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Heterocyclic building blocks

Phenoxodiol

Also known as Idronoxil, 3-(4-Hydroxyphenyl)-2H-chromen-7-ol, 3-(4-Hydroxyphenyl)-2H-1-benzopyran-7-ol

CAS 81267-65-4Formula C15H12O3Molar mass 240.26 g/molEC 663-523-9
GHS signal word: Warning. Pictograms: Harmful or irritant, Hazardous to the environment 5 suppliers listed
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Phenoxodiol chemical structure, C15H12O3, CAS 81267-65-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
81267-65-4
Formula
C15H12O3
Molar mass
240.26 g/mol
EC number
663-523-9
HS code
293299
Category
Heterocyclic building blocks

What is Phenoxodiol?

Plain description, key identifiers and synonyms

Idronoxil is a synthetic flavonoid derivative. Idronoxil activates the mitochondrial caspase system, inhibits X-linked inhibitor of apoptosis (XIAP), and disrupts FLICE inhibitory protein (FLIP) expression, resulting in tumor cell apoptosis. This agent also inhibits DNA topoisomerase II by stabilizing the cleavable complex, thereby preventing DNA replication and resulting in tumor cell death.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
3-(4-hydroxyphenyl)-2H-chromen-7-ol
CAS number
81267-65-4 CAS number cross-checked
EC number
663-523-9
Molecular formula
C15H12O3
UNII
995FT1W541
MDL number
MFCD06636630
InChIKey
ZZUBHVMHNVYXRR-UHFFFAOYSA-N
InChI
InChI=1S/C15H12O3/c16-13-4-1-10(2-5-13)12-7-11-3-6-14(17)8-15(11)18-9-12/h1-8,16-17H,9H2
SMILES (canonical and isomeric)
C1C(=CC2=C(O1)C=C(C=C2)O)C3=CC=C(C=C3)O

Synonyms

  • Idronoxil
  • 3-(4-Hydroxyphenyl)-2H-chromen-7-ol
  • 3-(4-Hydroxyphenyl)-2H-1-benzopyran-7-ol
  • 2H-1-Benzopyran-7-ol, 3-(4-hydroxyphenyl)-
  • Idronoxilo
  • 7-hydroxy-3-hydroxyphenyl-1H-benzopyran
  • idronoxilum
  • 2H-1-benzopyran-7-0,1,3-(4-hydroxyphenyl)
  • Dehydroequol
  • Haginin E
  • Phenoxodiol (Haginin E)
  • 4',7-dihydroxyisoflav-3-ene
  • Idronoxil, Dehydroequol, Haginin E
  • 3-(4-hydroxy-phenyl)-2H-chromen-7-ol
  • NV 06
  • 7,4'-Dihydroxyisoflav-3-ene
  • Idronoxil (USAN/INN)
  • Haganin E
  • Idronoxil compo
  • isoflav-3-ene4',7-diol
  • isoflav-3-ene-4',7-diol
  • 7,4?-Dihydroxyisoflav-3-ene
  • Phenoxodiol, >=98% (HPLC)
  • Nox-66 component idronoxil
  • NV-06?
Show all 27 synonyms
  • Nox66 suppository component idronoxil
  • (+/-)-Cis-3-(4-hydroxyphenyl)-4-(4-methoxyphenyl)-3,4-dihydro-2H-cromen-7-ol

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
240.26 g/molcalc.
Exact mass
240.0786 Dacalc.
LogP (octanol/water)
3.03calc.
Topological polar surface area
49.69 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
1calc.
Heavy atoms
18calc.
Rings
3calc.
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, C1=C(c2ccccc2)COc2ccccc21

C1=C(c2ccccc2)COc2ccccc21

3 rings, 16 atoms, the 3(2H)-Isoflavene ring system.

50 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H302Harmful if swallowed.
  • H400Very toxic to aquatic life.
Precautionary statements (7)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P273Avoid release to the environment.
  • P301 + P317If swallowed: Get medical help.
  • P330Rinse mouth.
  • P391Collect spillage.
  • 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

Phenoxodiol 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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Phenoxodiol 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

  • antineoplastic agent
  • pharmaceutical

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

Frequently asked questions

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

What is Phenoxodiol?

Idronoxil is a synthetic flavonoid derivative. Idronoxil activates the mitochondrial caspase system, inhibits X-linked inhibitor of apoptosis (XIAP), and disrupts FLICE inhibitory protein (FLIP) expression, resulting in tumor cell apoptosis.

What is the CAS number of Phenoxodiol?

The CAS registry number of Phenoxodiol is 81267-65-4.

What is the molecular formula and weight of Phenoxodiol?

The molecular formula of Phenoxodiol is C15H12O3 and its molar mass is 240.26 g/mol.

What is Phenoxodiol used for?

Known uses and roles of Phenoxodiol include building blocks in research and laboratory, screening compounds in research and laboratory, antineoplastic agent and pharmaceutical.

Is Phenoxodiol hazardous?

Phenoxodiol carries the GHS signal word "Warning". Main hazards: harmful if swallowed, very toxic to aquatic life. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Phenoxodiol?

Phenoxodiol 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 Phenoxodiol?

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

What is the price of Phenoxodiol?

Suppliers quote Phenoxodiol 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 Phenoxodiol

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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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