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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2012-09-11 17:52:24 UTC
Update Date2022-03-07 02:53:30 UTC
HMDB IDHMDB0032876
Secondary Accession Numbers
  • HMDB32876
Metabolite Identification
Common NameRhein
DescriptionRhein belongs to the class of organic compounds known as anthracenecarboxylic acids. These are organic compounds containing a carboxylic acid group attached to an anthracene ring system. Thus, rhein is considered to be an aromatic polyketide. Rhein has been detected, but not quantified in, a few different foods, such as docks (Rumex), garden rhubarbs (Rheum rhabarbarum), and green vegetables. This could make rhein a potential biomarker for the consumption of these foods. Based on a literature review a significant number of articles have been published on Rhein.
Structure
Data?1563862320
Synonyms
ValueSource
1,8-Dihydroxy-3-carboxyl anthraquinoneHMDB
1,8-Dihydroxy-3-carboxyl-9,10-anthraquinoneHMDB, MeSH
1,8-Dihydroxyanthraquinone-3-carboxylic acidHMDB
4, 5-Dihydroxyanthraquinone-2-carboxylic acidHMDB
4,5-Dihydroxy-2-anthraquinonecarboxylic acidHMDB
4,5-DiOH-anthraquinone-2-COOHHMDB
9,10-dihydro-4,5-Dihydroxy-9,10-dioxo-2-anthracenecarboxylic acid, 9ciHMDB
9,10-dihydro-4,5-Dihydroxy-9,10-dioxo-2-anthroic acidHMDB
Cassic acidHMDB
Chrysazin-3-carboxylic acidHMDB
Dipropionyl rheinHMDB, MeSH
MonorheinHMDB
Rhein (1,8-dihydroxy-3-carboxyl anthraquinone)HMDB
Rhubarb yellowHMDB
4,5-Dihydroxyanthraquinone-2-carboxylic acidMeSH, HMDB
Chemical FormulaC15H8O6
Average Molecular Weight284.2204
Monoisotopic Molecular Weight284.032087988
IUPAC Name4,5-dihydroxy-9,10-dioxo-9,10-dihydroanthracene-2-carboxylic acid
Traditional Namemonorhein
CAS Registry Number478-43-3
SMILES
OC(=O)C1=CC2=C(C(O)=C1)C(=O)C1=C(C=CC=C1O)C2=O
InChI Identifier
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)
InChI KeyFCDLCPWAQCPTKC-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as anthracenecarboxylic acids. These are organic compounds containing a carboxylic acid group attached to an anthracene ring system.
KingdomOrganic compounds
Super ClassBenzenoids
ClassAnthracenes
Sub ClassAnthracenecarboxylic acids and derivatives
Direct ParentAnthracenecarboxylic acids
Alternative Parents
Substituents
  • Anthracene carboxylic acid
  • 9,10-anthraquinone
  • Anthraquinone
  • 2-naphthalenecarboxylic acid
  • 2-naphthalenecarboxylic acid or derivatives
  • Hydroxybenzoic acid
  • Aryl ketone
  • 1-hydroxy-4-unsubstituted benzenoid
  • 1-hydroxy-2-unsubstituted benzenoid
  • Vinylogous acid
  • Ketone
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Carboxylic acid derivative
  • Organic oxygen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Organooxygen compound
  • Aromatic homopolycyclic compound
Molecular FrameworkAromatic homopolycyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
Role
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting Point321 °CNot Available
Boiling Point597.00 to 598.00 °C. @ 760.00 mm Hg (est)The Good Scents Company Information System
Water Solubility2.45 mg/L @ 25 °C (est)The Good Scents Company Information System
LogP4.290 (est)The Good Scents Company Information System
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility0.21 g/LALOGPS
logP2.18ALOGPS
logP3.27ChemAxon
logS-3.1ALOGPS
pKa (Strongest Acidic)3.4ChemAxon
pKa (Strongest Basic)-4.4ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count6ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area111.9 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity72.37 m³·mol⁻¹ChemAxon
Polarizability26.62 ųChemAxon
Number of Rings3ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DarkChem[M+H]+163.89531661259
DarkChem[M-H]-165.30731661259
DeepCCS[M+H]+160.89230932474
DeepCCS[M-H]-158.53430932474
DeepCCS[M-2H]-192.20630932474
DeepCCS[M+Na]+167.43330932474
AllCCS[M+H]+162.532859911
AllCCS[M+H-H2O]+158.932859911
AllCCS[M+NH4]+165.932859911
AllCCS[M+Na]+166.932859911
AllCCS[M-H]-162.432859911
AllCCS[M+Na-2H]-161.632859911
AllCCS[M+HCOO]-160.832859911

Predicted Retention Times

Underivatized

Chromatographic MethodRetention TimeReference
Measured using a Waters Acquity ultraperformance liquid chromatography (UPLC) ethylene-bridged hybrid (BEH) C18 column (100 mm × 2.1 mm; 1.7 μmparticle diameter). Predicted by Afia on May 17, 2022. Predicted by Afia on May 17, 2022.5.74 minutes32390414
Predicted by Siyang on May 30, 202211.5351 minutes33406817
