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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2012-09-11 17:46:34 UTC
Update Date2022-03-07 02:53:10 UTC
HMDB IDHMDB0031927
Secondary Accession Numbers
  • HMDB31927
Metabolite Identification
Common NameGlyurallin B
DescriptionGlyurallin B belongs to the class of organic compounds known as isoflavones. These are polycyclic compounds containing a 2-isoflavene skeleton which bears a ketone group at the C4 carbon atom. Based on a literature review a significant number of articles have been published on Glyurallin B.
Structure
Data?1563862192
SynonymsNot Available
Chemical FormulaC25H26O6
Average Molecular Weight422.4703
Monoisotopic Molecular Weight422.172938564
IUPAC Name3-[3,4-dihydroxy-5-(3-methylbut-2-en-1-yl)phenyl]-5,7-dihydroxy-8-(3-methylbut-2-en-1-yl)-4H-chromen-4-one
Traditional Name3-[3,4-dihydroxy-5-(3-methylbut-2-en-1-yl)phenyl]-5,7-dihydroxy-8-(3-methylbut-2-en-1-yl)chromen-4-one
CAS Registry Number199331-53-8
SMILES
CC(C)=CCC1=CC(=CC(O)=C1O)C1=COC2=C(CC=C(C)C)C(O)=CC(O)=C2C1=O
InChI Identifier
InChI=1S/C25H26O6/c1-13(2)5-7-15-9-16(10-21(28)23(15)29)18-12-31-25-17(8-6-14(3)4)19(26)11-20(27)22(25)24(18)30/h5-6,9-12,26-29H,7-8H2,1-4H3
InChI KeyDPLWUTYEBRKBLI-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as isoflavones. These are polycyclic compounds containing a 2-isoflavene skeleton which bears a ketone group at the C4 carbon atom.
KingdomOrganic compounds
Super ClassPhenylpropanoids and polyketides
ClassIsoflavonoids
Sub ClassIsoflav-2-enes
Direct ParentIsoflavones
Alternative Parents
Substituents
  • Hydroxyisoflavonoid
  • Isoflavone
  • Chromone
  • Benzopyran
  • 1-benzopyran
  • Catechol
  • 1-hydroxy-4-unsubstituted benzenoid
  • 1-hydroxy-2-unsubstituted benzenoid
  • Phenol
  • Pyranone
  • Monocyclic benzene moiety
  • Pyran
  • Benzenoid
  • Heteroaromatic compound
  • Vinylogous acid
  • Organoheterocyclic compound
  • Oxacycle
  • Organooxygen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Organic oxygen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External DescriptorsNot Available
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
RoleNot Available
Physical Properties
StateNot Available
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water Solubility0.0077 mg/L @ 25 °C (est)The Good Scents Company Information System
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility0.0068 g/LALOGPS
logP4.62ALOGPS
logP6.23ChemAxon
logS-4.8ALOGPS
pKa (Strongest Acidic)6.42ChemAxon
pKa (Strongest Basic)-5.2ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count6ChemAxon
Hydrogen Donor Count4ChemAxon
Polar Surface Area107.22 ŲChemAxon
Rotatable Bond Count5ChemAxon
Refractivity122.15 m³·mol⁻¹ChemAxon
Polarizability46.72 ųChemAxon
Number of Rings3ChemAxon
BioavailabilityYesChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DeepCCS[M+H]+193.50130932474
DeepCCS[M-H]-191.14330932474
DeepCCS[M-2H]-224.67630932474
DeepCCS[M+Na]+199.90430932474
AllCCS[M+H]+205.532859911
AllCCS[M+H-H2O]+202.932859911
AllCCS[M+NH4]+208.032859911
AllCCS[M+Na]+208.732859911
AllCCS[M-H]-197.232859911
AllCCS[M+Na-2H]-197.332859911
AllCCS[M+HCOO]-197.532859911

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, 2022.9.05 minutes32390414
Predicted by Siyang on May 30, 202216.3282 minutes33406817
Predicted by Siyang using ReTip algorithm on June 8, 20221.29 minutes32390414
Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid3435.0 seconds40023050
Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid321.1 seconds40023050
Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid210.9 seconds40023050
Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid169.3 seconds40023050
RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid234.3 seconds40023050
Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid796.5 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 Acid869.5 seconds40023050
HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate)79.2 seconds40023050
UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid1389.9 seconds40023050
BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid747.9 seconds40023050
UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid1651.3 seconds40023050
SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid509.0 seconds40023050
RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid535.4 seconds40023050
MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate213.5 seconds40023050
KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA187.3 seconds40023050
Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water8.3 seconds40023050

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
Glyurallin BCC(C)=CCC1=CC(=CC(O)=C1O)C1=COC2=C(CC=C(C)C)C(O)=CC(O)=C2C1=O5553.0Standard polar33892256
Glyurallin BCC(C)=CCC1=CC(=CC(O)=C1O)C1=COC2=C(CC=C(C)C)C(O)=CC(O)=C2C1=O3613.5Standard non polar33892256
Glyurallin BCC(C)=CCC1=CC(=CC(O)=C1O)C1=COC2=C(CC=C(C)C)C(O)=CC(O)=C2C1=O3796.4Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Glyurallin B,1TMS,isomer #1CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O)=CC(O)=C3C2=O)=CC(O[Si](C)(C)C)=C1O3780.7Semi standard non polar33892256
Glyurallin B,1TMS,isomer #2CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O)=CC(O)=C3C2=O)=CC(O)=C1O[Si](C)(C)C3766.2Semi standard non polar33892256
Glyurallin B,1TMS,isomer #3CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O[Si](C)(C)C)=CC(O)=C3C2=O)=CC(O)=C1O3787.0Semi standard non polar33892256
Glyurallin B,1TMS,isomer #4CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O)=CC(O[Si](C)(C)C)=C3C2=O)=CC(O)=C1O3797.4Semi standard non polar33892256
Glyurallin B,2TMS,isomer #1CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O[Si](C)(C)C)=CC(O)=C3C2=O)=CC(O[Si](C)(C)C)=C1O3632.6Semi standard non polar33892256
Glyurallin B,2TMS,isomer #2CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O)=CC(O[Si](C)(C)C)=C3C2=O)=CC(O[Si](C)(C)C)=C1O3622.5Semi standard non polar33892256
Glyurallin B,2TMS,isomer #3CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O)=CC(O)=C3C2=O)=CC(O[Si](C)(C)C)=C1O[Si](C)(C)C3669.2Semi standard non polar33892256
Glyurallin B,2TMS,isomer #4CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O[Si](C)(C)C)=CC(O)=C3C2=O)=CC(O)=C1O[Si](C)(C)C3632.3Semi standard non polar33892256
Glyurallin B,2TMS,isomer #5CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O)=CC(O[Si](C)(C)C)=C3C2=O)=CC(O)=C1O[Si](C)(C)C3630.3Semi standard non polar33892256
Glyurallin B,2TMS,isomer #6CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O[Si](C)(C)C)=CC(O[Si](C)(C)C)=C3C2=O)=CC(O)=C1O3629.7Semi standard non polar33892256
Glyurallin B,3TMS,isomer #1CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O[Si](C)(C)C)=CC(O[Si](C)(C)C)=C3C2=O)=CC(O[Si](C)(C)C)=C1O3571.5Semi standard non polar33892256
Glyurallin B,3TMS,isomer #2CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O[Si](C)(C)C)=CC(O)=C3C2=O)=CC(O[Si](C)(C)C)=C1O[Si](C)(C)C3587.8Semi standard non polar33892256
Glyurallin B,3TMS,isomer #3CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O)=CC(O[Si](C)(C)C)=C3C2=O)=CC(O[Si](C)(C)C)=C1O[Si](C)(C)C3585.8Semi standard non polar33892256
Glyurallin B,3TMS,isomer #4CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O[Si](C)(C)C)=CC(O[Si](C)(C)C)=C3C2=O)=CC(O)=C1O[Si](C)(C)C3566.8Semi standard non polar33892256
