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Alkannin

CAS: 517-88-4 | C16H16O5

2D Structure

3D Structure

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Basic Information

CAS Registry Number: 517-88-4
Molecular Formula: C16H16O5
Molecular Mass: 288.30 g/mol

Names and Synonyms:

Alkannin
1,4-Naphthalenedione, 5,8-dihydroxy-2-[(1S)-1-hydroxy-4-methyl-3-penten-1-yl]-
1,4-Naphthoquinone, 5,8-dihydroxy-2-(1-hydroxy-4-methyl-3-pentenyl)-, (-)-
Alkannin
1,4-Naphthalenedione, 5,8-dihydroxy-2-(1-hydroxy-4-methyl-3-pentenyl)-, (S)-
1,4-Naphthalenedione, 5,8-dihydroxy-2-[(1S)-1-hydroxy-4-methyl-3-pentenyl]-
5,8-Dihydroxy-2-[(1S)-1-hydroxy-4-methyl-3-penten-1-yl]-1,4-naphthalenedione
C.I. 75530
Anchusin
C.I. Natural Red 20
Alkanet extract
Anchusa acid
Alkanna red
(-)-Alkannin
NSC 94524

Identifiers:

SMILES:
CC(C)=CC[C@H](O)C1=CC(=O)c2c(O)ccc(O)c2C1=O
InChI:
InChI=1S/C16H16O5/c1-8(2)3-4-10(17)9-7-13(20)14-11(18)5-6-12(19)15(14)16(9)21/h3,5-7,10,17-19H,4H2,1-2H3/t10-/m0/s1

Key Properties

Melting Point
149 °C CAS Common Chemistry

Spectral Data

NMR, IR, and Mass spectral data

1H NMR
13C NMR
Predicting NMR spectra...
10 ppm 9 8 7 6 5 4 3 2 1 0 ppm
Shift (ppm) Multiplicity Integration Assignment
200 ppm 180 160 140 120 100 80 60 40 20 0 ppm
Shift (ppm) DEPT Assignment

Note: These NMR spectra are predicted computationally and may differ from experimental data. Predictions are based on chemical environment analysis.

External Resources

All Properties

Comprehensive physical and chemical properties

Property Value Source
Molecular Mass 288.30 g/mol CAS Common Chemistry
288.29900000000004 g/mol RDKit
288.099773612 g/mol RDKit
Wikipedia Url https://en.wikipedia.org/wiki/Alkannin CAS Common Chemistry
Canonical SMILES O=C1C=C(C(=O)C=2C(O)=CC=C(O)C12)C(O)CC=C(C)C CAS Common Chemistry
InChI InChI=1S/C16H16O5/c1-8(2)3-4-10(17)9-7-13(20)14-11(18)5-6-12(19)15(14)16(9)21/h3,5-7,10,17-19H,4H2,1-2H3/t10-/m0/s1 CAS Common Chemistry
InChI Key InChIKey=NEZONWMXZKDMKF-JTQLQIEISA-N CAS Common Chemistry
Melting Point 149 °C CAS Common Chemistry
Name (-)-Alkannin CAS Common Chemistry
Alkannin CAS Common Chemistry
Heavy Atom Count 21 RDKit
Hydrogen Bond Acceptors 5 RDKit
Hydrogen Bond Donors 3 RDKit
Rotatable Bonds 3 RDKit
Aromatic Ring Count 1 RDKit
Topological Polar Surface Area 94.83000000000001 Ų RDKit
LogP 2.1204000000000005 RDKit
Molar Refractivity 76.5704 RDKit

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