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Flavonoids and polyphenols

Punctatin

Also known as (3E)-5,7-dihydroxy-3-[(4-hydroxyphenyl)methylene]-8-methoxy-chroman-4-one, (3E)-2,3-Dihydro-5,7-dihydroxy-3-[(4-hydroxyphenyl)methylene]-8-methoxy-4H-1-benzopyran-4-one

CAS 34818-82-1Formula C17H14O6Molar mass 314.29 g/mol
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Punctatin chemical structure, C17H14O6, CAS 34818-82-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
34818-82-1
Formula
C17H14O6
Molar mass
314.29 g/mol
HS code
293299
Category
Flavonoids and polyphenols

What is Punctatin?

Plain description, key identifiers and synonyms

(3E)-5,7-dihydroxy-3-[(4-hydroxyphenyl)methylene]-8-methoxy-chroman-4-one has been reported in Scilla luciliae.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(3E)-5,7-dihydroxy-3-[(4-hydroxyphenyl)methylidene]-8-methoxychromen-4-one
CAS number
34818-82-1
Molecular formula
C17H14O6
InChIKey
XUSPHMFWFNGRPP-UXBLZVDNSA-N
InChI
InChI=1S/C17H14O6/c1-22-16-13(20)7-12(19)14-15(21)10(8-23-17(14)16)6-9-2-4-11(18)5-3-9/h2-7,18-20H,8H2,1H3/b10-6+
Canonical SMILES
COc1c(O)cc(O)c2c1OCC(=Cc1ccc(O)cc1)C2=O
Isomeric SMILES
COC1=C(C=C(C2=C1OC/C(=C\C3=CC=C(C=C3)O)/C2=O)O)O

Synonyms

  • (3E)-5,7-dihydroxy-3-[(4-hydroxyphenyl)methylene]-8-methoxy-chroman-4-one
  • (3E)-2,3-Dihydro-5,7-dihydroxy-3-[(4-hydroxyphenyl)methylene]-8-methoxy-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
314.29 g/molcalc.
Exact mass
314.079 Dacalc.
LogP (octanol/water)
2.47calc.
Topological polar surface area
96.22 Ųcalc.
Hydrogen bond donors
3calc.
Hydrogen bond acceptors
6calc.
Rotatable bonds
2calc.
Heavy atoms
23calc.
Rings
3calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.12calc.
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=C1C(=Cc2ccccc2)COc2ccccc21

O=C1C(=Cc2ccccc2)COc2ccccc21

3 rings, 18 atoms, the 3-Benzylidenechromen-4-one ring system.

71 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.

Punctatin suppliers

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Punctatin 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

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

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

Frequently asked questions

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

What is Punctatin?

(3E)-5,7-dihydroxy-3-[(4-hydroxyphenyl)methylene]-8-methoxy-chroman-4-one has been reported in Scilla luciliae.

What is the CAS number of Punctatin?

The CAS registry number of Punctatin is 34818-82-1.

What is the molecular formula and weight of Punctatin?

The molecular formula of Punctatin is C17H14O6 and its molar mass is 314.29 g/mol.

Is Punctatin hazardous?

No GHS hazard classification for Punctatin 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 Punctatin?

Punctatin 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 Punctatin?

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What is the price of Punctatin?

Suppliers quote Punctatin 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 Punctatin

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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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