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Rodenticides, nematicides and other pesticides

Flavone

Also known as 2-Phenyl-4H-chromen-4-one, 2-Phenylchromone, 2-Phenyl-4-chromone

CAS 525-82-6Formula C15H10O2Molar mass 222.24 g/molEC 208-383-8
GHS signal word: Warning. Pictograms: Harmful or irritant 90 suppliers listed
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Flavone chemical structure, C15H10O2, CAS 525-82-6
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
525-82-6
Formula
C15H10O2
Molar mass
222.24 g/mol
EC number
208-383-8
HS code
293299
Category
Rodenticides, nematicides and other pesticides

What is Flavone?

Plain description, key identifiers and synonyms

Flavone is the simplest member of the class of flavones that consists of 4H-chromen-4-one bearing a phenyl substituent at position 2. It has a role as a metabolite and a nematicide.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-phenylchromen-4-one
CAS number
525-82-6 CAS number cross-checkedOther or deprecated CAS: 11091-19-3, 54849-74-0
EC number
208-383-8
Molecular formula
C15H10O2
UNII
S2V45N7G3B
MDL number
MFCD00006825
InChIKey
VHBFFQKBGNRLFZ-UHFFFAOYSA-N
InChI
InChI=1S/C15H10O2/c16-13-10-15(11-6-2-1-3-7-11)17-14-9-5-4-8-12(13)14/h1-10H
SMILES (canonical and isomeric)
C1=CC=C(C=C1)C2=CC(=O)C3=CC=CC=C3O2

Synonyms

  • 2-Phenyl-4H-chromen-4-one
  • 2-Phenylchromone
  • 2-Phenyl-4-chromone
  • Asmacoril
  • 2-Phenyl-4H-1-benzopyran-4-one
  • Chromocor
  • Cromaril
  • 2-phenylchromen-4-one
  • Phenylchromone
  • 2-Phenyl-4-benzopyron
  • Cromarile
  • 2-Phenyl-gamma-benzopyrone
  • Flavon
  • 2-Phenylbenzopyran-4-one
  • 2-Phenyl-4H-benzopyran-4-one
  • 2-phenyl-1,4-benzopyrone
  • 4H-1-Benzopyran-4-one, 2-phenyl-
  • 2-Phenylchrome
  • 2-Phenyl-4H-chromen-4-on
  • FLN
  • Flavone (VAN)
  • Flavone, Flavone
  • 4hki
  • 2-phenyl-4H-chromone
  • 2-Phenylchronone
Show all 31 synonyms
  • 5-17-10-00552 (Beilstein Handbook Reference)
  • 2-Phenylbenzo[b]pyran-4-one
  • 2-phenyl-1-benzopyran-4-one
  • 2-Phenyl-4H-chromen-4-one #
  • ACon1_000055
  • ICCB2_000263

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
222.24 g/molcalc.
Exact mass
222.0681 Dacalc.
LogP (octanol/water)
3.46calc.
Topological polar surface area
30.21 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
1calc.
Heavy atoms
17calc.
Rings
3calc.
Aromatic rings
3calc.
Fraction sp3 carbons
0calc.
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, O=c1cc(-c2ccccc2)oc2ccccc12

O=c1cc(-c2ccccc2)oc2ccccc12

3 rings, 17 atoms. This chemical is the scaffold itself.

2,273 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

Hazard statements

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • 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 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • 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.
  • P337 + P317If eye irritation persists: 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

Flavone suppliers

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

All 90 suppliers
30 of 30 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

90 suppliers in 15 countries

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Flavone price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Roles

  • antineoplastic agent
  • metabolite
  • nematicide
  • pesticide
  • pharmaceutical

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Inactive in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Flavone 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 Flavone is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Flavone?

Flavone is the simplest member of the class of flavones that consists of 4H-chromen-4-one bearing a phenyl substituent at position 2. It has a role as a metabolite and a nematicide.

What is the CAS number of Flavone?

The CAS registry number of Flavone is 525-82-6. Other or deprecated CAS numbers: 11091-19-3, 54849-74-0.

What is the molecular formula and weight of Flavone?

The molecular formula of Flavone is C15H10O2 and its molar mass is 222.24 g/mol.

What is Flavone used for?

Known uses and roles of Flavone include nematicides in agriculture and crop protection, antineoplastic agent, metabolite, nematicide, pesticide and 1 more.

Is Flavone hazardous?

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

What is the HS code of Flavone?

Flavone 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 Flavone?

CompoundList lists 90 suppliers of Flavone in United States, China, Germany, United Kingdom and 11 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Flavone?

Suppliers quote Flavone 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 Flavone

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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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