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Screening compounds

Stemonacetal

Also known as 6-ethoxy-11-hydroxy-2,3,9-trimethoxy-6H-chromeno(3,4-b)chromen-12-one, 6-ethoxy-11-hydroxy-2,3,9-trimethoxy-6H-chromeno[3,4-b]chromen-12-one, 6-Ethoxy-11-hydroxy-2,3,9-trimethoxy[1]benzopyrano[3,4-b][1]benzopyran-12(6H)-one

CAS 54357-81-2Formula C21H20O8Molar mass 400.38 g/mol
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Stemonacetal chemical structure, C21H20O8, CAS 54357-81-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
54357-81-2
Formula
C21H20O8
Molar mass
400.38 g/mol
HS code
293299
Category
Screening compounds

What is Stemonacetal?

Plain description, key identifiers and synonyms

Stemonacetal is a chemical substance with the molecular formula C21H20O8 and a molar mass of 400.38 g/mol. Its CAS registry number is 54357-81-2. The IUPAC name is 6-ethoxy-11-hydroxy-2,3,9-trimethoxy-6H-chromeno[3,4-b]chromen-12-one.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
6-ethoxy-11-hydroxy-2,3,9-trimethoxy-6H-chromeno[3,4-b]chromen-12-one
CAS number
54357-81-2
Molecular formula
C21H20O8
InChIKey
KLMKGDIYOORAED-UHFFFAOYSA-N
InChI
InChI=1S/C21H20O8/c1-5-27-21-20-17(11-8-14(25-3)15(26-4)9-13(11)29-21)19(23)18-12(22)6-10(24-2)7-16(18)28-20/h6-9,21-22H,5H2,1-4H3
SMILES (canonical and isomeric)
CCOC1C2=C(C3=CC(=C(C=C3O1)OC)OC)C(=O)C4=C(C=C(C=C4O2)OC)O

Synonyms

  • 6-ethoxy-11-hydroxy-2,3,9-trimethoxy-6H-chromeno(3,4-b)chromen-12-one
  • 6-ethoxy-11-hydroxy-2,3,9-trimethoxy-6H-chromeno[3,4-b]chromen-12-one
  • 6-Ethoxy-11-hydroxy-2,3,9-trimethoxy[1]benzopyrano[3,4-b][1]benzopyran-12(6H)-one

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
400.38 g/molcalc.
Exact mass
400.1158 Dacalc.
LogP (octanol/water)
3.62calc.
Topological polar surface area
96.59 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
8calc.
Rotatable bonds
5calc.
Heavy atoms
29calc.
Rings
4calc.
Aromatic rings
3calc.
Fraction sp3 carbons
0.29calc.
Formal charge
0calc.
Stereocentres
1calc.
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=c1c2c(oc3ccccc13)COc1ccccc1-2

O=c1c2c(oc3ccccc13)COc1ccccc1-2

4 rings, 19 atoms.

15 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.

Stemonacetal suppliers

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

Frequently asked questions

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

What is Stemonacetal?

Stemonacetal is a chemical substance with the molecular formula C21H20O8 and a molar mass of 400.38 g/mol. Its CAS registry number is 54357-81-2. The IUPAC name is 6-ethoxy-11-hydroxy-2,3,9-trimethoxy-6H-chromeno[3,4-b]chromen-12-one.

What is the CAS number of Stemonacetal?

The CAS registry number of Stemonacetal is 54357-81-2.

What is the molecular formula and weight of Stemonacetal?

The molecular formula of Stemonacetal is C21H20O8 and its molar mass is 400.38 g/mol.

What is Stemonacetal used for?

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

Is Stemonacetal hazardous?

No GHS hazard classification for Stemonacetal 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 Stemonacetal?

Stemonacetal 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 Stemonacetal?

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

What is the price of Stemonacetal?

Suppliers quote Stemonacetal 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 Stemonacetal

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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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