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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2012-09-11 18:25:06 UTC
Update Date2022-03-07 02:53:48 UTC
HMDB IDHMDB0033666
Secondary Accession Numbers
  • HMDB33666
Metabolite Identification
Common NameKB 2
DescriptionKB 2 belongs to the class of organic compounds known as 3-prenylated flavones. These are flavones that features a C5-isoprenoid substituent at the 3-position. Thus, KB 2 is considered to be a flavonoid. In humans, KB 2 is involved in the P53 signaling pathway. KB 2 has been detected, but not quantified in, breadfruits (Artocarpus altilis) and fruits. This could make KB 2 a potential biomarker for the consumption of these foods. KB 2 is a primary metabolite. Primary metabolites are metabolically or physiologically essential metabolites. They are directly involved in an organism’s growth, development or reproduction. Based on a literature review a significant number of articles have been published on KB 2.
Structure
Data?1563862441
Synonyms
ValueSource
5,2',4',5'-Tetrahydroxy-3-(3-hydroxy-3-methylbutyl)-6'',6''-dimethylpyrano[2'',3'':7,8]flavoneHMDB
KB-2HMDB
PhosphomannanHMDB
Phosphomannan backboneHMDB
Chemical FormulaC25H26O8
Average Molecular Weight454.4691
Monoisotopic Molecular Weight454.162767808
IUPAC Name5-hydroxy-3-(3-hydroxy-3-methylbutyl)-8,8-dimethyl-2-(2,4,5-trihydroxyphenyl)-4H,8H-pyrano[2,3-h]chromen-4-one
Traditional Name5-hydroxy-3-(3-hydroxy-3-methylbutyl)-8,8-dimethyl-2-(2,4,5-trihydroxyphenyl)pyrano[2,3-h]chromen-4-one
CAS Registry Number133740-64-4
SMILES
CC(C)(O)CCC1=C(OC2=C(C(O)=CC3=C2C=CC(C)(C)O3)C1=O)C1=CC(O)=C(O)C=C1O
InChI Identifier
InChI=1S/C25H26O8/c1-24(2,31)7-5-13-21(30)20-18(29)11-19-12(6-8-25(3,4)33-19)23(20)32-22(13)14-9-16(27)17(28)10-15(14)26/h6,8-11,26-29,31H,5,7H2,1-4H3
InChI KeyHENAAGIOPZLIKO-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as 3-prenylated flavones. These are flavones that features a C5-isoprenoid substituent at the 3-position.
KingdomOrganic compounds
Super ClassPhenylpropanoids and polyketides
ClassFlavonoids
Sub ClassFlavones
Direct Parent3-prenylated flavones
Alternative Parents
Substituents
  • 3-prenylated flavone
  • Pyranoflavonoid
  • 3'-hydroxyflavonoid
  • 4'-hydroxyflavonoid
  • 5-hydroxyflavonoid
  • Hydroxyflavonoid
  • Pyranochromene
  • 2,2-dimethyl-1-benzopyran
  • Chromone
  • Benzopyran
  • 1-benzopyran
  • Hydroxyquinol derivative
  • 1-hydroxy-2-unsubstituted benzenoid
  • Alkyl aryl ether
  • Phenol
  • Pyranone
