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Screening compounds

Aflatoxin ExB2

Also known as 5-ethoxy-11-methoxy-6,8,19-trioxapentacyclo[10.7.0.02,9.03,7.013,17]nonadeca-1,9,11,13(17)-tetraene-16,18-dione, Cyclopenta[c]furo[3a(2),2a(2):4,5]furo[2,3-h][1]benzopyran-1,11-dione, 8-ethoxy-2,3,6a,8,9,9a-hexahydro-4-methoxy-

CAS 23402-20-2Formula C19H18O7Molar mass 358.35 g/mol
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Aflatoxin ExB2 chemical structure, C19H18O7, CAS 23402-20-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
23402-20-2
Formula
C19H18O7
Molar mass
358.35 g/mol
HS code
293220
Category
Screening compounds

What is Aflatoxin ExB2?

Plain description, key identifiers and synonyms

Aflatoxin ExB2 is a member of coumarins.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
5-ethoxy-11-methoxy-6,8,19-trioxapentacyclo[10.7.0.02,9.03,7.013,17]nonadeca-1,9,11,13(17)-tetraene-16,18-dione
CAS number
23402-20-2
Molecular formula
C19H18O7
InChIKey
PPRSMUWPTLLGMJ-UHFFFAOYSA-N
InChI
InChI=1S/C19H18O7/c1-3-23-13-6-9-16-12(24-19(9)25-13)7-11(22-2)15-8-4-5-10(20)14(8)18(21)26-17(15)16/h7,9,13,19H,3-6H2,1-2H3
SMILES (canonical and isomeric)
CCOC1CC2C(O1)OC3=CC(=C4C5=C(C(=O)CC5)C(=O)OC4=C23)OC

Synonyms

  • 5-ethoxy-11-methoxy-6,8,19-trioxapentacyclo[10.7.0.02,9.03,7.013,17]nonadeca-1,9,11,13(17)-tetraene-16,18-dione
  • Cyclopenta[c]furo[3a(2),2a(2):4,5]furo[2,3-h][1]benzopyran-1,11-dione, 8-ethoxy-2,3,6a,8,9,9a-hexahydro-4-methoxy-

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
358.35 g/molcalc.
Exact mass
358.1053 Dacalc.
LogP (octanol/water)
2.52calc.
Topological polar surface area
84.2 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
7calc.
Rotatable bonds
3calc.
Heavy atoms
26calc.
Rings
5calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.47calc.
Formal charge
0calc.
Stereocentres
3calc.
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=C1CCc2c1c(=O)oc1c3c(ccc21)OC1OCCC31

O=C1CCc2c1c(=O)oc1c3c(ccc21)OC1OCCC31

5 rings, 21 atoms.

35 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.

Aflatoxin ExB2 suppliers

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

No supplier listings yet

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Aflatoxin ExB2 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 Aflatoxin ExB2 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 Aflatoxin ExB2 is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Aflatoxin ExB2, based on the data on this page

What is Aflatoxin ExB2?

Aflatoxin ExB2 is a member of coumarins.

What is the CAS number of Aflatoxin ExB2?

The CAS registry number of Aflatoxin ExB2 is 23402-20-2.

What is the molecular formula and weight of Aflatoxin ExB2?

The molecular formula of Aflatoxin ExB2 is C19H18O7 and its molar mass is 358.35 g/mol.

What is Aflatoxin ExB2 used for?

Known uses and roles of Aflatoxin ExB2 include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Aflatoxin ExB2 hazardous?

No GHS hazard classification for Aflatoxin ExB2 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 Aflatoxin ExB2?

Aflatoxin ExB2 is usually classified under HS code 293220 (Lactones). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Aflatoxin ExB2?

Post a free request on CompoundList and suppliers of Aflatoxin ExB2 will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Aflatoxin ExB2?

Suppliers quote Aflatoxin ExB2 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 Aflatoxin ExB2

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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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