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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 12:32:28 UTC
Update Date2022-11-23 22:13:43 UTC
HMDB IDHMDB0253714
Secondary Accession NumbersNone
Metabolite Identification
Common NameIsoxicam
DescriptionIsoxicam, also known as maxicam or BRN 0577221, belongs to the class of organic compounds known as benzothiazines. These are organic compounds containing a benzene fused to a thiazine ring (a six-membered ring with four carbon atoms, one nitrogen atom and one sulfur atom). Based on a literature review a significant number of articles have been published on Isoxicam. This compound has been identified in human blood as reported by (PMID: 31557052 ). Isoxicam is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically Isoxicam 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
Synonyms
ValueSource
4-Hydroxy-2-methyl-N-(5-methyl-3-isoxazolyl)-2H-1,2-benzothiazine-3-carboxamide-1,1-dioxideChEBI
4-Hydroxy-3-(5-methyl-3-isoxazolylcarbamoyl)-2-methyl-2H-1,2-benzothiazine 1,1-dioxideChEBI
BRN 0577221ChEBI
EINECS 252-084-5ChEBI
IsoxicamoChEBI
IsoxicamumChEBI
MaxicamChEBI
N-(5-Methyl-3-isoxazolyl)-4-hydroxy-2-methyl-2H-1,2-benzthiazine-3-carboxamide 1,1-dioxideChEBI
UNII-8xu734c4NGChEBI
W 8495ChEBI
VectrenMeSH
Chemical FormulaC14H13N3O5S
Average Molecular Weight335.335
Monoisotopic Molecular Weight335.057591231
IUPAC Name4-hydroxy-2-methyl-N-(5-methyl-2,3-dihydro-1,2-oxazol-3-ylidene)-1,1-dioxo-2H-1λ⁶,2-benzothiazine-3-carboxamide
Traditional Namemaxicam
CAS Registry NumberNot Available
SMILES
CN1C(C(=O)N=C2NOC(C)=C2)=C(O)C2=CC=CC=C2S1(=O)=O
InChI Identifier
InChI=1S/C14H13N3O5S/c1-8-7-11(16-22-8)15-14(19)12-13(18)9-5-3-4-6-10(9)23(20,21)17(12)2/h3-7,18H,1-2H3,(H,15,16,19)
InChI KeyYYUAYBYLJSNDCX-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as benzothiazines. These are organic compounds containing a benzene fused to a thiazine ring (a six-membered ring with four carbon atoms, one nitrogen atom and one sulfur atom).
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassBenzothiazines
Sub ClassNot Available
Direct ParentBenzothiazines
Alternative Parents
Substituents
  • Alpha-amino acid or derivatives
  • Benzothiazine
  • Ortho-thiazine
  • Organosulfonic acid amide
  • Benzenoid
  • Azole
  • Isoxazole
  • Organic sulfonic acid or derivatives
  • Organosulfonic acid or derivatives
  • Vinylogous acid
  • Heteroaromatic compound
  • N-acylimine
  • Carboxylic acid derivative
  • Azacycle
  • Oxacycle
  • Organic oxide
  • Organic nitrogen compound
  • Organooxygen compound
  • Organonitrogen compound
  • Organic oxygen compound
  • Hydrocarbon derivative
  • Organopnictogen compound
  • Carbonyl group
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
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
logP0.6ALOGPS
logP-0.085ChemAxon
logS-3ALOGPS
pKa (Strongest Acidic)4.46ChemAxon
pKa (Strongest Basic)-0.97ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count7ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area108.3 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity94.9 m³·mol⁻¹ChemAxon
Polarizability32.24 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
DeepCCS[M+H]+165.86430932474
DeepCCS[M-H]-163.50630932474
DeepCCS[M-2H]-196.48930932474
DeepCCS[M+Na]+171.95730932474
AllCCS[M+H]+175.432859911
AllCCS[M+H-H2O]+172.132859911
AllCCS[M+NH4]+178.432859911
AllCCS[M+Na]+179.332859911
AllCCS[M-H]-173.332859911
AllCCS[M+Na-2H]-173.032859911
AllCCS[M+HCOO]-172.832859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
isoxicamCN1C(C(=O)N=C2NOC(C)=C2)=C(O)C2=CC=CC=C2S1(=O)=O4176.0Standard polar33892256
isoxicamCN1C(C(=O)N=C2NOC(C)=C2)=C(O)C2=CC=CC=C2S1(=O)=O2859.0Standard non polar33892256