  • Monocyclic benzene moiety
  • Benzenoid
  • Pyran
  • Vinylogous acid
  • Heteroaromatic compound
  • Tertiary alcohol
  • Ether
  • Organoheterocyclic compound
  • Oxacycle
  • Polyol
  • Organooxygen compound
  • Organic oxide
  • Organic oxygen compound
  • Alcohol
  • Hydrocarbon derivative
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
Role
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting Point166 - 168 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility0.01 g/LALOGPS
logP3.61ALOGPS
logP3.85ChemAxon
logS-4.7ALOGPS
pKa (Strongest Acidic)8.31ChemAxon
pKa (Strongest Basic)-1.2ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count8ChemAxon
Hydrogen Donor Count5ChemAxon
Polar Surface Area136.68 ŲChemAxon
Rotatable Bond Count4ChemAxon
Refractivity123.83 m³·mol⁻¹ChemAxon
Polarizability47.7 ųChemAxon
Number of Rings4ChemAxon
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]+203.19731661259
DarkChem[M-H]-200.37131661259
DeepCCS[M+H]+204.01330932474
DeepCCS[M-H]-201.61730932474
DeepCCS[M-2H]-234.50130932474
DeepCCS[M+Na]+209.92530932474
AllCCS[M+H]+207.532859911
AllCCS[M+H-H2O]+205.132859911
AllCCS[M+NH4]+209.732859911
AllCCS[M+Na]+210.432859911
AllCCS[M-H]-212.232859911
AllCCS[M+Na-2H]-212.732859911
AllCCS[M+HCOO]-213.532859911

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, 2022.7.53 minutes32390414
Predicted by Siyang on May 30, 202212.7875 minutes33406817
Predicted by Siyang using ReTip algorithm on June 8, 20222.47 minutes32390414
AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid30.1 seconds40023050
Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid2660.0 seconds40023050
Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid179.1 seconds40023050
Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid172.3 seconds40023050
Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid138.1 seconds40023050
RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid155.9 seconds40023050
Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid795.8 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 Acid604.2 seconds40023050
HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate)190.1 seconds40023050
UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid931.5 seconds40023050
BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid459.0 seconds40023050
UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid1464.7 seconds40023050
SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid421.9 seconds40023050
RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid373.5 seconds40023050
MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate235.5 seconds40023050
KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA223.8 seconds40023050
Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water11.0 seconds40023050

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
KB 2CC(C)(O)CCC1=C(OC2=C(C(O)=CC3=C2C=CC(C)(C)O3)C1=O)C1=CC(O)=C(O)C=C1O5337.7Standard polar33892256
KB 2CC(C)(O)CCC1=C(OC2=C(C(O)=CC3=C2C=CC(C)(C)O3)C1=O)C1=CC(O)=C(O)C=C1O3814.8Standard non polar33892256
KB 2CC(C)(O)CCC1=C(OC2=C(C(O)=CC3=C2C=CC(C)(C)O3)C1=O)C1=CC(O)=C(O)C=C1O4029.9Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
KB 2,1TMS,isomer #1CC1(C)C=CC2=C(C=C(O)C3=C2OC(C2=CC(O)=C(O)C=C2O)=C(CCC(C)(C)O[Si](C)(C)C)C3=O)O13805.9Semi standard non polar33892256
KB 2,1TMS,isomer #2CC(C)(O)CCC1=C(C2=CC(O)=C(O)C=C2O)OC2=C3C=CC(C)(C)OC3=CC(O[Si](C)(C)C)=C2C1=O3698.6Semi standard non polar33892256
KB 2,1TMS,isomer #3CC(C)(O)CCC1=C(C2=CC(O[Si](C)(C)C)=C(O)C=C2O)OC2=C3C=CC(C)(C)OC3=CC(O)=C2C1=O3676.2Semi standard non polar33892256
KB 2,1TMS,isomer #4CC(C)(O)CCC1=C(C2=CC(O)=C(O[Si](C)(C)C)C=C2O)OC2=C3C=CC(C)(C)OC3=CC(O)=C2C1=O3702.2Semi standard non polar33892256
KB 2,1TMS,isomer #5CC(C)(O)CCC1=C(C2=CC(O)=C(O)C=C2O[Si](C)(C)C)OC2=C3C=CC(C)(C)OC3=CC(O)=C2C1=O3688.7Semi standard non polar33892256
KB 2,2TMS,isomer #1CC1(C)C=CC2=C(C=C(O[Si](C)(C)C)C3=C2OC(C2=CC(O)=C(O)C=C2O)=C(CCC(C)(C)O[Si](C)(C)C)C3=O)O13689.0Semi standard non polar33892256
KB 2,2TMS,isomer #10CC(C)(O)CCC1=C(C2=CC(O)=C(O[Si](C)(C)C)C=C2O[Si](C)(C)C)OC2=C3C=CC(C)(C)OC3=CC(O)=C2C1=O3585.9Semi standard non polar33892256
KB 2,2TMS,isomer #2CC1(C)C=CC2=C(C=C(O)C3=C2OC(C2=CC(O[Si](C)(C)C)=C(O)C=C2O)=C(CCC(C)(C)O[Si](C)(C)C)C3=O)O13664.2Semi standard non polar33892256
KB 2,2TMS,isomer #3CC1(C)C=CC2=C(C=C(O)C3=C2OC(C2=CC(O)=C(O[Si](C)(C)C)C=C2O)=C(CCC(C)(C)O[Si](C)(C)C)C3=O)O13686.3Semi standard non polar33892256
KB 2,2TMS,isomer #4CC1(C)C=CC2=C(C=C(O)C3=C2OC(C2=CC(O)=C(O)C=C2O[Si](C)(C)C)=C(CCC(C)(C)O[Si](C)(C)C)C3=O)O13674.3Semi standard non polar33892256
KB 2,2TMS,isomer #5CC(C)(O)CCC1=C(C2=CC(O[Si](C)(C)C)=C(O)C=C2O)OC2=C3C=CC(C)(C)OC3=CC(O[Si](C)(C)C)=C2C1=O3575.8Semi standard non polar33892256
KB 2,2TMS,isomer #6CC(C)(O)CCC1=C(C2=CC(O)=C(O[Si](C)(C)C)C=C2O)OC2=C3C=CC(C)(C)OC3=CC(O[Si](C)(C)C)=C2C1=O3601.8Semi standard non polar33892256
KB 2,2TMS,isomer #7CC(C)(O)CCC1=C(C2=CC(O)=C(O)C=C2O[Si](C)(C)C)OC2=C3C=CC(C)(C)OC3=CC(O[Si](C)(C)C)=C2C1=O3584.0Semi standard non polar33892256