Predicted by Siyang using ReTip algorithm on June 8, 20222.43 minutes32390414
AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid38.1 seconds40023050
Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid2424.4 seconds40023050
Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid312.7 seconds40023050
Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid114.1 seconds40023050
Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid187.7 seconds40023050
RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid142.3 seconds40023050
Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid500.2 seconds40023050
BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid662.4 seconds40023050
HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate)85.6 seconds40023050
UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid863.6 seconds40023050
BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid374.4 seconds40023050
UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid1421.2 seconds40023050
SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid374.0 seconds40023050
RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid412.7 seconds40023050
MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate500.5 seconds40023050
KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA187.0 seconds40023050
Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water214.2 seconds40023050

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
RheinOC(=O)C1=CC2=C(C(O)=C1)C(=O)C1=C(C=CC=C1O)C2=O4047.2Standard polar33892256
RheinOC(=O)C1=CC2=C(C(O)=C1)C(=O)C1=C(C=CC=C1O)C2=O2123.4Standard non polar33892256
RheinOC(=O)C1=CC2=C(C(O)=C1)C(=O)C1=C(C=CC=C1O)C2=O2626.3Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Rhein,1TMS,isomer #1C[Si](C)(C)OC(=O)C1=CC(O)=C2C(=O)C3=C(O)C=CC=C3C(=O)C2=C12825.6Semi standard non polar33892256
Rhein,1TMS,isomer #2C[Si](C)(C)OC1=CC(C(=O)O)=CC2=C1C(=O)C1=C(O)C=CC=C1C2=O2773.3Semi standard non polar33892256
Rhein,1TMS,isomer #3C[Si](C)(C)OC1=CC=CC2=C1C(=O)C1=C(O)C=C(C(=O)O)C=C1C2=O2782.1Semi standard non polar33892256
Rhein,2TMS,isomer #1C[Si](C)(C)OC(=O)C1=CC(O[Si](C)(C)C)=C2C(=O)C3=C(O)C=CC=C3C(=O)C2=C12799.8Semi standard non polar33892256
Rhein,2TMS,isomer #2C[Si](C)(C)OC(=O)C1=CC(O)=C2C(=O)C3=C(O[Si](C)(C)C)C=CC=C3C(=O)C2=C12824.2Semi standard non polar33892256
Rhein,2TMS,isomer #3C[Si](C)(C)OC1=CC=CC2=C1C(=O)C1=C(O[Si](C)(C)C)C=C(C(=O)O)C=C1C2=O2806.1Semi standard non polar33892256
Rhein,3TMS,isomer #1C[Si](C)(C)OC(=O)C1=CC(O[Si](C)(C)C)=C2C(=O)C3=C(O[Si](C)(C)C)C=CC=C3C(=O)C2=C12854.9Semi standard non polar33892256
Rhein,1TBDMS,isomer #1CC(C)(C)[Si](C)(C)OC(=O)C1=CC(O)=C2C(=O)C3=C(O)C=CC=C3C(=O)C2=C13092.4Semi standard non polar33892256
Rhein,1TBDMS,isomer #2CC(C)(C)[Si](C)(C)OC1=CC(C(=O)O)=CC2=C1C(=O)C1=C(O)C=CC=C1C2=O3017.5Semi standard non polar33892256
Rhein,1TBDMS,isomer #3CC(C)(C)[Si](C)(C)OC1=CC=CC2=C1C(=O)C1=C(O)C=C(C(=O)O)C=C1C2=O3028.0Semi standard non polar33892256
Rhein,2TBDMS,isomer #1CC(C)(C)[Si](C)(C)OC(=O)C1=CC(O[Si](C)(C)C(C)(C)C)=C2C(=O)C3=C(O)C=CC=C3C(=O)C2=C13281.1Semi standard non polar33892256
Rhein,2TBDMS,isomer #2CC(C)(C)[Si](C)(C)OC(=O)C1=CC(O)=C2C(=O)C3=C(O[Si](C)(C)C(C)(C)C)C=CC=C3C(=O)C2=C13328.8Semi standard non polar33892256
Rhein,2TBDMS,isomer #3CC(C)(C)[Si](C)(C)OC1=CC=CC2=C1C(=O)C1=C(O[Si](C)(C)C(C)(C)C)C=C(C(=O)O)C=C1C2=O3316.1Semi standard non polar33892256
Rhein,3TBDMS,isomer #1CC(C)(C)[Si](C)(C)OC(=O)C1=CC(O[Si](C)(C)C(C)(C)C)=C2C(=O)C3=C(O[Si](C)(C)C(C)(C)C)C=CC=C3C(=O)C2=C13544.1Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Rhein GC-MS (Non-derivatized) - 70eV, Positivesplash10-07cv-0590000000-afcf37d77e69652177f22017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Rhein GC-MS (3 TMS) - 70eV, Positivesplash10-024r-4102900000-c5b546456fd0d7644f8a2017-10-06Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Rhein GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental LC-MS/MSLC-MS/MS Spectrum - Rhein LC-ESI-QQ , negative-QTOFsplash10-001i-0090000000-9ac3e7791e49a21d3f7e2017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Rhein LC-ESI-QQ , negative-QTOFsplash10-000i-0090000000-8a0c3c4f77482fc056262017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Rhein LC-ESI-QQ , negative-QTOFsplash10-000i-0190000000-a217257577bda56ddeb92017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Rhein LC-ESI-QQ , negative-QTOFsplash10-001i-0950000000-f5cac5a3a6c78fc4ed852017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Rhein