CompoundList
Sign in
Impurities and reference standards

Flavanone

Also known as 2,3-Dihydroflavone, 4-Flavanone, 2-Phenyl-4-chromanone

CAS 487-26-3Formula C15H12O2Molar mass 224.26 g/molEC 207-654-8
GHS signal word: Warning. Pictograms: Harmful or irritant 56 suppliers listed
Get quotes Compare 56 suppliers
Flavanone chemical structure, C15H12O2, CAS 487-26-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
487-26-3
Formula
C15H12O2
Molar mass
224.26 g/mol
EC number
207-654-8
HS code
293299
Category
Impurities and reference standards

What is Flavanone?

Plain description, key identifiers and synonyms

Flavanone is the simplest member of the class of flavanones that consists of flavan bearing an oxo substituent at position 4. It derives from a hydride of a flavan.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-phenyl-2,3-dihydrochromen-4-one
CAS number
487-26-3 CAS number cross-checked
EC number
207-654-8
Molecular formula
C15H12O2
UNII
WX22P730FB
MDL number
MFCD00006841
InChIKey
ZONYXWQDUYMKFB-UHFFFAOYSA-N
InChI
InChI=1S/C15H12O2/c16-13-10-15(11-6-2-1-3-7-11)17-14-9-5-4-8-12(13)14/h1-9,15H,10H2
SMILES (canonical and isomeric)
C1C(OC2=CC=CC=C2C1=O)C3=CC=CC=C3

Synonyms

  • 2,3-Dihydroflavone
  • 4-Flavanone
  • 2-Phenyl-4-chromanone
  • 2,3-Dihydro-2-phenyl-4H-1-benzopyran-4-one
  • 4H-1-Benzopyran-4-one, 2,3-dihydro-2-phenyl-
  • 2-phenyl-2,3-dihydrochromen-4-one
  • (+-)-flavanone
  • 2-Phenylchroman-4-one
  • 2,3-Dihydro-2-phenyl-4H-benzopyran-4-one
  • Propafenone EP Impurity H
  • 2-phenyl-3,4-dihydro-2H-1-benzopyran-4-one
  • 2-Phenyl-2,3-dihydro-4H-chromen-4-one
  • Flavonoid
  • 2-Phenylchromanone
  • 2-Phenyl-chroman-4-one
  • (2RS)-2-Phenyl-2,3-dihydro-4H-1-benzopyran-4-one
  • Propafenone IMpurity H (EP/BP/USP)
  • flavan-4-one
  • Flavanone, 98%
  • (+/-)-flavanone
  • 2-phenyl-2
  • DL-Flavanone
  • Flavone, 2,3-dihydro-
  • (2R)-2-phenyl-3,4-dihydro-2H-1-benzopyran-4-one
  • 5-17-10-00480 (Beilstein Handbook Reference)
Show all 32 synonyms
  • DivK1c_006820
  • Flavanone, (+/-)-
  • ACon1_002246
  • Zonyxwqduymkfb-uhfffaoysa-
  • 2-Phenyl-2,3-dihydro-4H-chromen-4-one #
  • 4H-1-Benzopyran-4-one,3-dihydro-2-phenyl-
  • 2-Phenyl-2,3-dihydro-4H-1-benzopyran-4-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
224.26 g/molcalc.
Exact mass
224.0837 Dacalc.
LogP (octanol/water)
3.39calc.
Topological polar surface area
26.3 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
1calc.
Heavy atoms
17calc.
Rings
3calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.13calc.
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=C1CC(c2ccccc2)Oc2ccccc21

O=C1CC(c2ccccc2)Oc2ccccc21

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

742 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

  • H302Harmful if swallowed.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (19)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • 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).
  • P330Rinse mouth.
  • 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