KB 2,2TMS,isomer #8CC(C)(O)CCC1=C(C2=CC(O[Si](C)(C)C)=C(O[Si](C)(C)C)C=C2O)OC2=C3C=CC(C)(C)OC3=CC(O)=C2C1=O3632.7Semi standard non polar33892256
KB 2,2TMS,isomer #9CC(C)(O)CCC1=C(C2=CC(O[Si](C)(C)C)=C(O)C=C2O[Si](C)(C)C)OC2=C3C=CC(C)(C)OC3=CC(O)=C2C1=O3586.4Semi standard non polar33892256
KB 2,3TMS,isomer #1CC1(C)C=CC2=C(C=C(O[Si](C)(C)C)C3=C2OC(C2=CC(O[Si](C)(C)C)=C(O)C=C2O)=C(CCC(C)(C)O[Si](C)(C)C)C3=O)O13578.0Semi standard non polar33892256
KB 2,3TMS,isomer #10CC(C)(O)CCC1=C(C2=CC(O[Si](C)(C)C)=C(O[Si](C)(C)C)C=C2O[Si](C)(C)C)OC2=C3C=CC(C)(C)OC3=CC(O)=C2C1=O3575.7Semi standard non polar33892256
KB 2,3TMS,isomer #2CC1(C)C=CC2=C(C=C(O[Si](C)(C)C)C3=C2OC(C2=CC(O)=C(O[Si](C)(C)C)C=C2O)=C(CCC(C)(C)O[Si](C)(C)C)C3=O)O13600.8Semi standard non polar33892256
KB 2,3TMS,isomer #3CC1(C)C=CC2=C(C=C(O[Si](C)(C)C)C3=C2OC(C2=CC(O)=C(O)C=C2O[Si](C)(C)C)=C(CCC(C)(C)O[Si](C)(C)C)C3=O)O13592.1Semi standard non polar33892256
KB 2,3TMS,isomer #4CC1(C)C=CC2=C(C=C(O)C3=C2OC(C2=CC(O[Si](C)(C)C)=C(O[Si](C)(C)C)C=C2O)=C(CCC(C)(C)O[Si](C)(C)C)C3=O)O13652.9Semi standard non polar33892256
KB 2,3TMS,isomer #5CC1(C)C=CC2=C(C=C(O)C3=C2OC(C2=CC(O[Si](C)(C)C)=C(O)C=C2O[Si](C)(C)C)=C(CCC(C)(C)O[Si](C)(C)C)C3=O)O13582.8Semi standard non polar33892256
KB 2,3TMS,isomer #6CC1(C)C=CC2=C(C=C(O)C3=C2OC(C2=CC(O)=C(O[Si](C)(C)C)C=C2O[Si](C)(C)C)=C(CCC(C)(C)O[Si](C)(C)C)C3=O)O13583.2Semi standard non polar33892256
KB 2,3TMS,isomer #7CC(C)(O)CCC1=C(C2=CC(O[Si](C)(C)C)=C(O[Si](C)(C)C)C=C2O)OC2=C3C=CC(C)(C)OC3=CC(O[Si](C)(C)C)=C2C1=O3570.5Semi standard non polar33892256
KB 2,3TMS,isomer #8CC(C)(O)CCC1=C(C2=CC(O[Si](C)(C)C)=C(O)C=C2O[Si](C)(C)C)OC2=C3C=CC(C)(C)OC3=CC(O[Si](C)(C)C)=C2C1=O3528.3Semi standard non polar33892256
KB 2,3TMS,isomer #9CC(C)(O)CCC1=C(C2=CC(O)=C(O[Si](C)(C)C)C=C2O[Si](C)(C)C)OC2=C3C=CC(C)(C)OC3=CC(O[Si](C)(C)C)=C2C1=O3528.1Semi standard non polar33892256
KB 2,4TMS,isomer #1CC1(C)C=CC2=C(C=C(O[Si](C)(C)C)C3=C2OC(C2=CC(O[Si](C)(C)C)=C(O[Si](C)(C)C)C=C2O)=C(CCC(C)(C)O[Si](C)(C)C)C3=O)O13594.2Semi standard non polar33892256
KB 2,4TMS,isomer #2CC1(C)C=CC2=C(C=C(O[Si](C)(C)C)C3=C2OC(C2=CC(O[Si](C)(C)C)=C(O)C=C2O[Si](C)(C)C)=C(CCC(C)(C)O[Si](C)(C)C)C3=O)O13590.6Semi standard non polar33892256
KB 2,4TMS,isomer #3CC1(C)C=CC2=C(C=C(O[Si](C)(C)C)C3=C2OC(C2=CC(O)=C(O[Si](C)(C)C)C=C2O[Si](C)(C)C)=C(CCC(C)(C)O[Si](C)(C)C)C3=O)O13591.4Semi standard non polar33892256
KB 2,4TMS,isomer #4CC1(C)C=CC2=C(C=C(O)C3=C2OC(C2=CC(O[Si](C)(C)C)=C(O[Si](C)(C)C)C=C2O[Si](C)(C)C)=C(CCC(C)(C)O[Si](C)(C)C)C3=O)O13595.0Semi standard non polar33892256
