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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 14:07:14 UTC
Update Date2022-11-23 22:29:17 UTC
HMDB IDHMDB0254729
Secondary Accession NumbersNone
Metabolite Identification
Common NameMilbemycin beta3
Description7'-hydroxy-5,6,6',10',14',16'-hexamethyl-2',20'-dioxaspiro[oxane-2,21'-tricyclo[17.3.1.0⁴,⁹]tricosane]-4'(9'),5',7',10',12',16'-hexaen-3'-one belongs to the class of organic compounds known as milbemycins. These are a group of macrolides with a structure containing a 16-membered lactone ring fused to a 1,7-dioxaspiroundecane ring system and to either a benzofuran (or hydrogenated derivative thereof). In some cases (e.g. Milbemycin E), the tetrahydrofuranyl ring is missing. Milbemycins can be o-glycosylated at C13 to form Avermectins. Milbemycins are produced by Streptomyces species. 7'-hydroxy-5,6,6',10',14',16'-hexamethyl-2',20'-dioxaspiro[oxane-2,21'-tricyclo[17.3.1.0⁴,⁹]tricosane]-4'(9'),5',7',10',12',16'-hexaen-3'-one is an extremely weak basic (essentially neutral) compound (based on its pKa). This compound has been identified in human blood as reported by (PMID: 31557052 ). Milbemycin beta3 is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically Milbemycin beta3 is part of the human exposome. The exposome can be defined as the collection of all the exposures of an individual in a lifetime and how those exposures relate to health. An individual's exposure begins before birth and includes insults from environmental and occupational sources.
Structure
Thumb
SynonymsNot Available
Chemical FormulaC31H42O5
Average Molecular Weight494.672
Monoisotopic Molecular Weight494.303224452
IUPAC Name7'-hydroxy-5,6,6',10',14',16'-hexamethyl-2',20'-dioxaspiro[oxane-2,21'-tricyclo[17.3.1.0⁴,⁹]tricosane]-4',6',8',10',12',16'-hexaen-3'-one
Traditional Name7'-hydroxy-5,6,6',10',14',16'-hexamethyl-2',20'-dioxaspiro[oxane-2,21'-tricyclo[17.3.1.0⁴,⁹]tricosane]-4',6',8',10',12',16'-hexaen-3'-one
CAS Registry NumberNot Available
SMILES
CC1CCC2(CC3CC(CC=C(C)CC(C)C=CC=C(C)C4=CC(O)=C(C)C=C4C(=O)O3)O2)OC1C
InChI Identifier
InChI=1S/C31H42O5/c1-19-8-7-9-22(4)27-17-29(32)23(5)15-28(27)30(33)34-26-16-25(11-10-20(2)14-19)36-31(18-26)13-12-21(3)24(6)35-31/h7-10,15,17,19,21,24-26,32H,11-14,16,18H2,1-6H3
InChI KeyPPMBESPRWFQXDF-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as milbemycins. These are a group of macrolides with a structure containing a 16-membered lactone ring fused to a 1,7-dioxaspiroundecane ring system and to either a benzofuran (or hydrogenated derivative thereof). In some cases (e.G. Milbemycin E), the tetrahydrofuranyl ring is missing. Milbemycins can be o-glycosylated at C13 to form Avermectins. Milbemycins are produced by Streptomyces species.
KingdomOrganic compounds
Super ClassPhenylpropanoids and polyketides
ClassMacrolides and analogues
Sub ClassMilbemycins
Direct ParentMilbemycins
Alternative Parents
Substituents
  • Milbemycin
  • 1-hydroxy-2-unsubstituted benzenoid
  • Ketal
  • Oxane
  • Benzenoid
  • Carboxylic acid ester
  • Lactone
  • Monocarboxylic acid or derivatives
  • Acetal
  • Carboxylic acid derivative
  • Organoheterocyclic compound
  • Oxacycle
  • Hydrocarbon derivative
  • Organic oxide
  • Organooxygen compound
  • 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 SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
logP6.22ALOGPS
logP7.56ChemAxon
logS-5.8ALOGPS
pKa (Strongest Acidic)8.77ChemAxon
pKa (Strongest Basic)-4.1ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area64.99 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity146.45 m³·mol⁻¹ChemAxon
Polarizability56.35 ųChemAxon
Number of Rings4ChemAxon
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]+224.34830932474
DeepCCS[M-H]-221.9930932474
DeepCCS[M-2H]-254.87530932474
DeepCCS[M+Na]+230.75930932474
AllCCS[M+H]+222.332859911
AllCCS[M+H-H2O]+220.032859911
AllCCS[M+NH4]+224.332859911
AllCCS[M+Na]+224.932859911
AllCCS[M-H]-234.232859911
AllCCS[M+Na-2H]-237.032859911
AllCCS[M+HCOO]-240.132859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
milbemycin beta3CC1CCC2(CC3CC(CC=C(C)CC(C)C=CC=C(C)C4=CC(O)=C(C)C=C4C(=O)O3)O2)OC1C4570.3Standard polar33892256
milbemycin beta3CC1CCC2(CC3CC(CC=C(C)CC(C)C=CC=C(C)C4=CC(O)=C(C)C=C4C(=O)O3)O2)OC1C3697.4Standard non polar33892256
milbemycin beta3CC1CCC2(CC3CC(CC=C(C)CC(C)C=CC=C(C)C4=CC(O)=C(C)C=C4C(=O)O3)O2)OC1C3722.6Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Milbemycin beta3 GC-MS (Non-derivatized) - 70eV, Positivesplash10-057i-9105800000-1f8b65e19bfeb36bb4c92021-09-24Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Milbemycin beta3 GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Milbemycin beta3 GC-MS (TMS_1_1) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Milbemycin beta3 GC-MS (TBDMS_1_1) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Milbemycin beta3 10V, Positive-QTOFsplash10-0002-0000900000-ef298f452494dedf51372021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Milbemycin beta3 20V, Positive-QTOFsplash10-0a6s-3000900000-84b9b63fb7329de726332021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Milbemycin beta3 40V, Positive-QTOFsplash10-0kfw-4004900000-88838e726ded7dca5f842021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Milbemycin beta3 10V, Negative-QTOFsplash10-0006-0000900000-c32abd01db5d5ed3a37b2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Milbemycin beta3 20V, Negative-QTOFsplash10-0006-0302900000-507da90ef46647f73c082021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Milbemycin beta3 40V, Negative-QTOFsplash10-0a4i-2403900000-404fe205fa07b4fe31aa2021-10-12Wishart LabView Spectrum
Biological Properties
Cellular LocationsNot Available
Biospecimen Locations
  • Blood
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider IDNot Available
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound185845
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. Barupal DK, Fiehn O: Generating the Blood Exposome Database Using a Comprehensive Text Mining and Database Fusion Approach. Environ Health Perspect. 2019 Sep;127(9):97008. doi: 10.1289/EHP4713. Epub 2019 Sep 26. [PubMed:31557052 ]