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Structure & Deep Data of Alizarin (C14H8O4)

Identification of Alizarin Chemical Compound

2D chemical structure image of Alizarin
Chemical Formula C14H8O4
Molecular Weight 240.21092 g/mol
IUPAC Name 1,2-dihydroxy-9,10-dihydroanthracene-9,10-dione
SMILES String Oc3ccc2C(=O)c1ccccc1C(=O)c2c3O
InChI InChI=1S/C14H8O4/c15-10-6-5-9-11(14(10)18)13(17)8-4-2-1-3-7(8)12(9)16/h1-6,15,18H
InChIKey RGCKGOZRHPZPFP-UHFFFAOYSA-N

Chemical Structure Description

A chemical structure of a molecule includes the arrangement of atoms and the chemical bonds that hold the atoms together. The Alizarin molecule contains a total of 28 bond(s). There are 20 non-H bond(s), 14 multiple bond(s), 2 double bond(s), 12 aromatic bond(s), 3 six-membered ring(s), 2 ten-membered ring(s), 2 ketone(s) (aromatic), and 2 aromatic hydroxyl(s). Images of the chemical structure of Alizarin are given below:

2D chemical structure image of Alizarin
2-dimensional (2D) chemical structure image of Alizarin
3D chemical structure image of Alizarin
3-dimensional (3D) chemical structure image of Alizarin

The 2D chemical structure image of Alizarin is also called skeletal formula, which is the standard notation for organic molecules. The carbon atoms in the chemical structure of Alizarin are implied to be located at the corner(s) and hydrogen atoms attached to carbon atoms are not indicated – each carbon atom is considered to be associated with enough hydrogen atoms to provide the carbon atom with four bonds.

The 3D chemical structure image of Alizarin is based on the ball-and-stick model which displays both the three-dimensional position of the atoms and the bonds between them. The radius of the spheres is therefore smaller than the rod lengths in order to provide a clearer view of the atoms and bonds throughout the chemical structure model of Alizarin. Download structure data file (SDF/MOL) file of this compound.


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Interactive 3D Visualization

For a better understanding of the chemical structure, an interactive 3D visualization of Alizarin is provided here.

The Alizarin molecule shown in the visualization screen can be rotated interactively by keep clicking and moving the mouse button. Mouse wheel zoom is available as well – the size of the Alizarin molecule can be increased or decreased by scrolling the mouse wheel.

The information of the atoms, bonds, connectivity and coordinates included in the chemical structure of Alizarin can easily be identified by this visualization. By right-clicking the visualization screen, various other options are available including the visualization of van der Waals surface and exporting to an image file.


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  • InChIKey: LFQSCWFLJHTTHZ-UHFFFAOYSA-N

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Additional Information for Identifying Alizarin Molecule

  • SMILES (Simplified Molecular-Input Line-Entry System) string of Alizarin

    The SMILES string of Alizarin is Oc3ccc2C(=O)c1ccccc1C(=O)c2c3O, which can be can be imported by most molecule editors for conversion back into two-dimensional drawings or three-dimensional models of the Alizarin.

  • Structure Data File (SDF/MOL File) of Alizarin

    The structure data file (SDF/MOL File) of Alizarin is available for download in the SDF page of Alizarin, which provides the information about the atoms, bonds, connectivity and coordinates of Alizarin. The Alizarin structure data file can be imported to most of the cheminformatics software systems and applications.

  • Chemical formula of Alizarin

    The molecular formula of Alizarin is available in chemical formula page of Alizarin, which identifies each constituent element by its chemical symbol and indicates the proportionate number of atoms of each element.

  • Molecular weight of Alizarin

    The molecular weight of Alizarin is available in molecular weight page of Alizarin, which is calculated as the sum of the atomic weights of each constituent element multiplied by the number of atoms of that element in the molecular formula.

  • Other names (synonyms) or registry numbers of Alizarin

    The Alizarin compound may be called differently depending on the various different situations of industrial applications. Below are the list of the other names (synonyms) of Alizarin including the various registry numbers, if available:

