CompoundList
Sign in
Screening compounds

Emodic acid

Also known as 4,5,7-trihydroxy-9,10-dioxoanthracene-2-carboxylic acid, 2-Anthracenecarboxylic acid, 9,10-dihydro-4,5,7-trihydroxy-9,10-dioxo-, 2-Anthracenecarboxylicacid, 9,10-dihydro-4,5,7-trihydroxy-9,10-dioxo-

CAS 478-45-5Formula C15H8O7Molar mass 300.22 g/mol
1 supplier listed
Get quotes See the supplier
Emodic acid chemical structure, C15H8O7, CAS 478-45-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
478-45-5
Formula
C15H8O7
Molar mass
300.22 g/mol
HS code
291899
Category
Screening compounds

What is Emodic acid?

Plain description, key identifiers and synonyms

4,5,7-trihydroxy-9,10-dioxo-2-anthracenecarboxylic acid is a trihydroxyanthraquinone.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
4,5,7-trihydroxy-9,10-dioxoanthracene-2-carboxylic acid
CAS number
478-45-5
Molecular formula
C15H8O7
UNII
EXD4256WVW
InChIKey
ZJXVNNSMRGTDBI-UHFFFAOYSA-N
InChI
InChI=1S/C15H8O7/c16-6-3-8-12(10(18)4-6)14(20)11-7(13(8)19)1-5(15(21)22)2-9(11)17/h1-4,16-18H,(H,21,22)
SMILES (canonical and isomeric)
C1=C(C=C(C2=C1C(=O)C3=C(C2=O)C(=CC(=C3)O)O)O)C(=O)O

Synonyms

  • 4,5,7-trihydroxy-9,10-dioxoanthracene-2-carboxylic acid
  • 2-Anthracenecarboxylic acid, 9,10-dihydro-4,5,7-trihydroxy-9,10-dioxo-
  • 2-Anthracenecarboxylicacid, 9,10-dihydro-4,5,7-trihydroxy-9,10-dioxo-
  • 4,5,7-trihydroxy-9,10-dioxo-2-anthracenecarboxylic acid
  • hydroxyl rhein
  • 6-hydroxylrhein
  • 4,5,7-Trihydroxy-9,10-dioxo-9,10-dihydro-2-anthracenecarboxylic acid
  • DivK1c_006880
  • MEGxm0_000113
  • ACon0_001437
  • ACon1_000410
  • 9,10-Dihydro-4,5,7-trihydroxy-9,10-dioxo-2-anthracenecarboxylic acid
  • Sdccgmls-0066762.p001
  • 4,5,7- trihydroxy-2-carboxyanthraquinone
  • 4,5,7-trihydroxyanthraquinone-2-carboxylic acid
  • 4,5,7-trihydroxy-9,10-diketo-anthracene-2-carboxylic acid
  • 4,5,7-trihydroxy-9,10-dioxo-anthracene-2-carboxylic acid
  • 4,5,7-tris(oxidanyl)-9,10-bis(oxidanylidene)anthracene-2-carboxylic acid

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
300.22 g/molcalc.
Exact mass
300.027 Dacalc.
LogP (octanol/water)
1.28calc.
Topological polar surface area
132.1 Ųcalc.
Hydrogen bond donors
4calc.
Hydrogen bond acceptors
6calc.
Rotatable bonds
1calc.
Heavy atoms
22calc.
Rings
3calc.
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=C1c2ccccc2C(=O)c2ccccc21

O=C1c2ccccc2C(=O)c2ccccc21

3 rings, 16 atoms, the Anthraquinone ring system.

2,059 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.

Emodic acid suppliers

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

See the supplier

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

1 supplier in 1 country

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

Emodic acid 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

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 Emodic acid is traded under.

HS 2918.99Indicative HS code

Carboxylic acids, with additional oxygen function (not alcohol, phenol, aldehyde or ketone)…

World exports in 2024
$1.46B
−1.1% vs 2023, imports $1.54B
2019 to 2024
Top exporters
  1. China40.0%
  2. India * partner reported26.6%
  3. Germany8.0%
Top importers
  1. United States25.6%
  2. Brazil6.7%
  3. Argentina5.9%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Emodic acid, based on the data on this page

What is Emodic acid?

4,5,7-trihydroxy-9,10-dioxo-2-anthracenecarboxylic acid is a trihydroxyanthraquinone.

What is the CAS number of Emodic acid?

The CAS registry number of Emodic acid is 478-45-5.

What is the molecular formula and weight of Emodic acid?

The molecular formula of Emodic acid is C15H8O7 and its molar mass is 300.22 g/mol.

What is Emodic acid used for?

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

Is Emodic acid hazardous?

No GHS hazard classification for Emodic acid 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 Emodic acid?

Emodic acid is usually classified under HS code 291899 (Carboxylic acids with additional oxygen function and their anhydrides, halides…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Emodic acid?

CompoundList lists 1 supplier of Emodic acid in China. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Emodic acid?

Suppliers quote Emodic acid 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 Emodic acid

Get quotes for Emodic acid

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Emodic acid
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 Emodic acid 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/emodic-acid-478-45-5" title="Emodic acid 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 Screening compounds or HS code 291899

1 supplier
Free quotes, contact stays private
Get quotes