Flavanone suppliers

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

All 56 suppliers
30 of 30 offers
  • 001Chemical
    China, HangzhouUnclaimed profile
    FlavanoneGrade, purity and minimum order on request
    Price on request
    View
  • 3WAY Pharm Inc
    China, ShanghaiUnclaimed profile
    FlavanoneGrade, purity and minimum order on request
    Price on request
    View
  • Aaron Chemicals LLC.
    China, NanjingUnclaimed profile
    FlavanoneGrade, purity and minimum order on request
    Price on request
    View
  • ABCR GmbH & CO. KG
    GermanyUnclaimed profile
    FlavanoneGrade, purity and minimum order on request
    Price on request
    View
  • Accel Scientific S.L.
    Spain, BarcelonaUnclaimed profile
    FlavanoneGrade, purity and minimum order on request
    Price on request
    View
  • Accela ChemBio Inc.
    United States, San DiegoUnclaimed profile
    FlavanoneGrade, purity and minimum order on request
    Price on request
    View
  • Acmec Biochemical
    China, ShanghaiUnclaimed profile
    FlavanoneGrade, purity and minimum order on request
    Price on request
    View
  • ACTIVATE SCIENTIFIC GmbH
    GermanyUnclaimed profile
    FlavanoneGrade, purity and minimum order on request
    Price on request
    View
  • AiFChem
    United States, SomervilleUnclaimed profile
    FlavanoneGrade, purity and minimum order on request
    Price on request
    View
  • Ambeed, Inc.
    United States, Buffalo GroveUnclaimed profile
    FlavanoneGrade, purity and minimum order on request
    Price on request
    View

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

56 suppliers in 12 countries

Send one request to many suppliers

Choose up to 10 suppliers or let us match your request. Compare quotes side by side, free.

Choose suppliersPost a request

Flavanone 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.

Get latest price

Uses and applications

What the substance is used for, by industry and function

Pharmacology

Flavonoid is one of a number of chemical compounds found in certain fruits, vegetables and seeds with antioxidant properties and potential antineoplastic properties. As polyphenolic, soluble plant pigments, flavonoids are usually subdivided into 5 subgroups flavonols, flavones, flavonones, flavan-3-ols, anthocyanidins. Although not considered essential nutrients, some flavonoids may be beneficial to health by strengthening and protecting blood vessels and connective tissue and acting as anti-inflammatory, antihistaminic, and antiviral agents. As antioxidants, some flavonoids may protect lipids from oxidative damage or retard the formation of cataracts. (NCI04)

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

Frequently asked questions

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

What is Flavanone?

Flavanone is the simplest member of the class of flavanones that consists of flavan bearing an oxo substituent at position 4. It derives from a hydride of a flavan.

What is the CAS number of Flavanone?

The CAS registry number of Flavanone is 487-26-3.

What is the molecular formula and weight of Flavanone?

The molecular formula of Flavanone is C15H12O2 and its molar mass is 224.26 g/mol.

Is Flavanone hazardous?

Flavanone carries the GHS signal word "Warning". Main hazards: harmful if swallowed, causes skin irritation, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Flavanone?

Flavanone 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 Flavanone?

CompoundList lists 56 suppliers of Flavanone in China, United States, United Kingdom, Hong Kong and 8 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Flavanone in India?

1 supplier in India list Flavanone on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Flavanone?

Suppliers quote Flavanone 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 Flavanone

Get quotes for Flavanone

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Flavanone
Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
Embed this structure on your websiteShow code

Paste this code into your page to show the 2D structure of Flavanone with a 3D view, its CAS number and a link back to this page. Free to use with the link kept.

<iframe src="https://www.compoundlist.com/embed/structure/flavanone-487-26-3" title="Flavanone structure on CompoundList" width="360" height="420" style="border:1px solid #E7E2DA;border-radius:12px;max-width:100%" loading="lazy" referrerpolicy="strict-origin-when-cross-origin"></iframe>
Preview the embed

Explore more in Impurities and reference standards or HS code 293299

56 suppliers
Free quotes, contact stays private
Get quotes