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Aromatic building blocks

Pyrogallin

Also known as 3,4,5-trihydroxybenzo[7]annulen-6-one, 3,4,6-trihydroxy-5H-benzo[a]cyclohepten-5-one, DivK1c_006409

CAS 64782-84-9Formula C11H8O4Molar mass 204.18 g/mol
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Pyrogallin chemical structure, C11H8O4, CAS 64782-84-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
64782-84-9
Formula
C11H8O4
Molar mass
204.18 g/mol
HS code
290729
Category
Aromatic building blocks

What is Pyrogallin?

Plain description, key identifiers and synonyms

Pyrogallin is a cyclic ketone.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
3,4,5-trihydroxybenzo[7]annulen-6-one
CAS number
64782-84-9
Molecular formula
C11H8O4
InChI
InChI=1S/C11H8O4/c12-7-3-1-2-6-4-5-8(13)11(15)9(6)10(7)14/h1-5,13,15H,(H,12,14)
SMILES (canonical and isomeric)
C1=CC(=O)C(=C2C(=C1)C=CC(=C2O)O)O

Synonyms

  • 3,4,5-trihydroxybenzo[7]annulen-6-one
  • 3,4,6-trihydroxy-5H-benzo[a]cyclohepten-5-one
  • DivK1c_006409
  • 6H-Benzocyclohepten-6-one, 3,4,5-trihydroxy-

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
204.18 g/molcalc.
Exact mass
204.0423 Dacalc.
LogP (octanol/water)
1.32calc.
Topological polar surface area
77.76 Ųcalc.
Hydrogen bond donors
3calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
0calc.
Heavy atoms
15calc.
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=c1cccc2ccccc2c1

O=c1cccc2ccccc2c1

2 rings, 12 atoms, the 6H-Benzo[7]annulen-6-one ring system.

8 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.

Pyrogallin suppliers

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Pyrogallin 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

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 Pyrogallin is traded under.

HS 2907.29Indicative HS code

Polyphenols, phenol-alcohols, other

World exports in 2024
$535M
−27.0% vs 2023, imports $565M
2019 to 2024
Top exporters
  1. India * partner reported17.7%
  2. Germany16.5%
  3. Japan15.8%
Top importers
  1. United States13.1%
  2. Japan8.0%
  3. Belgium7.9%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Pyrogallin?

Pyrogallin is a cyclic ketone.

What is the CAS number of Pyrogallin?

The CAS registry number of Pyrogallin is 64782-84-9.

What is the molecular formula and weight of Pyrogallin?

The molecular formula of Pyrogallin is C11H8O4 and its molar mass is 204.18 g/mol.

What is Pyrogallin used for?

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

Is Pyrogallin hazardous?

No GHS hazard classification for Pyrogallin 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 Pyrogallin?

Pyrogallin is usually classified under HS code 290729 (Polyphenols, phenol-alcohols, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Pyrogallin?

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

What is the price of Pyrogallin?

Suppliers quote Pyrogallin 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 Pyrogallin

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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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