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Heterocyclic building blocks

Neoflavan

Also known as 4-phenylchromane, 3,4-dihydro-4-phenyl-2H-1-benzopyran, 4-Phenylchroman

CAS 21763-04-2Formula C15H14OMolar mass 210.28 g/mol
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Neoflavan chemical structure, C15H14O, CAS 21763-04-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
21763-04-2
Formula
C15H14O
Molar mass
210.28 g/mol
HS code
293299
Category
Heterocyclic building blocks

What is Neoflavan?

Plain description, key identifiers and synonyms

Neoflavan is the simplest member of the class of neoflavans, that is 3,4-dihydro-2H-1-benzopyran substituted by a phenyl group at position 4.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
4-phenyl-3,4-dihydro-2H-chromene
CAS number
21763-04-2 CAS number cross-checked
Molecular formula
C15H14O
InChIKey
PFEQKJXHQOTTKE-UHFFFAOYSA-N
InChI
InChI=1S/C15H14O/c1-2-6-12(7-3-1)13-10-11-16-15-9-5-4-8-14(13)15/h1-9,13H,10-11H2
SMILES (canonical and isomeric)
C1COC2=CC=CC=C2C1C3=CC=CC=C3

Synonyms

  • 4-phenylchromane
  • 3,4-dihydro-4-phenyl-2H-1-benzopyran
  • 4-Phenylchroman
  • 4-phenyl-3,4-dihydro-2H-1-benzopyran
  • 4-phenyl-chroman
  • 4-phenyl-3,4-dihydro-2H-chromene

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
210.28 g/molcalc.
Exact mass
210.1045 Dacalc.
LogP (octanol/water)
3.6calc.
Topological polar surface area
9.23 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
1calc.
Heavy atoms
16calc.
Rings
3calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.2calc.
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, c1ccc(C2CCOc3ccccc32)cc1

c1ccc(C2CCOc3ccccc32)cc1

3 rings, 16 atoms. This chemical is the scaffold itself.

30 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.

Neoflavan suppliers

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Neoflavan price

Indicative price range per kg from live supplier offers

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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

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

Frequently asked questions

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

What is Neoflavan?

Neoflavan is the simplest member of the class of neoflavans, that is 3,4-dihydro-2H-1-benzopyran substituted by a phenyl group at position 4.

What is the CAS number of Neoflavan?

The CAS registry number of Neoflavan is 21763-04-2.

What is the molecular formula and weight of Neoflavan?

The molecular formula of Neoflavan is C15H14O and its molar mass is 210.28 g/mol.

What is Neoflavan used for?

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

Is Neoflavan hazardous?

No GHS hazard classification for Neoflavan 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 Neoflavan?

Neoflavan 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 Neoflavan?

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

What is the price of Neoflavan?

Suppliers quote Neoflavan 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 Neoflavan

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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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