isoxicamCN1C(C(=O)N=C2NOC(C)=C2)=C(O)C2=CC=CC=C2S1(=O)=O2675.4Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
isoxicam,2TMS,isomer #1CC1=CC(=NC(=O)C2=C(O[Si](C)(C)C)C3=CC=CC=C3S(=O)(=O)N2C)N([Si](C)(C)C)O12942.1Semi standard non polar33892256
isoxicam,2TMS,isomer #1CC1=CC(=NC(=O)C2=C(O[Si](C)(C)C)C3=CC=CC=C3S(=O)(=O)N2C)N([Si](C)(C)C)O12978.1Standard non polar33892256
isoxicam,2TMS,isomer #1CC1=CC(=NC(=O)C2=C(O[Si](C)(C)C)C3=CC=CC=C3S(=O)(=O)N2C)N([Si](C)(C)C)O14050.6Standard polar33892256
isoxicam,2TBDMS,isomer #1CC1=CC(=NC(=O)C2=C(O[Si](C)(C)C(C)(C)C)C3=CC=CC=C3S(=O)(=O)N2C)N([Si](C)(C)C(C)(C)C)O13324.2Semi standard non polar33892256
isoxicam,2TBDMS,isomer #1CC1=CC(=NC(=O)C2=C(O[Si](C)(C)C(C)(C)C)C3=CC=CC=C3S(=O)(=O)N2C)N([Si](C)(C)C(C)(C)C)O13439.1Standard non polar33892256
isoxicam,2TBDMS,isomer #1CC1=CC(=NC(=O)C2=C(O[Si](C)(C)C(C)(C)C)C3=CC=CC=C3S(=O)(=O)N2C)N([Si](C)(C)C(C)(C)C)O14065.4Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Isoxicam GC-MS (Non-derivatized) - 70eV, Positivesplash10-014i-5910000000-59f2ea7557d92ab788642021-09-24Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Isoxicam GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Isoxicam GC-MS (TMS_1_1) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Isoxicam GC-MS (TMS_1_2) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Isoxicam GC-MS (TBDMS_1_1) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Isoxicam GC-MS (TBDMS_1_2) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental LC-MS/MSLC-MS/MS Spectrum - Isoxicam LC-ESI-qTof , Positive-QTOFsplash10-004r-3911000000-ea33aeb4c6cdbcd42af12017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isoxicam , positive-QTOFsplash10-0hi2-4920000000-6d8f0aecb48174d3dfd12017-09-14HMDB team, MONAView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isoxicam 10V, Positive-QTOFsplash10-000j-6139000000-eda17764d6ae14c8ea692016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isoxicam 20V, Positive-QTOFsplash10-0002-9100000000-6a727de849d5762b22362016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isoxicam 40V, Positive-QTOFsplash10-014l-9100000000-c14c34207cdf213edad82016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isoxicam 10V, Negative-QTOFsplash10-001i-3019000000-80a85d94a87f57b4278e2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isoxicam 20V, Negative-QTOFsplash10-0002-9114000000-b3bac29c6306d4d35c252016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isoxicam 40V, Negative-QTOFsplash10-000e-9500000000-1aefb087b601b1c5bb272016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isoxicam 10V, Positive-QTOFsplash10-000i-2009000000-ceb60f900f597754c2fe2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isoxicam 20V, Positive-QTOFsplash10-000j-9116000000-7d5aa59172644fb2653a2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isoxicam 40V, Positive-QTOFsplash10-0002-9210000000-e2893be2258651b2bbac2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isoxicam 10V, Negative-QTOFsplash10-00di-0393000000-059648ce6bfdbc7bdc9d2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isoxicam 20V, Negative-QTOFsplash10-000b-4592000000-d145fec97cc1a05cdf042021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isoxicam 40V, Negative-QTOFsplash10-0304-9660000000-20526b055b7fe2f92b6b2021-10-12Wishart 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 IDDB08942
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider ID10442695
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkIsoxicam
METLIN IDNot Available
PubChem CompoundNot Available
PDB IDNot Available
ChEBI ID76163
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 ]