Record Information
Version1.0
Creation Date2009-07-21 20:27:15 UTC
Update Date2016-11-09 01:08:43 UTC
Accession NumberCHEM002230
Identification
Common NameRifabutin
ClassSmall Molecule
DescriptionRifabutin is only found in individuals that have used or taken this drug. It is a broad-spectrum antibiotic that is being used as prophylaxis against disseminated Mycobacterium avium complex infection in HIV-positive patients. [PubChem]Rifabutin acts via the inhibition of DNA-dependent RNA polymerase in gram-positive and some gram-negative bacteria, leading to a suppression of RNA synthesis and cell death.
Contaminant Sources
  • HMDB Contaminants - Urine
  • STOFF IDENT Compounds
  • T3DB toxins
  • ToxCast & Tox21 Chemicals
Contaminant Type
  • Amide
  • Amine
  • Anti-Bacterial Agent
  • Antibiotic, Antitubercular
  • Drug
  • Ester
  • Ether
  • Metabolite
  • Organic Compound
  • Synthetic Compound
Chemical Structure
Thumb
SynonymsNot Available
Chemical FormulaC46H62N4O11
Average Molecular Mass847.005 g/mol
Monoisotopic Mass846.442 g/mol
CAS Registry Number72559-06-9
IUPAC Name(7S,9Z,11S,12R,13S,14R,15R,16R,17S,18S,19Z,21Z)-2,15,17,23-tetrahydroxy-11-methoxy-3,7,12,14,16,18,22-heptamethyl-1'-(2-methylpropyl)-6,32-dioxo-8,33-dioxa-24,27,29-triazaspiro[pentacyclo[23.6.1.1^{4,7}.0^{5,31}.0^{26,30}]tritriacontane-28,4'-piperidine]-1(31),2,4,9,19,21,23,25,29-nonaen-13-yl acetate
Traditional Name(7S,9Z,11S,12R,13S,14R,15R,16R,17S,18S,19Z,21Z)-2,15,17,23-tetrahydroxy-11-methoxy-3,7,12,14,16,18,22-heptamethyl-1'-(2-methylpropyl)-6,32-dioxo-8,33-dioxa-24,27,29-triazaspiro[pentacyclo[23.6.1.1^{4,7}.0^{5,31}.0^{26,30}]tritriacontane-28,4'-piperidine]-1(31),2,4,9,19,21,23,25,29-nonaen-13-yl acetate
SMILES[H]\C1=C([H])\[C@]([H])(OC)[C@@]([H])(C)[C@@]([H])(OC(C)=O)[C@]([H])(C)[C@]([H])(O)[C@]([H])(C)[C@@]([H])(O)[C@@]([H])(C)\C([H])=C(\[H])/C(/[H])=C(C)\C(O)=NC2=C3NC4(CCN(CC(C)C)CC4)N=C3C3=C(C(O)=C(C)C4=C3C(=O)[C@](C)(O4)O1)C2=O
InChI IdentifierInChI=1S/C46H62N4O11/c1-22(2)21-50-18-16-46(17-19-50)48-34-31-32-39(54)28(8)42-33(31)43(56)45(10,61-42)59-20-15-30(58-11)25(5)41(60-29(9)51)27(7)38(53)26(6)37(52)23(3)13-12-14-24(4)44(57)47-36(40(32)55)35(34)49-46/h12-15,20,22-23,25-27,30,37-38,41,49,52-54H,16-19,21H2,1-11H3,(H,47,57)/b13-12-,20-15-,24-14-/t23-,25+,26+,27+,30-,37-,38+,41+,45-/m0/s1
InChI KeyATEBXHFBFRCZMA-DVAZEERGSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as macrolactams. These are cyclic amides of amino carboxylic acids, having a 1-azacycloalkan-2-one structure, or analogues having unsaturation or heteroatoms replacing one or more carbon atoms of the ring. They are nitrogen analogues (the a nitrogen atom replacing the o atom of the cyclic carboxylic acid group ) of the naturally occurring macrolides.