KB 2,4TMS,isomer #5CC(C)(O)CCC1=C(C2=CC(O[Si](C)(C)C)=C(O[Si](C)(C)C)C=C2O[Si](C)(C)C)OC2=C3C=CC(C)(C)OC3=CC(O[Si](C)(C)C)=C2C1=O3539.2Semi standard non polar33892256
KB 2,5TMS,isomer #1CC1(C)C=CC2=C(C=C(O[Si](C)(C)C)C3=C2OC(C2=CC(O[Si](C)(C)C)=C(O[Si](C)(C)C)C=C2O[Si](C)(C)C)=C(CCC(C)(C)O[Si](C)(C)C)C3=O)O13606.6Semi standard non polar33892256
KB 2,1TBDMS,isomer #1CC1(C)C=CC2=C(C=C(O)C3=C2OC(C2=CC(O)=C(O)C=C2O)=C(CCC(C)(C)O[Si](C)(C)C(C)(C)C)C3=O)O14090.0Semi standard non polar33892256
KB 2,1TBDMS,isomer #2CC(C)(O)CCC1=C(C2=CC(O)=C(O)C=C2O)OC2=C3C=CC(C)(C)OC3=CC(O[Si](C)(C)C(C)(C)C)=C2C1=O3965.3Semi standard non polar33892256
KB 2,1TBDMS,isomer #3CC(C)(O)CCC1=C(C2=CC(O[Si](C)(C)C(C)(C)C)=C(O)C=C2O)OC2=C3C=CC(C)(C)OC3=CC(O)=C2C1=O3936.3Semi standard non polar33892256
KB 2,1TBDMS,isomer #4CC(C)(O)CCC1=C(C2=CC(O)=C(O[Si](C)(C)C(C)(C)C)C=C2O)OC2=C3C=CC(C)(C)OC3=CC(O)=C2C1=O3969.8Semi standard non polar33892256
KB 2,1TBDMS,isomer #5CC(C)(O)CCC1=C(C2=CC(O)=C(O)C=C2O[Si](C)(C)C(C)(C)C)OC2=C3C=CC(C)(C)OC3=CC(O)=C2C1=O3945.4Semi standard non polar33892256
KB 2,2TBDMS,isomer #1CC1(C)C=CC2=C(C=C(O[Si](C)(C)C(C)(C)C)C3=C2OC(C2=CC(O)=C(O)C=C2O)=C(CCC(C)(C)O[Si](C)(C)C(C)(C)C)C3=O)O14204.8Semi standard non polar33892256
KB 2,2TBDMS,isomer #10CC(C)(O)CCC1=C(C2=CC(O)=C(O[Si](C)(C)C(C)(C)C)C=C2O[Si](C)(C)C(C)(C)C)OC2=C3C=CC(C)(C)OC3=CC(O)=C2C1=O4070.8Semi standard non polar33892256
KB 2,2TBDMS,isomer #2CC1(C)C=CC2=C(C=C(O)C3=C2OC(C2=CC(O[Si](C)(C)C(C)(C)C)=C(O)C=C2O)=C(CCC(C)(C)O[Si](C)(C)C(C)(C)C)C3=O)O14181.9Semi standard non polar33892256
KB 2,2TBDMS,isomer #3CC1(C)C=CC2=C(C=C(O)C3=C2OC(C2=CC(O)=C(O[Si](C)(C)C(C)(C)C)C=C2O)=C(CCC(C)(C)O[Si](C)(C)C(C)(C)C)C3=O)O14215.1Semi standard non polar33892256
KB 2,2TBDMS,isomer #4CC1(C)C=CC2=C(C=C(O)C3=C2OC(C2=CC(O)=C(O)C=C2O[Si](C)(C)C(C)(C)C)=C(CCC(C)(C)O[Si](C)(C)C(C)(C)C)C3=O)O14190.3Semi standard non polar33892256
KB 2,2TBDMS,isomer #5CC(C)(O)CCC1=C(C2=CC(O[Si](C)(C)C(C)(C)C)=C(O)C=C2O)OC2=C3C=CC(C)(C)OC3=CC(O[Si](C)(C)C(C)(C)C)=C2C1=O4053.1Semi standard non polar33892256
KB 2,2TBDMS,isomer #6CC(C)(O)CCC1=C(C2=CC(O)=C(O[Si](C)(C)C(C)(C)C)C=C2O)OC2=C3C=CC(C)(C)OC3=CC(O[Si](C)(C)C(C)(C)C)=C2C1=O4082.1Semi standard non polar33892256
KB 2,2TBDMS,isomer #7CC(C)(O)CCC1=C(C2=CC(O)=C(O)C=C2O[Si](C)(C)C(C)(C)C)OC2=C3C=CC(C)(C)OC3=CC(O[Si](C)(C)C(C)(C)C)=C2C1=O4050.5Semi standard non polar33892256
KB 2,2TBDMS,isomer #8CC(C)(O)CCC1=C(C2=CC(O[Si](C)(C)C(C)(C)C)=C(O[Si](C)(C)C(C)(C)C)C=C2O)OC2=C3C=CC(C)(C)OC3=CC(O)=C2C1=O4091.1Semi standard non polar33892256
