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Phenols

Isorhapontigenin

Also known as 3'-methoxy-resveratrol, 5-[(E)-2-(4-hydroxy-3-methoxyphenyl)ethenyl]benzene-1,3-diol, 5-((E)-2-(4-hydroxy-3-methoxyphenyl)ethenyl)benzene-1,3-diol

CAS 32507-66-7Formula C15H14O4Molar mass 258.27 g/molEC 803-480-7
GHS signal word: Danger. Pictograms: Corrosive, Harmful or irritant 5 suppliers listed
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Isorhapontigenin chemical structure, C15H14O4, CAS 32507-66-7
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
32507-66-7
Formula
C15H14O4
Molar mass
258.27 g/mol
EC number
803-480-7
HS code
290950
Category
Phenols

What is Isorhapontigenin?

Plain description, key identifiers and synonyms

Isorhapontigenin is a stilbenol that is trans-stilbene in which one of the phenyl groups is substituted by hydroxy groups at positions 3 and 5, while the other phenyl group is substituted by a methoxy group at position 3 and a hydroxy group at position 4. It natural product isolated from the seeds of Aphanes aculeata and has antioxidant, anti-tumour, and anti-inflammatory effects. It has a role as an antioxidant, an antiviral agent, a hypoglycemic agent, an antineoplastic agent, an anti-inflammatory agent, a plant metabolite and a cardioprotective agent. It is a member of guaiacols, a polyphenol, a member of resorcinols and a stilbenol. It is functionally related to a piceatannol.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
5-[(E)-2-(4-hydroxy-3-methoxyphenyl)ethenyl]benzene-1,3-diol
CAS number
32507-66-7Other or deprecated CAS: 20767-15-1
EC number
803-480-7
Molecular formula
C15H14O4
UNII
CZ49V3K5HS
MDL number
MFCD12407151
InChIKey
ANNNBEZJTNCXHY-NSCUHMNNSA-N
InChI
InChI=1S/C15H14O4/c1-19-15-8-10(4-5-14(15)18)2-3-11-6-12(16)9-13(17)7-11/h2-9,16-18H,1H3/b3-2+
Canonical SMILES
COc1cc(C=Cc2cc(O)cc(O)c2)ccc1O
Isomeric SMILES
COC1=C(C=CC(=C1)/C=C/C2=CC(=CC(=C2)O)O)O

Synonyms

  • 3'-methoxy-resveratrol
  • 5-[(E)-2-(4-hydroxy-3-methoxyphenyl)ethenyl]benzene-1,3-diol
  • 5-((E)-2-(4-hydroxy-3-methoxyphenyl)ethenyl)benzene-1,3-diol
  • Isorhapotogenin
  • (E)-5-(4-hydroxy-3-methoxystyryl)benzene-1,3-diol
  • 3'-Methoxyresveratrol
  • ACon1_000713
  • 5-[2-(4-Hydroxy-3-methoxyphenyl)ethenyl]-1,3-benzenediol
  • 5-[(E)-2-(4-hydroxy-3-methoxy-phenyl)vinyl]benzene-1,3-diol
  • 1,3-Benzenediol, 5-[(1E)-2-(4-hydroxy-3-methoxyphenyl)ethenyl]-
  • 1,3-Benzenediol, 5-[2-(4-hydroxy-3-methoxyphenyl)ethenyl]-
  • ?isorhapontigenin
  • 5-[(1E)-2-(4-Hydroxy-3-methoxyphenyl)ethenyl]-1,3-benzenediol
  • Isorhapotigenin
  • 5-((1E)-2-(4-Hydroxy-3-methoxyphenyl)ethenyl)-1,3-benzenediol
  • (E)-isorhapontigenin
  • Isorhapontigenin (Standard)
  • 5-[(1E)-2-(4-hydroxy-3-methoxyphenyl)ethenyl]benzene-1,3-diol
  • 3,5,4'-trihydroxy-3'-methoxy-trans-stilbene
  • 3,4',5-Trihydroxy-3'-methoxy-trans-stilbene
  • 3,4',5-Stilbenetriol, 3'-methoxy-, (E)-
  • 1,3-Benzenediol, 5-(2-(4-hydroxy-3-methoxyphenyl)ethenyl)-, (E)-

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
258.27 g/molcalc.
Exact mass
258.0892 Dacalc.
LogP (octanol/water)
2.98calc.
Topological polar surface area
69.92 Ųcalc.
Hydrogen bond donors
3calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
3calc.
Heavy atoms
19calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.07calc.
Formal charge
0calc.
Stereocentres
0calc.
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(=Cc1ccccc1)c1ccccc1

C(=Cc1ccccc1)c1ccccc1

2 rings, 14 atoms, the Stilbene ring system.

2,005 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS05: Corrosive
Corrosive
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H315Causes skin irritation.
  • H318Causes serious eye damage.
  • H335May cause respiratory irritation.
Precautionary statements (16)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P317Get medical help.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Isorhapontigenin suppliers

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All 5 suppliers
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Where suppliers are based

5 suppliers in 2 countries

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Isorhapontigenin 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

Roles

  • anti-inflammatory agent
  • antimicrobial agent
  • antineoplastic agent
  • antioxidant
  • antiviral agent
  • cardioprotective agent
  • eukaryotic metabolite
  • hypoglycemic agent
  • metabolite
  • pharmaceutical
  • plant metabolite
  • protective agent

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 Isorhapontigenin is traded under.

HS 2909.50Indicative HS code

Ether-phenols, ether-alcohol-phenols and their halogenated, sulphonated, nitrated or…

World exports in 2024
$284M
+11.9% vs 2023, imports $291M
2019 to 2024
Top exporters
  1. India * partner reported32.9%
  2. Indonesia17.7%
  3. France * partner reported11.2%
Top importers
  1. China20.7%
  2. United States12.0%
  3. Brazil6.8%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Isorhapontigenin?

Isorhapontigenin is a stilbenol that is trans-stilbene in which one of the phenyl groups is substituted by hydroxy groups at positions 3 and 5, while the other phenyl group is substituted by a methoxy group at position 3 and a hydroxy group at position 4.

What is the CAS number of Isorhapontigenin?

The CAS registry number of Isorhapontigenin is 32507-66-7. Other or deprecated CAS numbers: 20767-15-1.

What is the molecular formula and weight of Isorhapontigenin?

The molecular formula of Isorhapontigenin is C15H14O4 and its molar mass is 258.27 g/mol.

What is Isorhapontigenin used for?

Known uses and roles of Isorhapontigenin include anti-inflammatory agent, antimicrobial agent, antineoplastic agent, antioxidant, antiviral agent and 7 more.

Is Isorhapontigenin hazardous?

Isorhapontigenin carries the GHS signal word "Danger". Main hazards: causes skin irritation, causes serious eye damage, may cause respiratory irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Isorhapontigenin?

Isorhapontigenin is usually classified under HS code 290950 (Ether-phenols, ether-alcohol-phenols and their halogenated, sulphonated, nitrated or…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Isorhapontigenin?

CompoundList lists 5 suppliers of Isorhapontigenin in China and United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Isorhapontigenin?

Suppliers quote Isorhapontigenin 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

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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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