KingdomOrganic compounds
Super ClassPhenylpropanoids and polyketides
ClassMacrolactams
Sub ClassNot Available
Direct ParentMacrolactams
Alternative Parents
Substituents
  • Naphthofuran
  • Macrolactam
  • Azaspirodecane
  • Naphthalene
  • Benzofuran
  • Coumaran
  • Aryl ketone
  • Aryl alkyl ketone
  • Ketal
  • Piperidine
  • Benzenoid
  • 3-imidazoline
  • Vinylogous amide
  • Vinylogous acid
  • Lactam
  • Ketimine
  • Amino acid or derivatives
  • Tertiary aliphatic amine
  • Tertiary amine
  • Secondary carboxylic acid amide
  • Carboxylic acid ester
  • Ketone
  • Carboxamide group
  • Secondary alcohol
  • Acetal
  • Carboxylic acid derivative
  • Dialkyl ether
  • Secondary aliphatic amine
  • Enamine
  • Ether
  • Oxacycle
  • Azacycle
  • Organoheterocyclic compound
  • Organic 1,3-dipolar compound
  • Propargyl-type 1,3-dipolar organic compound
  • Monocarboxylic acid or derivatives
  • Polyol
  • Secondary amine
  • Organic oxygen compound
  • Organopnictogen compound
  • Imine
  • Carbonyl group
  • Organic oxide
  • Alcohol
  • Hydrocarbon derivative
  • Amine
  • Organic nitrogen compound
  • Organonitrogen compound
  • Organooxygen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External DescriptorsNot Available
Biological Properties
StatusDetected and Not Quantified
OriginExogenous
Cellular Locations
  • Cytoplasm
  • Membrane
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
Applications
Biological Roles
Chemical RolesNot Available
Physical Properties
StateSolid
AppearanceWhite powder.
Experimental Properties
PropertyValue
Melting PointNot Available
Boiling PointNot Available
SolubilityMinimally soluble (0.19 mg/mL)
Predicted Properties
PropertyValueSource
Water Solubility0.0091 g/LALOGPS
logP4.31ALOGPS
logP3.44ChemAxon
logS-5ALOGPS
pKa (Strongest Acidic)5.29ChemAxon
pKa (Strongest Basic)7.9ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count14ChemAxon
Hydrogen Donor Count5ChemAxon
Polar Surface Area209.04 ŲChemAxon
Rotatable Bond Count5ChemAxon
Refractivity233.17 m³·mol⁻¹ChemAxon
Polarizability91.1 ųChemAxon
Number of Rings6ChemAxon
Bioavailability0ChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-06vi-2000000290-b6c2e05a4e08c21c8009Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0a4i-8000002970-8db040b5d2c5d1c7f870Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0a4i-9000003500-61568975d849f4e01490Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0002-1000000390-013052b1c69581676709Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0kbs-2000000790-222783e8f7fc477df855Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-000m-3000001910-593444223c16d943f93eSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-05pa-0000000970-2dfaa272c475120f1997Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-00kr-0000000930-3f004468a35f4bfc7d81Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-00kk-0000000950-e0fa551433e76d0694bbSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0002-1000000290-6b79ec41174e5c65892fSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0a4i-6000000930-138088289c4e164844b3Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-000l-2000000940-3d9bc441c2d70d547151Spectrum
Toxicity Profile
Route of ExposureRifabutin is readily absorbed from the gastrointestinal tract, with an absolute bioavailability averaging 20%.
Mechanism of ToxicityRifabutin acts via the inhibition of DNA-dependent RNA polymerase in gram-positive and some gram-negative bacteria, leading to a suppression of RNA synthesis and cell death.
MetabolismHepatic. Of the five metabolites that have been identified, 25-O-desacetyl and 31-hydroxy are the most predominant. The former metabolite has an activity equal to the parent drug and contributes up to 10% to the total antimicrobial activity. Route of Elimination: A mass-balance study in three healthy adult volunteers with 14C-labeled rifabutin showed that 53% of the oral dose was excreted in the urine, primarily as metabolites. About 30% of the dose is excreted in the feces. Half Life: 45 (± 17) hours
Toxicity ValuesLD50: 4.8 g/kg (male mouse)
Lethal DoseNot Available
Carcinogenicity (IARC Classification)No indication of carcinogenicity to humans (not listed by IARC).
Uses/SourcesFor the prevention of disseminated Mycobacterium avium complex (MAC) disease in patients with advanced HIV infection. Used in the treatment of tuberculosis. It has also found to be useful in the treatment of (Chlamydia) Chlamydophila pneumoniae (Cpn) Infection.[Wikipedia]
Minimum Risk LevelNot Available
Health EffectsNot Available
SymptomsSymptoms include diarrhea, eructation, abdominal pain, vomitting, nausea, and insomnia.
TreatmentClinical experience with rifamycins suggests that gastric lavage to evacuate gastric contents (within a few hours of overdose), followed by instillation of an activated charcoal slurry into the stomach, may help absorb any remaining drug from the gastrointestinal tract. (2)
Concentrations
Not Available
DrugBank IDNot Available
HMDB IDHMDB0014753
FooDB IDNot Available
Phenol Explorer IDNot Available
KNApSAcK IDC00027872
BiGG IDNot Available
BioCyc IDNot Available
METLIN IDNot Available
PDB IDNot Available
Wikipedia LinkRifabutin
Chemspider ID24824093
ChEBI IDNot Available
PubChem Compound ID46783538
Kegg Compound IDNot Available
YMDB IDNot Available
ECMDB IDNot Available
References
Synthesis ReferenceNot Available
MSDSLink
General ReferencesNot Available