface area
65.74 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
1calc.
Heavy atoms
25calc.
Rings
5calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.5calc.
Formal charge
0calc.
Stereocentres
4calc.
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, C=C1CCC23COC(=O)C2=CCCC3C12CC(c1ccoc1)OC2=O

C=C1CCC23COC(=O)C2=CCCC3C12CC(c1ccoc1)OC2=O

5 rings, 25 atoms. This chemical is the scaffold itself.

No other chemical in our database has this scaffold.

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.

Plaunolide suppliers

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Plaunolide 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

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 Plaunolide is traded under.

HS 2932.20Indicative HS code

Lactones

World exports in 2024
$1.97B
−4.7% vs 2023, imports $2.07B
2019 to 2024
Top exporters
  1. China56.3%
  2. India * partner reported7.4%
  3. Germany7.3%
Top importers
  1. United States14.2%
  2. India * partner reported13.5%
  3. Brazil8.5%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Plaunolide?

Plaunolide is a chemical substance with the molecular formula C20H20O5 and a molar mass of 340.38 g/mol. Its CAS registry number is 69749-03-7. The IUPAC name is 5'-(furan-3-yl)-8-methylidenespiro[1,5,6,6a,9,10-hexahydrobenzo[d][2]benzofuran-7,3'-oxolane]-2',3-dione.

What is the CAS number of Plaunolide?

The CAS registry number of Plaunolide is 69749-03-7.

What is the molecular formula and weight of Plaunolide?

The molecular formula of Plaunolide is C20H20O5 and its molar mass is 340.38 g/mol.

Is Plaunolide hazardous?

No GHS hazard classification for Plaunolide 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 Plaunolide?

Plaunolide is usually classified under HS code 293220 (Lactones). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Plaunolide?

Post a free request on CompoundList and suppliers of Plaunolide will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Plaunolide?

Suppliers quote Plaunolide 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 Plaunolide

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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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