For citations & permissions, please see: Citations & Permissions - Wiley Science Solutions*

*Links on SpectraBase are not permalinks.
Rhein
SpectraBase Compound ID LobxxKDPfRv
InChI InChI=1S/C15H8O6/c16-9-3-1-2-7-11(9)14(19)12-8(13(7)18)4-6(15(20)21)5-10(12)17/h1-5,16-17H,(H,20,21)
InChIKey FCDLCPWAQCPTKC-UHFFFAOYSA-N
Mol Weight 284.22 g/mol
Molecular Formula C15H8O6
Exact Mass 284.032088 g/mol
Copyright Copyright © 2023-2025 Wiley-VCH GmbH. All Rights Reserved.
Source of Spectrum H.H.Maurer, M.Meyer, K.Pfleger, A.A. Weber / University of Saarland, D-66424 Homburg Germany
Technique GC/MS
Copyright Copyright © 2020-2025 John Wiley & Sons, Inc. All Rights Reserved.
Source of Spectrum KO-6-375-2
Copyright Copyright © 2020-2025 John Wiley & Sons, Inc. All Rights Reserved.
Source of Spectrum QA-48-1056-13
Copyright Copyright © 1980, 1981-2025 John Wiley & Sons, Inc. All Rights Reserved.
Source of Sample K. Danielsen, D.W. Aksnes and G.W. Francis, University of Bergen, Bergen, Norway Magn. Reson. Chem. 30, 359(1992)
Solvent Dimethyl sulfoxide-d6; Reference=TMS Spectrometer= Bruker AM 400 WB
Copyright Copyright © 1980, 1981-2025 John Wiley & Sons, Inc. All Rights Reserved.
Solvent Dimethyl sulfoxide
Copyright Copyright © 2018-2025 Sigma-Aldrich Co. LLC. - Database Compilation Copyright © 2018-2025 John Wiley & Sons, Inc. All Rights Reserved.
Source of Sample Aldrich
Catalog Number 275611
  • 9,10-Dihydro-4,5-dihydroxy-9,10-dioxo-2-anthroic acid
  • 2-Anthroic acid, 9,10-dihydro-4,5-dihydroxy-9,10-dioxo-
  • 2-Anthracenecarboxylic acid, 9,10-dihydro-4,5-dihydroxy-9,10-dioxo-
  • Rhubarb yellow
  • 4,5-Dihydroxyanthraquinone-2-carboxylic acid
  • 9,10-Dihydro-4,5-dihydroxy-9,10-dioxo-2-anthracene carboxylic acid
  • 4,5-DiOH-anthraquinone-2-COOH
  • Monorhein
  • Rheic acid
  • Cassic acid
  • Chrysazin-3-carboxylic acid
  • 1,8-Dihydroxy-3-carboxyanthraquinone
  • 1,8-Dihydroxy-3-carboxyl anthraquinone
  • 1,8-Dihydroxyanthraquinone-3-carboxylic acid
  • 4,5-Dihydroxy-2-anthraquinonecarboxylic acid
  • 4,5-Dihydroxy-9,10-diketo-anthracene-2-carboxylic acid
  • 4,5-Dihydroxy-9,10-dioxo-2-anthracenecarboxylic acid
  • 4,5-Dihydroxy-9,10-dioxo-anthracene-2-carboxylic acid
  • 9,10-Dihydro-4,5-dihydroxy-9,10-dioxoanthracene-2-carboxylic acid
  • 4,5-Dihydroxy-9,10-dioxo-9,10-dihydro-2-anthracenecarboxylic acid
  • 4,5-Dihydroxy-9,10-dioxo-9,10-dihydroanthracene-2-carboxylic acid
  • 4,5-bis(oxidanyl)-9,10-bis(oxidanylidene)anthracene-2-carboxylic acid
  • CCRIS 5129
  • EINECS 207-521-4
  • NSC 38629
  • BRN 2222155

This compound is available in the following databases:

KnowItAll IR Spectral Library

Author: Wiley

Wiley's KnowItAll IR Spectral Library offers access to the world's largest collection of high-quality infrared spectra, including the renowned Sadtler databases. Learn more.

Sigma-Aldrich Library of ATR-IR Spectra

Author: Sigma Aldrich

The Sigma-Aldrich Library of ATR-IR Spectra is a comprehensive collection of ATR-IR spectra sourced from the laboratories of Sigma-Aldrich by Merck KGaA Darmstadt, Germany. Learn more.

Maurer, Meyer, Pfleger, Weber: GC-MS Library of Drugs, Poisons, and Their Metabolites 6th Edition

Author: Hans H. Maurer, Markus Meyer, Karl Pfleger, Armin A. Weber

Identification of trace drugs, poisons, and pollutants requires broad coverage of specific compound classes: metabolites, acetylated, methylated, trimethylsilylated, trifluoroacetylated, pentafluoropropionylated, and heptafluorobutyrylated compounds. Learn more.

KnowItAll GC-MS Library

Author: Wiley

The KnowItAll Mass Spectral Library offers a comprehensive collection of mass spectra, including the renowned Wiley Registry, and access to a wide range of compounds including pure organics, drugs, steroids, additives, geochemicals, petrochemicals, biomarkers, and more. Learn more.

KnowItAll NMR Spectral Library

Author: Wiley

The KnowItAll NMR Spectral Library offers a comprehensive collection of NMR reference spectra, including NMR, CNMR, and XNMR, and covers a wide range of compounds including organics, polymers, monomers, metabolites, and more. Learn more.

Wiley Registry of Mass Spectral Data 2026

Author: Wiley

The foundation library for any analytical laboratory running mass spectrometry, the Wiley Registry provides the broadest coverage available in any mass spectral library Learn more.

Unknown Identification

Search your unknown spectrum against the world's largest collection of reference spectra

KnowItAll Campus Solutions

KnowItAll offers faculty and students at your school access to all the tools you need for spectral analysis and structure drawing & publishing! Plus, access the world's largest spectral library.