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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2012-09-11 18:18:17 UTC
Update Date2022-03-07 02:53:46 UTC
HMDB IDHMDB0033570
Secondary Accession Numbers
  • HMDB33570
Metabolite Identification
Common NameQS 21
DescriptionQS 21 belongs to the class of organic compounds known as triterpene saponins. These are glycosylated derivatives of triterpene sapogenins. The sapogenin moiety backbone is usually based on the oleanane, ursane, taraxastane, bauerane, lanostane, lupeol, lupane, dammarane, cycloartane, friedelane, hopane, 9b,19-cyclo-lanostane, cycloartane, or cycloartanol skeleton. Based on a literature review a significant number of articles have been published on QS 21.
Structure
Data?1563862426
Synonyms
ValueSource
StimulonHMDB
6-{[8a-({[3-({5-[(4-{[3,4-dihydroxy-4-(hydroxymethyl)oxolan-2-yl]oxy}-3,5-dihydroxyoxan-2-yl)oxy]-3,4-dihydroxy-6-methyloxan-2-yl}oxy)-5-({5-[(5-{[3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]oxy}-3-hydroxy-6-methyloctanoyl)oxy]-3-hydroxy-6-methyloctanoyl}oxy)-4-hydroxy-6-methyloxan-2-yl]oxy}carbonyl)-4-formyl-8-hydroxy-4,6a,6b,11,11,14b-hexamethyl-1,2,3,4,4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a,14,14a,14b-icosahydropicen-3-yl]oxy}-3-hydroxy-5-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-4-[(3,4,5-trihydroxyoxan-2-yl)oxy]oxane-2-carboxylateGenerator
QS 21MeSH
SQ 21aMeSH
Saponin qa-21V1MeSH
QS-21MeSH
Chemical FormulaC92H148O46
Average Molecular Weight1990.1319
Monoisotopic Molecular Weight1988.924177348
IUPAC Name6-{[8a-({[3-({5-[(4-{[3,4-dihydroxy-4-(hydroxymethyl)oxolan-2-yl]oxy}-3,5-dihydroxyoxan-2-yl)oxy]-3,4-dihydroxy-6-methyloxan-2-yl}oxy)-5-({5-[(5-{[3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]oxy}-3-hydroxy-6-methyloctanoyl)oxy]-3-hydroxy-6-methyloctanoyl}oxy)-4-hydroxy-6-methyloxan-2-yl]oxy}carbonyl)-4-formyl-8-hydroxy-4,6a,6b,11,11,14b-hexamethyl-1,2,3,4,4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a,14,14a,14b-icosahydropicen-3-yl]oxy}-3-hydroxy-5-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-4-[(3,4,5-trihydroxyoxan-2-yl)oxy]oxane-2-carboxylic acid
Traditional Name6-{[8a-({[3-({5-[(4-{[3,4-dihydroxy-4-(hydroxymethyl)oxolan-2-yl]oxy}-3,5-dihydroxyoxan-2-yl)oxy]-3,4-dihydroxy-6-methyloxan-2-yl}oxy)-5-({5-[(5-{[3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]oxy}-3-hydroxy-6-methyloctanoyl)oxy]-3-hydroxy-6-methyloctanoyl}oxy)-4-hydroxy-6-methyloxan-2-yl]oxy}carbonyl)-4-formyl-8-hydroxy-4,6a,6b,11,11,14b-hexamethyl-1,2,3,4a,5,6,7,8,9,10,12,12a,14,14a-tetradecahydropicen-3-yl]oxy}-3-hydroxy-5-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-4-[(3,4,5-trihydroxyoxan-2-yl)oxy]oxane-2-carboxylic acid
CAS Registry Number141256-04-4
SMILES
CCC(C)C(CC(O)CC(=O)OC(CC(O)CC(=O)OC1C(C)OC(OC(=O)C23CCC(C)(C)CC2C2=CCC4C5(C)CCC(OC6OC(C(O)C(OC7OCC(O)C(O)C7O)C6OC6OC(CO)C(O)C(O)C6O)C(O)=O)C(C)(C=O)C5CCC4(C)C2(C)CC3O)C(OC2OC(C)C(OC3OCC(O)C(OC4OCC(O)(CO)C4O)C3O)C(O)C2O)C1O)C(C)CC)OC1OC(CO)C(O)C1O
InChI Identifier
InChI=1S/C92H148O46/c1-13-36(3)46(126-54(102)25-41(98)24-47(37(4)14-2)127-80-62(110)58(106)49(30-94)128-80)23-40(97)26-55(103)131-69-39(6)125-82(73(65(69)113)136-79-64(112)60(108)68(38(5)124-79)132-78-67(115)70(45(100)32-122-78)133-84-75(116)91(120,34-96)35-123-84)138-85(119)92-22-21-86(7,8)27-43(92)42-15-16-51-87(9)19-18-53(88(10,33-95)50(87)17-20-89(51,11)90(42,12)28-52(92)101)130-83-74(137-81-63(111)59(107)57(105)48(29-93)129-81)71(66(114)72(135-83)76(117)118)134-77-61(109)56(104)44(99)31-121-77/h15,33,36-41,43-53,56-75,77-84,93-94,96-101,104-116,120H,13-14,16-32,34-35H2,1-12H3,(H,117,118)
InChI KeyDRHZYJAUECRAJM-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as triterpene saponins. These are glycosylated derivatives of triterpene sapogenins. The sapogenin moiety backbone is usually based on the oleanane, ursane, taraxastane, bauerane, lanostane, lupeol, lupane, dammarane, cycloartane, friedelane, hopane, 9b,19-cyclo-lanostane, cycloartane, or cycloartanol skeleton.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassPrenol lipids
Sub ClassTerpene glycosides
Direct ParentTriterpene saponins
Alternative Parents
Substituents
  • Triterpene saponin
  • Triterpenoid
  • Oligosaccharide
  • Steroid
  • Fatty acyl glycoside
  • O-glucuronide
  • 1-o-glucuronide
  • Tetracarboxylic acid or derivatives
  • Glucuronic acid or derivatives
  • Alkyl glycoside
  • Glycosyl compound
  • O-glycosyl compound
  • Fatty alcohol
  • Fatty acid ester
  • Beta-hydroxy acid
  • Fatty acyl
  • Hydroxy acid
  • Pyran
  • Oxane
  • Cyclic alcohol
  • Tetrahydrofuran
  • Tertiary alcohol
  • Secondary alcohol
  • Carboxylic acid ester
  • Polyol
  • Carboxylic acid derivative
  • Carboxylic acid
  • Acetal
  • Oxacycle
  • Organoheterocyclic compound
  • Aldehyde
  • Organooxygen compound
  • Carbonyl group
  • Primary alcohol
  • Hydrocarbon derivative
  • Organic oxygen compound
  • Organic oxide
  • Alcohol
  • Aliphatic heteropolycyclic compound
Molecular FrameworkAliphatic 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
Water Solubility1.78 g/LALOGPS
logP0.72ALOGPS
logP-3.4ChemAxon
logS-3ALOGPS
pKa (Strongest Acidic)3.28ChemAxon
pKa (Strongest Basic)-3.9ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count43ChemAxon
Hydrogen Donor Count23ChemAxon
Polar Surface Area716.78 ŲChemAxon
Rotatable Bond Count38ChemAxon
Refractivity457.2 m³·mol⁻¹ChemAxon
Polarizability204.26 ųChemAxon
Number of Rings13ChemAxon
BioavailabilityNoChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleYesChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DeepCCS[M-2H]-473.55630932474
DeepCCS[M+Na]+447.4830932474