Glyurallin B,4TMS,isomer #1CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O[Si](C)(C)C)=CC(O[Si](C)(C)C)=C3C2=O)=CC(O[Si](C)(C)C)=C1O[Si](C)(C)C3562.4Semi standard non polar33892256
Glyurallin B,1TBDMS,isomer #1CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O)=CC(O)=C3C2=O)=CC(O[Si](C)(C)C(C)(C)C)=C1O4052.7Semi standard non polar33892256
Glyurallin B,1TBDMS,isomer #2CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O)=CC(O)=C3C2=O)=CC(O)=C1O[Si](C)(C)C(C)(C)C4045.7Semi standard non polar33892256
Glyurallin B,1TBDMS,isomer #3CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O[Si](C)(C)C(C)(C)C)=CC(O)=C3C2=O)=CC(O)=C1O4065.7Semi standard non polar33892256
Glyurallin B,1TBDMS,isomer #4CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O)=CC(O[Si](C)(C)C(C)(C)C)=C3C2=O)=CC(O)=C1O4077.2Semi standard non polar33892256
Glyurallin B,2TBDMS,isomer #1CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O[Si](C)(C)C(C)(C)C)=CC(O)=C3C2=O)=CC(O[Si](C)(C)C(C)(C)C)=C1O4135.9Semi standard non polar33892256
Glyurallin B,2TBDMS,isomer #2CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O)=CC(O[Si](C)(C)C(C)(C)C)=C3C2=O)=CC(O[Si](C)(C)C(C)(C)C)=C1O4146.9Semi standard non polar33892256
Glyurallin B,2TBDMS,isomer #3CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O)=CC(O)=C3C2=O)=CC(O[Si](C)(C)C(C)(C)C)=C1O[Si](C)(C)C(C)(C)C4195.0Semi standard non polar33892256
Glyurallin B,2TBDMS,isomer #4CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O[Si](C)(C)C(C)(C)C)=CC(O)=C3C2=O)=CC(O)=C1O[Si](C)(C)C(C)(C)C4134.0Semi standard non polar33892256
Glyurallin B,2TBDMS,isomer #5CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O)=CC(O[Si](C)(C)C(C)(C)C)=C3C2=O)=CC(O)=C1O[Si](C)(C)C(C)(C)C4148.2Semi standard non polar33892256
Glyurallin B,2TBDMS,isomer #6CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O[Si](C)(C)C(C)(C)C)=CC(O[Si](C)(C)C(C)(C)C)=C3C2=O)=CC(O)=C1O4161.8Semi standard non polar33892256
Glyurallin B,3TBDMS,isomer #1CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O[Si](C)(C)C(C)(C)C)=CC(O[Si](C)(C)C(C)(C)C)=C3C2=O)=CC(O[Si](C)(C)C(C)(C)C)=C1O4267.6Semi standard non polar33892256
Glyurallin B,3TBDMS,isomer #2CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O[Si](C)(C)C(C)(C)C)=CC(O)=C3C2=O)=CC(O[Si](C)(C)C(C)(C)C)=C1O[Si](C)(C)C(C)(C)C4251.7Semi standard non polar33892256
Glyurallin B,3TBDMS,isomer #3CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O)=CC(O[Si](C)(C)C(C)(C)C)=C3C2=O)=CC(O[Si](C)(C)C(C)(C)C)=C1O[Si](C)(C)C(C)(C)C4270.3Semi standard non polar33892256
Glyurallin B,3TBDMS,isomer #4CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O[Si](C)(C)C(C)(C)C)=CC(O[Si](C)(C)C(C)(C)C)=C3C2=O)=CC(O)=C1O[Si](C)(C)C(C)(C)C4261.9Semi standard non polar33892256
Glyurallin B,4TBDMS,isomer #1CC(C)=CCC1=CC(C2=COC3=C(CC=C(C)C)C(O[Si](C)(C)C(C)(C)C)=CC(O[Si](C)(C)C(C)(C)C)=C3C2=O)=CC(O[Si](C)(C)C(C)(C)C)=C1O[Si](C)(C)C(C)(C)C4383.0Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Glyurallin B GC-MS (Non-derivatized) - 70eV, Positivesplash10-05mo-2009400000-09c8fdb4ea27501d65b32017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Glyurallin B GC-MS (3 TMS) - 70eV, Positivesplash10-00di-1000049000-52c1175727971142e6522017-10-06Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Glyurallin B GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Glyurallin B 10V, Positive-QTOFsplash10-00di-0105900000-ca579cb6d50b3164fb092016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Glyurallin B 20V, Positive-QTOFsplash10-016r-2209300000-911c2da44eebb610c3002016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Glyurallin B 