CompoundList
Sign in
Heterocyclic compounds

Hispidin

Also known as 6-(3,4-Dihydroxystyryl)-4-hydroxy-2-pyrone, 6-[(E)-2-(3,4-dihydroxyphenyl)ethenyl]-4-hydroxypyran-2-one, 6-[(E)-2-(3,4-dihydroxyphenyl)ethenyl]-4-hydroxy-2H-pyran-2-one

CAS 555-55-5Formula C13H10O5Molar mass 246.22 g/mol
Get quotes Safety data
Hispidin chemical structure, C13H10O5, CAS 555-55-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
555-55-5
Formula
C13H10O5
Molar mass
246.22 g/mol
HS code
293220
Category
Heterocyclic compounds

What is Hispidin?

Plain description, key identifiers and synonyms

Hispidin is fungal metabolite first found in basidiomycete Inonotus hispidus (formerly Polyporus hispidus). It has a role as an antioxidant, an EC 2.7.11.13 (protein kinase C) inhibitor and a fungal metabolite. It is a member of catechols and a member of 2-pyranones. It is a conjugate acid of a hispidin(1-).

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
6-[(E)-2-(3,4-dihydroxyphenyl)ethenyl]-4-hydroxypyran-2-one
CAS number
555-55-5 CAS number cross-checked
Molecular formula
C13H10O5
UNII
SSJ18CG55E
MDL number
MFCD22199534
InChIKey
SGJNQVTUYXCBKH-HNQUOIGGSA-N
InChI
InChI=1S/C13H10O5/c14-9-6-10(18-13(17)7-9)3-1-8-2-4-11(15)12(16)5-8/h1-7,14-16H/b3-1+
Canonical SMILES
O=c1cc(O)cc(C=Cc2ccc(O)c(O)c2)o1
Isomeric SMILES
C1=CC(=C(C=C1/C=C/C2=CC(=CC(=O)O2)O)O)O

Synonyms

  • 6-(3,4-Dihydroxystyryl)-4-hydroxy-2-pyrone
  • 6-[(E)-2-(3,4-dihydroxyphenyl)ethenyl]-4-hydroxypyran-2-one
  • 6-[(E)-2-(3,4-dihydroxyphenyl)ethenyl]-4-hydroxy-2H-pyran-2-one
  • 6-((E)-2-(3,4-dihydroxyphenyl)ethenyl)-4-hydroxypyran-2-one
  • 6-((E)-2-(3,4-Dihydroxyphenyl)ethenyl)-4-hydroxy-2H-pyran-2-one
  • Isohispidine
  • Hispidine
  • (E)-6-(3,4-dihydroxystyryl)-4-hydroxy-2H-pyran-2-one
  • 6-[(E)-2-(3,4-dihydroxyphenyl)vinyl]-4-hydroxy-2H-pyran-2-one
  • 6-(3,4-dihydroxystyrl)-4-hydroxy-2-pyrone
  • Hispidin, solid, >=98% (HPLC)
  • 2-[(E)-2-(3,4-dihydroxyphenyl)ethenyl]-6-hydroxypyran-4-one
  • 2-[(E)-2-(3,4-dihydroxyphenyl)vinyl]-6-hydroxy-pyran-4-one
  • 6-[(E)-2-(3,4-dihydroxyphenyl)vinyl]-4-hydroxy-pyran-2-one
  • 2-((E)-2-(3,4-Dihydroxyphenyl)ethenyl)-6-hydroxypyran-4-one
  • 2-[(E)-2-(3,4-dihydroxyphenyl)ethenyl]-6-hydroxy-4-pyranone
  • 2-[(1E)-2-(3,4-dihydroxyphenyl)ethenyl]-6-hydroxy-4H-pyran-4-one
  • HSCI1_000157
  • Sdccgsbi-0050615.p002
  • 2H-Pyran-2-one, 6-[(E)-2-(3,4-dihydroxyphenyl)ethenyl]-4-hydroxy-

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
246.22 g/molcalc.
Exact mass
246.0528 Dacalc.
LogP (octanol/water)
1.93calc.
Topological polar surface area
90.9 Ųcalc.
Hydrogen bond donors
3calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
2calc.
Heavy atoms
18calc.
Rings
2calc.
Aromatic rings
2calc.
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=c1cccc(C=Cc2ccccc2)o1

O=c1cccc(C=Cc2ccccc2)o1

2 rings, 15 atoms.

20 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.

Hispidin suppliers

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

No supplier listings yet

Post one free request and suppliers who make or trade Hispidin can send you quotes. Your contact details stay private until you accept a quote.

Request quotesSell this chemical

Hispidin 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

Roles

  • antioxidant
  • enzyme inhibitor
  • eukaryotic metabolite
  • fungal metabolite
  • metabolite
  • protein kinase inhibitor

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 Hispidin is traded under.

HS 2932.20Indicative HS code

Lactones

World exports in 2024
$1.97B
−4.7% vs 2023, imports $2.07B
2019 to 2024
Top exporters
  1. China56.3%
  2. India * partner reported7.4%
  3. Germany7.3%
Top importers
  1. United States14.2%
  2. India * partner reported13.5%
  3. Brazil8.5%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Hispidin is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Hispidin?

Hispidin is fungal metabolite first found in basidiomycete Inonotus hispidus (formerly Polyporus hispidus). It has a role as an antioxidant, an EC 2.7.11.13 (protein kinase C) inhibitor and a fungal metabolite. It is a member of catechols and a member of 2-pyranones. It is a conjugate acid of a hispidin(1-).

What is the CAS number of Hispidin?

The CAS registry number of Hispidin is 555-55-5.

What is the molecular formula and weight of Hispidin?

The molecular formula of Hispidin is C13H10O5 and its molar mass is 246.22 g/mol.

What is Hispidin used for?

Known uses and roles of Hispidin include antioxidant, enzyme inhibitor, eukaryotic metabolite, fungal metabolite, metabolite and 1 more.

Is Hispidin hazardous?

No GHS hazard classification for Hispidin 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 Hispidin?

Hispidin is usually classified under HS code 293220 (Lactones). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Hispidin?

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

What is the price of Hispidin?

Suppliers quote Hispidin 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 Hispidin

Get quotes for Hispidin

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Hispidin
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 Hispidin with a 3D view, its CAS number where known and a link back to this page. Free to use with the link kept.

<iframe src="https://www.compoundlist.com/embed/structure/hispidin-555-55-5" title="Hispidin 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 Heterocyclic compounds or HS code 293220

Price on request
Free quotes, contact stays private
Get quotes