CompoundList
Sign in
Heterocyclic building blocks

Plenolin

Also known as 11,13-Dihydrohelenalin, (1S,3aR,5R,5aR,8aR,9S,9aS)-9-hydroxy-1,5,8a-trimethyl-3a,4,5,5a,9,9a-hexahydro-1H-azuleno[6,7-b]furan-2,8-dione, (1S,3aR,5R,5aR,8aR,9S,9aS)-9-hydroxy-1,5,8a-trimethyl-3a,4,5,5a,9,9a-hexahydro-1H-azuleno(6,7-b)furan-2,8-dione

CAS 34257-95-9Formula C15H20O4Molar mass 264.32 g/mol
Get quotes Safety data
Plenolin chemical structure, C15H20O4, CAS 34257-95-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
34257-95-9
Formula
C15H20O4
Molar mass
264.32 g/mol
HS code
293220
Category
Heterocyclic building blocks

What is Plenolin?

Plain description, key identifiers and synonyms

Plenolin is a sesquiterpene lactone.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(1S,3aR,5R,5aR,8aR,9S,9aS)-9-hydroxy-1,5,8a-trimethyl-3a,4,5,5a,9,9a-hexahydro-1H-azuleno[6,7-b]furan-2,8-dione
CAS number
34257-95-9 CAS number cross-checked
Molecular formula
C15H20O4
UNII
T7Z3NV8U7T
InChIKey
ICKWITMQEROMDG-ZIXXKTFOSA-N
InChI
InChI=1S/C15H20O4/c1-7-6-10-12(8(2)14(18)19-10)13(17)15(3)9(7)4-5-11(15)16/h4-5,7-10,12-13,17H,6H2,1-3H3/t7-,8+,9+,10-,12-,13+,15+/m1/s1
Canonical SMILES
CC1CC2OC(=O)C(C)C2C(O)C2(C)C(=O)C=CC12
Isomeric SMILES
C[C@@H]1C[C@@H]2[C@@H]([C@@H](C(=O)O2)C)[C@@H]([C@]3([C@H]1C=CC3=O)C)O

Synonyms

  • 11,13-Dihydrohelenalin
  • (1S,3aR,5R,5aR,8aR,9S,9aS)-9-hydroxy-1,5,8a-trimethyl-3a,4,5,5a,9,9a-hexahydro-1H-azuleno[6,7-b]furan-2,8-dione
  • (1S,3aR,5R,5aR,8aR,9S,9aS)-9-hydroxy-1,5,8a-trimethyl-3a,4,5,5a,9,9a-hexahydro-1H-azuleno(6,7-b)furan-2,8-dione
  • 11,13-Dihyrdrohelenalin
  • Dihydrohelenalin (Plenolin)
  • 4-Hydroxy-3,4a,8-trimethyl-3,3a,4,4a,7a,8,9,9a- octahydroazuleno[6,5-b]furan-2,5-dione
  • (3S,3as,4S,4ar,7ar,8R,9ar)-3,3a,4,4a,7a,8,9,9a-octahydro-4-hydroxy-3,4a,8-trimethylazuleno(6,5-b)furan-2,5-dione
  • Ambros-2-en-12-oic acid, 6alpha,8beta-dihydroxy-4-oxo-, 12,8-lactone, (11S)-
  • Azuleno(6,5-b)furan-2,5-dione, 3,3a,4,4a,7a,8,9,9a-octahydro-4-hydroxy-3,4a,8-trimethyl-, (3S,3as,4S,4ar,7ar,8R,9ar)-

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
264.32 g/molcalc.
Exact mass
264.1362 Dacalc.
LogP (octanol/water)
1.33calc.
Topological polar surface area
63.6 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
0calc.
Heavy atoms
19calc.
Rings
3calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.73calc.
Formal charge
0calc.
Stereocentres
7calc.
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, O=C1CC2CC3C(=O)C=CC3CCC2O1

O=C1CC2CC3C(=O)C=CC3CCC2O1

3 rings, 15 atoms.

16 other chemicals share 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.

Plenolin suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

No supplier listings yet

Post one free request and suppliers who make or trade Plenolin can send you quotes. Your contact details stay private until you accept a quote.

Request quotesSell this chemical

Plenolin 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.

Get latest price

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

Frequently asked questions

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

What is Plenolin?

Plenolin is a sesquiterpene lactone.

What is the CAS number of Plenolin?

The CAS registry number of Plenolin is 34257-95-9.

What is the molecular formula and weight of Plenolin?

The molecular formula of Plenolin is C15H20O4 and its molar mass is 264.32 g/mol.

What is Plenolin used for?

Known uses and roles of Plenolin include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Plenolin hazardous?

No GHS hazard classification for Plenolin 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 Plenolin?

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

Where can I buy Plenolin?

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

What is the price of Plenolin?

Suppliers quote Plenolin 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 Plenolin

Get quotes for Plenolin

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Plenolin
Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
Embed this structure on your websiteShow code

Paste this code into your page to show the 2D structure of Plenolin with a 3D view, its CAS number where known and a link back to this page. Free to use with the link kept.

<iframe src="https://www.compoundlist.com/embed/structure/plenolin-34257-95-9" title="Plenolin structure on CompoundList" width="360" height="420" style="border:1px solid #E7E2DA;border-radius:12px;max-width:100%" loading="lazy" referrerpolicy="strict-origin-when-cross-origin"></iframe>
Preview the embed

Explore more in Heterocyclic building blocks or HS code 293220

Price on request
Free quotes, contact stays private
Get quotes