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Screening compounds

Cardinal red

Also known as Kermessaure, 6-acetyl-2,5,7,8-tetrahydroxy-4-methyl-9,10-dioxo-9,10-dihydroanthracene-1-carboxylic acid, 6-Acetyl-9,10-dihydro-2,5,7,8-tetrahydroxy-4-methyl-9,10-dioxo-1-anthracenecarboxylic acid

CAS 476-35-7Formula C18H12O9Molar mass 372.29 g/molEC 610-373-7
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Cardinal red chemical structure, C18H12O9, CAS 476-35-7
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
476-35-7
Formula
C18H12O9
Molar mass
372.29 g/mol
EC number
610-373-7
HS code
291899
Category
Screening compounds

What is Cardinal red?

Plain description, key identifiers and synonyms

Cardinal red is a chemical substance with the molecular formula C18H12O9 and a molar mass of 372.29 g/mol. Its CAS registry number is 476-35-7. The IUPAC name is 6-acetyl-2,5,7,8-tetrahydroxy-4-methyl-9,10-dioxoanthracene-1-carboxylic acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
6-acetyl-2,5,7,8-tetrahydroxy-4-methyl-9,10-dioxoanthracene-1-carboxylic acid
CAS number
476-35-7
EC number
610-373-7
Molecular formula
C18H12O9
InChIKey
HQTAGYBATSEXCF-UHFFFAOYSA-N
InChI
InChI=1S/C18H12O9/c1-4-3-6(20)9(18(26)27)10-7(4)13(21)11-12(15(10)23)17(25)16(24)8(5(2)19)14(11)22/h3,20,22,24-25H,1-2H3,(H,26,27)
SMILES (canonical and isomeric)
CC1=CC(=C(C2=C1C(=O)C3=C(C2=O)C(=C(C(=C3O)C(=O)C)O)O)C(=O)O)O

Synonyms

  • Kermessaure
  • 6-acetyl-2,5,7,8-tetrahydroxy-4-methyl-9,10-dioxo-9,10-dihydroanthracene-1-carboxylic acid
  • 6-Acetyl-9,10-dihydro-2,5,7,8-tetrahydroxy-4-methyl-9,10-dioxo-1-anthracenecarboxylic 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
372.29 g/molcalc.
Exact mass
372.0481 Dacalc.
LogP (octanol/water)
1.49calc.
Topological polar surface area
169.4 Ųcalc.
Hydrogen bond donors
5calc.
Hydrogen bond acceptors
8calc.
Rotatable bonds
2calc.
Heavy atoms
27calc.
Rings
3calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.11calc.
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.

Cardinal red suppliers

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

Frequently asked questions

Quick answers about Cardinal red, based on the data on this page

What is Cardinal red?

Cardinal red is a chemical substance with the molecular formula C18H12O9 and a molar mass of 372.29 g/mol. Its CAS registry number is 476-35-7. The IUPAC name is 6-acetyl-2,5,7,8-tetrahydroxy-4-methyl-9,10-dioxoanthracene-1-carboxylic acid.

What is the CAS number of Cardinal red?

The CAS registry number of Cardinal red is 476-35-7.

What is the molecular formula and weight of Cardinal red?

The molecular formula of Cardinal red is C18H12O9 and its molar mass is 372.29 g/mol.

What is Cardinal red used for?

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

Is Cardinal red hazardous?

No GHS hazard classification for Cardinal red 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 Cardinal red?

Cardinal red 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 Cardinal red?

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What is the price of Cardinal red?

Suppliers quote Cardinal red 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 Cardinal red

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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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