Predicted Kovats Retention Indices

Not Available
Spectra

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - QS 21 10V, Positive-QTOFsplash10-059i-0000151389-85d5b21d1a93b40d046d2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - QS 21 20V, Positive-QTOFsplash10-059i-0202394575-6581fb02ff410c3218d22017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - QS 21 40V, Positive-QTOFsplash10-00du-1643685895-ff6cc3789a39e9eabd722017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - QS 21 10V, Negative-QTOFsplash10-0670-0200310249-5f536718b51d8795bd1f2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - QS 21 20V, Negative-QTOFsplash10-00p0-0700731259-cce7c757830303dbcdee2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - QS 21 40V, Negative-QTOFsplash10-004i-1910420010-9ca104e92974a26780bd2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - QS 21 10V, Negative-QTOFsplash10-052r-1831110197-732b409cff6b8957e0282021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - QS 21 20V, Negative-QTOFsplash10-052r-7910012082-02520c2904a38a3d26d52021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - QS 21 40V, Negative-QTOFsplash10-03dr-3300000935-66068f65355a2e5ef8912021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - QS 21 10V, Positive-QTOFsplash10-000i-0200001296-a1a30099f0539e16fcfc2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - QS 21 20V, Positive-QTOFsplash10-052r-0900002214-5f16e32048e904226ae72021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - QS 21 40V, Positive-QTOFsplash10-0a4r-1800005239-4b887adcbd9e36bc44f52021-09-24Wishart LabView Spectrum

NMR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Predicted 1D NMR13C NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Biological Properties
Cellular Locations
  • Cytoplasm
  • Extracellular
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 IDFDB011640
KNApSAcK IDC00057057
Chemspider IDNot Available
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound72809956
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. Gilewski TA, Ragupathi G, Dickler M, Powell S, Bhuta S, Panageas K, Koganty RR, Chin-Eng J, Hudis C, Norton L, Houghton AN, Livingston PO: Immunization of high-risk breast cancer patients with clustered sTn-KLH conjugate plus the immunologic adjuvant QS-21. Clin Cancer Res. 2007 May 15;13(10):2977-85. [PubMed:17504999 ]
  2. Cox J, Coulter A: Prospects for the development of new vaccine adjuvants. BioDrugs. 1999 Dec;12(6):439-53. [PubMed:18031193 ]
  3. Simons K, Toomre D: Lipid rafts and signal transduction. Nat Rev Mol Cell Biol. 2000 Oct;1(1):31-9. [PubMed:11413487 ]
  4. Watson AD: Thematic review series: systems biology approaches to metabolic and cardiovascular disorders. Lipidomics: a global approach to lipid analysis in biological systems. J Lipid Res. 2006 Oct;47(10):2101-11. Epub 2006 Aug 10. [PubMed:16902246 ]
  5. Sethi JK, Vidal-Puig AJ: Thematic review series: adipocyte biology. Adipose tissue function and plasticity orchestrate nutritional adaptation. J Lipid Res. 2007 Jun;48(6):1253-62. Epub 2007 Mar 20. [PubMed:17374880 ]
  6. Lingwood D, Simons K: Lipid rafts as a membrane-organizing principle. Science. 2010 Jan 1;327(5961):46-50. doi: 10.1126/science.1174621. [PubMed:20044567 ]
  7. (). Yannai, Shmuel. (2004) Dictionary of food compounds with CD-ROM: Additives, flavors, and ingredients. Boca Raton: Chapman & Hall/CRC.. .
  8. Gunstone, Frank D., John L. Harwood, and Albert J. Dijkstra (2007). The lipid handbook with CD-ROM. CRC Press.