    • 84754-86-9
    • 1328-02-5
    • 2,9-DIHYDROXY-1,10-DIHYDROANTHRACENE-1,10-DIONE
    • I14-16575
    • SR-05000002485-1
    • C-34292
    • AE-641/00185064
    • A837539
    • EN300-136088
    • D0242
    • 4CH-011256
    • L933
    • 1,2-bis(oxidanyl)anthracene-9,10-dione
    • SDCCGMLS-0066502.P001
    • RTR-023675
    • LN: L C666 BV IVJ EQ FQ1
    • 1,2-Dihydroxyanthra-9,10-quinone #
    • Rubia, alizarin crimson, 72-48-0
    • CCG-38668
    • BDBM50206434
    • ANW-36201
    • HMS3651P05
    • HMS1923C03
    • 60MEW57T9G
    • Alizarin, Dye content 97 %
    • ARONIS27045
    • Mordant red 11, Alizarin e
    • 1322-60-7
    • SPECTRUM210850
    • Epitope ID:116187
    • 9, 1,2-dihydroxy-
    • ATHRAQUINONES A
    • Sanyo Carmine l2BT
    • Alizarin, p.a.
    • 9,10-Anthracenedione, dihydroxy-
    • Turkey ree
    • Pincoffin
    • Hystazarin
    • 140861-55-8
    • CAS-72-48-0
    • W-104489
    • 1,10-Anthracenedione, 2,9-dihydroxy-
    • Az
    • MFCD00001201
    • Alizarin (C.I. 58000)
    • CI 58000
    • 1,2-Dihydroxy anthraquinone
    • DIHYDROXY-9,10-ANTHRACENEDIONE
    • 1,2-Dihydroxyanthrachinon [Czech]
    • Anthraquinone, 1,2-dihydroxy-
    • D and C Orange No. 15
    • 1,2-Dihydroxy-anthraquinone
    • C.I. 58000C
    • alizarin crimson
    • Rubia
    • rose madder
    • crimson madder
    • C.I. 58000
    • Turkey Red (VAN)
    • Alizarine paste 20% bluish
    • Alizarine Paste 20 percent Bluish
    • 9,10-Anthracenedione, 1,2-dihydroxy-
    • Alizarinprimeveroside
    • 1,2-Dihydroxyanthrachinon
    • Deep Crimson Madder 10821E
    • Deep Crimson Madder 10821
    • D and C Orange Number 15D
    • D And C Orange Number 15
    • C.I. Pigment Red 83C
    • C.I. Mordant Red 11C
    • C.I. Pigment Red 83
    • C.I. Mordant Red 11
    • 1,2-Dihydroxyanthra-9,10-quinone
    • Pigment red 83
    • Alizarine Lake Red IPX
    • Alizarine Lake Red 3P
    • Alizarine Lake Red 2P
    • Certiqual Alizarine D
    • Mitsui Alizarine BS
    • Sanyo Carmine L2B
    • 1,2-Dihydroxy-9,10-anthracenedione
    • Mitsui Alizarine B
    • Alizerine Red IPP
    • Alizarine Red IPP
    • Alizarine Red B2
    • Certiqual Alizarine
    • Alizarine indicator
    • Alizarine Red IP
    • 1,2-Dihydroxy-9,10-anthraquinone
    • Turkey Red W
    • Alizarine L paste
    • Eljon Madder M
    • Alizarine 3B
    • Alizarine Red L
    • Alizarine Red B
    • Alizerine NAC
    • Alizarine NAC
    • Eljon Madder
    • Alizarine B
    • Alizarine Red
    • Alizarina
    • ALIZARINE
    • 1,2-Anthraquinonediol
    • Turkey Red
    • Alizarin B
    • 1,2-Dihydroxyanthraquinone
    • Mordant Red 11
    • 1,2-dihydroxyanthracene-9,10-dione
    • Alizarin Red
    • 72-48-0
    • Alizarin

Alizarin Identification Summary Frequently Asked Questions (FAQs)

What’s the chemical formula of Alizarin?
C14H8O4
How many atoms and what are the elements included the Alizarin molecule?
26 atom(s) - 8 Hydrogen atom(s), 14 Carbon atom(s), and 4 Oxygen atom(s)
How many chemical bonds and what kind of bonds are included the Alizarin structure?
28 bond(s) - 20 non-H bond(s), 14 multiple bond(s), 2 double bond(s), 12 aromatic bond(s), 3 six-membered ring(s), 2 ten-membered ring(s), 2 ketone(s) (aromatic), and 2 aromatic hydroxyl(s)
What’s the Alizarin’s molecular weight?
240.21092 g/mol
What’s the SMILES code of Alizarin?
Oc3ccc2C(=O)c1ccccc1C(=O)c2c3O
What’s the InChI string of Alizarin?
InChI=1S/C14H8O4/c15-10-6-5-9-11(14(10)18)13(17)8-4-2-1-3-7(8)12(9)16/h1-6,15,18H
What’s the InChIKey code of Alizarin?
RGCKGOZRHPZPFP-UHFFFAOYSA-N

3478 The contents of this page can freely be shared if cited as follows:
Source: Chemical Compounds Deep Data Source (CCDDS; https://www.molinstincts.com) based on 41 patented QSQN and QN technology
commercialized into Mol-Instincts database and ChemRTP, ChemEssen, Inc (2024).

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