LC-ESI-QQ , negative-QTOFsplash10-001i-0910000000-4671892dc0bcf7214bc02017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Rhein LC-ESI-QTOF , negative-QTOFsplash10-000i-0090000000-5f27d9cb7d81c2b3da8d2017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Rhein LC-ESI-QTOF , negative-QTOFsplash10-000i-0190000000-87c468c6073faf9e5fae2017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Rhein LC-ESI-QTOF , negative-QTOFsplash10-001i-0920000000-0b0038f124d8c14941172017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Rhein LC-ESI-QTOF , positive-QTOFsplash10-000i-0090000000-a2294fd7666d75dbcbd02017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Rhein , positive-QTOFsplash10-052u-0890000000-5f1951e9414e26b22db92017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Rhein 40V, Negative-QTOFsplash10-001i-0920000000-5757933ef5a7532b4ef12021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Rhein 10V, Positive-QTOFsplash10-000i-0090000000-a2294fd7666d75dbcbd02021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Rhein 20V, Positive-QTOFsplash10-000l-0090000000-a2178fdd7c56081cab092021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Rhein 10V, Positive-QTOFsplash10-000i-0090000000-8f070d596b12739e117e2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Rhein 40V, Positive-QTOFsplash10-0ac0-0910000000-a9cb6e465076d6963a822021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Rhein 10V, Negative-QTOFsplash10-000i-0090000000-2c3cbe9c71ab4af87a662021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Rhein 20V, Negative-QTOFsplash10-000i-0290000000-66c888a0ecf96ae01c8c2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Rhein 40V, Negative-QTOFsplash10-001i-0920000000-eb6d2ee2a66f5ba2d5902021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Rhein 10V, Negative-QTOFsplash10-000i-0090000000-467e222d330c2d39d5b12021-09-20HMDB team, MONAView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Rhein 10V, Positive-QTOFsplash10-00kr-0090000000-6163d091b67836bcff632015-04-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Rhein 20V, Positive-QTOFsplash10-014r-0190000000-bd5d0494f66cd7d5828c2015-04-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Rhein 40V, Positive-QTOFsplash10-00rl-2290000000-33f58cc10ba47d1b818a2015-04-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Rhein 10V, Negative-QTOFsplash10-001i-0090000000-05c98e64e03e092b39752015-04-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Rhein 20V, Negative-QTOFsplash10-0019-0090000000-ec4cf61d964a405275212015-04-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Rhein 40V, Negative-QTOFsplash10-00ku-4390000000-5d5e000d8c2e171dd3092015-04-25Wishart LabView Spectrum
Biological Properties
Cellular Locations
  • Cytoplasm
  • Extracellular
Biospecimen LocationsNot Available
Tissue LocationsNot Available
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDDB13174
Phenol Explorer Compound IDNot Available
FooDB IDFDB010856
KNApSAcK IDC00002861
Chemspider ID9762
KEGG Compound IDC10401
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkRhein
METLIN IDNot Available
PubChem Compound10168
PDB IDRHN
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDrw1280361
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Didry N, Dubreuil L, Pinkas M: Activity of anthraquinonic and naphthoquinonic compounds on oral bacteria. Pharmazie. 1994 Sep;49(9):681-3. [PubMed:7972313 ]
  2. Stermitz FR, Cashman KK, Halligan KM, Morel C, Tegos GP, Lewis K: Polyacylated neohesperidosides from Geranium caespitosum: bacterial multidrug resistance pump inhibitors. Bioorg Med Chem Lett. 2003 Jun 2;13(11):1915-8. [PubMed:12749897 ]
  3. Izzo AA, Mascolo N, Capasso F: Effect of sodium rhein on electrically-evoked and agonist-induced contractions of the guinea-pig isolated ileal circular muscle. Br J Pharmacol. 1998 Jun;124(4):825-31. [PubMed:9690877 ]
  4. Kuo PL, Hsu YL, Ng LT, Lin CC: Rhein inhibits the growth and induces the apoptosis of Hep G2 cells. Planta Med. 2004 Jan;70(1):12-6. [PubMed:14765286 ]
  5. Chang CY, Chan HL, Lin HY, Way TD, Kao MC, Song MZ, Lin YJ, Lin CW: Rhein induces apoptosis in human breast cancer cells. Evid Based Complement Alternat Med. 2012;2012:952504. doi: 10.1155/2012/952504. Epub 2011 Oct 5. [PubMed:22007260 ]
  6. (). Yannai, Shmuel. (2004) Dictionary of food compounds with CD-ROM: Additives, flavors, and ingredients. Boca Raton: Chapman & Hall/CRC.. .