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Screening compounds

Excoecarin B

Also known as 1H-Naphtho(2,1-b)pyran-8(4aH)-one, decahydro-3,4a,7,7,10a-pentamethyl-3-(2R)-oxiranyl-, (3R,4aS,6aS,10aR,10bS)-

CAS 183900-29-0Formula C20H32O3Molar mass 320.47 g/mol
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Excoecarin B chemical structure, C20H32O3, CAS 183900-29-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
183900-29-0
Formula
C20H32O3
Molar mass
320.47 g/mol
HS code
293299
Category
Screening compounds

What is Excoecarin B?

Plain description, key identifiers and synonyms

Excoecarin B has been reported in Excoecaria agallocha.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(3R,4aS,6aS,10aR,10bS)-3,4a,7,7,10a-pentamethyl-3-[(2R)-oxiran-2-yl]-1,2,5,6,6a,9,10,10b-octahydrobenzo[f]chromen-8-one
CAS number
183900-29-0
Molecular formula
C20H32O3
InChIKey
NQXNNCAQMVIHBL-RUOLKGTKSA-N
InChI
InChI=1S/C20H32O3/c1-17(2)13-6-10-19(4)14(18(13,3)9-8-15(17)21)7-11-20(5,23-19)16-12-22-16/h13-14,16H,6-12H2,1-5H3/t13-,14+,16-,18-,19+,20-/m1/s1
Canonical SMILES
CC1(C2CO2)CCC2C(C)(CCC3C(C)(C)C(=O)CCC23C)O1
Isomeric SMILES
C[C@@]12CCC(=O)C([C@H]1CC[C@]3([C@H]2CC[C@](O3)(C)[C@H]4CO4)C)(C)C

Synonyms

  • 1H-Naphtho(2,1-b)pyran-8(4aH)-one, decahydro-3,4a,7,7,10a-pentamethyl-3-(2R)-oxiranyl-, (3R,4aS,6aS,10aR,10bS)-

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
320.47 g/molcalc.
Exact mass
320.2351 Dacalc.
LogP (octanol/water)
4.13calc.
Topological polar surface area
38.83 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
1calc.
Heavy atoms
23calc.
Rings
4calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.95calc.
Formal charge
0calc.
Stereocentres
6calc.
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=C1CCC2C(CCC3OC(C4CO4)CCC32)C1

O=C1CCC2C(CCC3OC(C4CO4)CCC32)C1

4 rings, 18 atoms.

1 other chemical 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.

Excoecarin B suppliers

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Excoecarin B 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

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 Excoecarin B is traded under.

HS 2932.99Indicative HS code

Heterocyclic compounds with oxygen hetero-atom(s) only, other

World exports in 2024
$3.81B
+10.3% vs 2023, imports $7.05B
2019 to 2024
Top exporters
  1. China28.9%
  2. Switzerland * partner reported12.7%
  3. Germany7.8%
Top importers
  1. United States49.7%
  2. China11.9%
  3. India * partner reported3.3%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Excoecarin B, based on the data on this page

What is Excoecarin B?

Excoecarin B has been reported in Excoecaria agallocha.

What is the CAS number of Excoecarin B?

The CAS registry number of Excoecarin B is 183900-29-0.

What is the molecular formula and weight of Excoecarin B?

The molecular formula of Excoecarin B is C20H32O3 and its molar mass is 320.47 g/mol.

What is Excoecarin B used for?

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

Is Excoecarin B hazardous?

No GHS hazard classification for Excoecarin B 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 Excoecarin B?

Excoecarin B is usually classified under HS code 293299 (Heterocyclic compounds with oxygen hetero-atom(s) only, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Excoecarin B?

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

What is the price of Excoecarin B?

Suppliers quote Excoecarin B 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 Excoecarin B

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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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