40V, Positive-QTOFsplash10-014i-4914200000-b4c86eb93d281e044e4b2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Glyurallin B 10V, Negative-QTOFsplash10-00di-0000900000-8bf72fa1d04c59d5d1d12016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Glyurallin B 20V, Negative-QTOFsplash10-00di-0155900000-4a5195a467ac6e48adf82016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Glyurallin B 40V, Negative-QTOFsplash10-004i-0935100000-888f27160ad8a3a22e6e2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Glyurallin B 10V, Positive-QTOFsplash10-01b9-0009400000-befb2ea95b90ef2c66072021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Glyurallin B 20V, Positive-QTOFsplash10-0cka-1019200000-ed4b1bf78b5bff823e3c2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Glyurallin B 40V, Positive-QTOFsplash10-052b-2159000000-8a3d68d89c71be52c03c2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Glyurallin B 10V, Negative-QTOFsplash10-00di-0000900000-1a0e5664f3fc8624ecf12021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Glyurallin B 20V, Negative-QTOFsplash10-00di-0004900000-7ab525a9ce8d6697f2382021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Glyurallin B 40V, Negative-QTOFsplash10-05xr-3359200000-202e5baeed9c4f82e8982021-09-23Wishart LabView Spectrum
Biological Properties
Cellular Locations
  • Membrane
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 IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB008615
KNApSAcK IDC00053268
Chemspider ID23551357
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound15818599
PDB IDNot Available
ChEBI ID175379
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDrw1828771
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. (). Yannai, Shmuel. (2004) Dictionary of food compounds with CD-ROM: Additives, flavors, and ingredients. Boca Raton: Chapman & Hall/CRC.. .

Enzymes

General function:
Involved in magnesium ion binding
Specific function:
Catalyzes the O-methylation, and thereby the inactivation, of catecholamine neurotransmitters and catechol hormones. Also shortens the biological half-lives of certain neuroactive drugs, like L-DOPA, alpha-methyl DOPA and isoproterenol.
Gene Name:
COMT
Uniprot ID:
P21964
Molecular weight:
30036.77
Reactions
Glyurallin B → 5,7-dihydroxy-3-[3-hydroxy-4-methoxy-5-(3-methylbut-2-en-1-yl)phenyl]-8-(3-methylbut-2-en-1-yl)-4H-chromen-4-onedetails
General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. This isoform glucuronidates bilirubin IX-alpha to form both the IX-alpha-C8 and IX-alpha-C12 monoconjugates and diconjugate. Is also able to catalyze the glucuronidation of 17beta-estradiol, 17alpha-ethinylestradiol, 1-hydroxypyrene, 4-methylumbelliferone, 1-naphthol, paranitrophenol, scopoletin, and umbelliferone.
Gene Name:
UGT1A1
Uniprot ID:
P22309
Molecular weight:
59590.91
Reactions
Glyurallin B → 6-{4-[5,7-dihydroxy-8-(3-methylbut-2-en-1-yl)-4-oxo-4H-chromen-3-yl]-2-hydroxy-6-(3-methylbut-2-en-1-yl)phenoxy}-3,4,5-trihydroxyoxane-2-carboxylic aciddetails
Glyurallin B → 6-({3-[3,4-dihydroxy-5-(3-methylbut-2-en-1-yl)phenyl]-5-hydroxy-8-(3-methylbut-2-en-1-yl)-4-oxo-4H-chromen-7-yl}oxy)-3,4,5-trihydroxyoxane-2-carboxylic aciddetails
General function:
sulfotransferase activity
Specific function:
Sulfotransferase that utilizes 3'-phospho-5'-adenylyl sulfate (PAPS) as sulfonate donor to catalyze the sulfate conjugation of phenolic monoamines (neurotransmitters such as dopamine, norepinephrine and serotonin) and phenolic and catechol drugs.
Gene Name:
SULT1A3
Uniprot ID:
P0DMM9
Molecular weight:
34195.96
Reactions
Glyurallin B → {4-[5,7-dihydroxy-8-(3-methylbut-2-en-1-yl)-4-oxo-4H-chromen-3-yl]-2-hydroxy-6-(3-methylbut-2-en-1-yl)phenyl}oxidanesulfonic aciddetails