KB 2,2TBDMS,isomer #9CC(C)(O)CCC1=C(C2=CC(O[Si](C)(C)C(C)(C)C)=C(O)C=C2O[Si](C)(C)C(C)(C)C)OC2=C3C=CC(C)(C)OC3=CC(O)=C2C1=O4066.8Semi standard non polar33892256
KB 2,3TBDMS,isomer #1CC1(C)C=CC2=C(C=C(O[Si](C)(C)C(C)(C)C)C3=C2OC(C2=CC(O[Si](C)(C)C(C)(C)C)=C(O)C=C2O)=C(CCC(C)(C)O[Si](C)(C)C(C)(C)C)C3=O)O14250.5Semi standard non polar33892256
KB 2,3TBDMS,isomer #10CC(C)(O)CCC1=C(C2=CC(O[Si](C)(C)C(C)(C)C)=C(O[Si](C)(C)C(C)(C)C)C=C2O[Si](C)(C)C(C)(C)C)OC2=C3C=CC(C)(C)OC3=CC(O)=C2C1=O4165.1Semi standard non polar33892256
KB 2,3TBDMS,isomer #2CC1(C)C=CC2=C(C=C(O[Si](C)(C)C(C)(C)C)C3=C2OC(C2=CC(O)=C(O[Si](C)(C)C(C)(C)C)C=C2O)=C(CCC(C)(C)O[Si](C)(C)C(C)(C)C)C3=O)O14280.6Semi standard non polar33892256
KB 2,3TBDMS,isomer #3CC1(C)C=CC2=C(C=C(O[Si](C)(C)C(C)(C)C)C3=C2OC(C2=CC(O)=C(O)C=C2O[Si](C)(C)C(C)(C)C)=C(CCC(C)(C)O[Si](C)(C)C(C)(C)C)C3=O)O14254.6Semi standard non polar33892256
KB 2,3TBDMS,isomer #4CC1(C)C=CC2=C(C=C(O)C3=C2OC(C2=CC(O[Si](C)(C)C(C)(C)C)=C(O[Si](C)(C)C(C)(C)C)C=C2O)=C(CCC(C)(C)O[Si](C)(C)C(C)(C)C)C3=O)O14293.8Semi standard non polar33892256
KB 2,3TBDMS,isomer #5CC1(C)C=CC2=C(C=C(O)C3=C2OC(C2=CC(O[Si](C)(C)C(C)(C)C)=C(O)C=C2O[Si](C)(C)C(C)(C)C)=C(CCC(C)(C)O[Si](C)(C)C(C)(C)C)C3=O)O14276.8Semi standard non polar33892256
KB 2,3TBDMS,isomer #6CC1(C)C=CC2=C(C=C(O)C3=C2OC(C2=CC(O)=C(O[Si](C)(C)C(C)(C)C)C=C2O[Si](C)(C)C(C)(C)C)=C(CCC(C)(C)O[Si](C)(C)C(C)(C)C)C3=O)O14280.6Semi standard non polar33892256
KB 2,3TBDMS,isomer #7CC(C)(O)CCC1=C(C2=CC(O[Si](C)(C)C(C)(C)C)=C(O[Si](C)(C)C(C)(C)C)C=C2O)OC2=C3C=CC(C)(C)OC3=CC(O[Si](C)(C)C(C)(C)C)=C2C1=O4161.8Semi standard non polar33892256
KB 2,3TBDMS,isomer #8CC(C)(O)CCC1=C(C2=CC(O[Si](C)(C)C(C)(C)C)=C(O)C=C2O[Si](C)(C)C(C)(C)C)OC2=C3C=CC(C)(C)OC3=CC(O[Si](C)(C)C(C)(C)C)=C2C1=O4150.9Semi standard non polar33892256
KB 2,3TBDMS,isomer #9CC(C)(O)CCC1=C(C2=CC(O)=C(O[Si](C)(C)C(C)(C)C)C=C2O[Si](C)(C)C(C)(C)C)OC2=C3C=CC(C)(C)OC3=CC(O[Si](C)(C)C(C)(C)C)=C2C1=O4152.9Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - KB 2 GC-MS (Non-derivatized) - 70eV, Positivesplash10-052u-9114800000-7a22be051fa0ac315be52017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - KB 2 GC-MS (3 TMS) - 70eV, Positivesplash10-0a4i-3200049000-56335fcc08f811dbfd602017-10-06Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - KB 2 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 - KB 2 10V, Positive-QTOFsplash10-000i-0003900000-77c85caf26750fca74242016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - KB 2 20V, Positive-QTOFsplash10-00m0-3009700000-828ec56e3024980f65d02016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - KB 2 40V, Positive-QTOFsplash10-02t9-4059000000-ce3aad880f6b5f658f9c2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - KB 2 10V, Negative-QTOFsplash10-0udi-0001900000-0f70e2c9b6ee24032a922016-08-04Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - KB 2 20V, Negative-QTOFsplash10-0udr-0005900000-baa046ec5908f01ec2fe2016-08-04Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - KB 2 40V, Negative-QTOFsplash10-004i-2938300000-ba7a1a99aaa3f3804eec2016-08-04Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - KB 2 10V, Negative-QTOFsplash10-0udi-0000900000-263ecd3bd387cbadede12021-09-21Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - KB 2 20V, Negative-QTOFsplash10-0udi-0000900000-263ecd3bd387cbadede12021-09-21Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - KB 2 40V, Negative-QTOFsplash10-0fvi-0191200000-181d2e8b852992a6598d2021-09-21Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - KB 2 10V, Positive-QTOFsplash10-0a4i-0000900000-5773dd58db6fdc78a3012021-09-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - KB 2 20V, Positive-QTOFsplash10-0a4i-0000900000-5773dd58db6fdc78a3012021-09-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - KB 2 40V, Positive-QTOFsplash10-0aor-0090400000-6106c86d3bfba32fbb502021-09-25Wishart 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 IDFDB011769
KNApSAcK IDC00004105
Chemspider ID10283325
KEGG Compound IDC02347
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound14630497
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
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
KB 2 → 2-(2,5-dihydroxy-4-methoxyphenyl)-5-hydroxy-3-(3-hydroxy-3-methylbutyl)-8,8-dimethyl-4H,8H-pyrano[2,3-f]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
KB 2 → 6-{4,5-dihydroxy-2-[5-hydroxy-3-(3-hydroxy-3-methylbutyl)-8,8-dimethyl-4-oxo-4H,8H-pyrano[2,3-f]chromen-2-yl]phenoxy}-3,4,5-trihydroxyoxane-2-carboxylic aciddetails
KB 2 → 6-{2,5-dihydroxy-4-[5-hydroxy-3-(3-hydroxy-3-methylbutyl)-8,8-dimethyl-4-oxo-4H,8H-pyrano[2,3-f]chromen-2-yl]phenoxy}-3,4,5-trihydroxyoxane-2-carboxylic aciddetails
KB 2 → 6-{2,4-dihydroxy-5-[5-hydroxy-3-(3-hydroxy-3-methylbutyl)-8,8-dimethyl-4-oxo-4H,8H-pyrano[2,3-f]chromen-2-yl]phenoxy}-3,4,5-trihydroxyoxane-2-carboxylic aciddetails
KB 2 → 3,4,5-trihydroxy-6-{[3-(3-hydroxy-3-methylbutyl)-8,8-dimethyl-4-oxo-2-(2,4,5-trihydroxyphenyl)-4H,8H-pyrano[2,3-f]chromen-5-yl]oxy}oxane-2-carboxylic aciddetails