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Record Information
Version5.0
StatusDetected and Quantified
Creation Date2006-08-13 02:05:27 UTC
Update Date2023-02-21 17:16:45 UTC
HMDB IDHMDB0003626
Secondary Accession Numbers
  • HMDB03626
Metabolite Identification
Common Name(R)-N-Methylsalsolinol
Description1(R),2(N)-dimethyl-6,7-dihydroxy-1,2,3,4-tetrahydroisoquinoline [N-methyl-(R)salsolinol, NM(R)Sal] is the most potent toxin among isoquinolines. Endogenous isoquinolines with and without catechol structure have been proposed to be neurotoxins specific for dopamine neurons. (PMID 9085193 ). (R)salsolinol N-methyltransferase synthesizes N-methyl(R)salsolinol, which is further oxidized into 1,2-dimethyl-6,7-dihydroxyisoquinolinium ion by non-enzymatic and enzymatic oxidation. (PMID 14697894 ). Dopamine-derived N-methyl(R)salsolinol is an endogenous MPTP-like neurotoxin to cause Parkinson's disease. In the cerebrospinal fluid from newly diagnosed untreated patients with Parkinson's disease, the level of this toxin was found to increase significantly, compared to control and a disease control, multiple system atrophy. L-DOPA therapy did not seem to affect the level of this toxin. The results suggest that N-methyl(R)salsolinol level in the cerebrospinal fluid may indicate remaining dopamine neurons in the parkinsonian brain. (PMID 10076861 ). N-methyl(R)salsolinol (NM(R)Sal) induces apoptosis (but not necrosis) in SH-SY5Y cells, and the apoptotic cascade is initiated by mitochondrial permeability transition and activated by stepwise reactions. (PMID 12200198 ).
Structure
Data?1676999805
Synonyms
ValueSource
N-Methyl-(R)-salsolinolHMDB, MeSH
Salsoline hydrochloride, hydrate (4:4:1)MeSH, HMDB
SalsolineMeSH, HMDB
Salsoline hydrochlorideMeSH, HMDB
(+)-SalsolineMeSH, HMDB
Salsoline (-)-formMeSH, HMDB
D-SalosineMeSH, HMDB
Salsoline hydrochloride, (R)-isomerMeSH, HMDB
1(R),2(N)-Dimethyl-6,7-dihydroxy-1,2,3,4-tetrahydroisoquinolineMeSH, HMDB
Salsoline hydrochloride, (S)-isomerMeSH, HMDB
(S)-SalsolineMeSH, HMDB
7-O-MethylsalsolinolMeSH, HMDB
MethylsalsolinolMeSH, HMDB
(-)-SalsolineMeSH, HMDB
Chemical FormulaC11H15NO2
Average Molecular Weight193.2423
Monoisotopic Molecular Weight193.110278729
IUPAC Name(1R)-1,2-dimethyl-1,2,3,4-tetrahydroisoquinoline-6,7-diol
Traditional NameN-methyl-(R)-salsolinol
CAS Registry Number53622-84-7
SMILES
C[C@H]1N(C)CCC2=CC(O)=C(O)C=C12
InChI Identifier
InChI=1S/C11H15NO2/c1-7-9-6-11(14)10(13)5-8(9)3-4-12(7)2/h5-7,13-14H,3-4H2,1-2H3/t7-/m1/s1
InChI KeyRKMGOUZXGHZLBJ-SSDOTTSWSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as tetrahydroisoquinolines. These are tetrahydrogenated isoquinoline derivatives.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassTetrahydroisoquinolines
Sub ClassNot Available
Direct ParentTetrahydroisoquinolines
Alternative Parents
Substituents
  • Tetrahydroisoquinoline
  • 1-hydroxy-2-unsubstituted benzenoid
  • Aralkylamine
  • Benzenoid
  • Tertiary aliphatic amine
  • Tertiary amine
  • Azacycle
  • Organic nitrogen compound
  • Organic oxygen compound
  • Organopnictogen compound
  • Hydrocarbon derivative
  • Organooxygen compound
  • Organonitrogen compound
  • Amine
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External DescriptorsNot Available
Ontology
Not AvailableNot Available
Physical Properties
StateSolid
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 Solubility21.9 g/LALOGPS
logP1.23ALOGPS
logP1.59ChemAxon
logS-0.94ALOGPS
pKa (Strongest Acidic)6.92ChemAxon
pKa (Strongest Basic)10.24ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area43.7 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity56.29 m³·mol⁻¹ChemAxon
Polarizability21.35 ųChemAxon
Number of Rings2ChemAxon
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]+144.1431661259
DarkChem[M-H]-142.56631661259
DeepCCS[M-2H]-176.50330932474
DeepCCS[M+Na]+151.08630932474
AllCCS[M+H]+143.232859911
AllCCS[M+H-H2O]+138.932859911
AllCCS[M+NH4]+147.132859911
AllCCS[M+Na]+148.332859911
AllCCS[M-H]-145.932859911
AllCCS[M+Na-2H]-146.432859911
AllCCS[M+HCOO]-147.032859911

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, 2022.1.82 minutes32390414
Predicted by Siyang on May 30, 20228.9495 minutes33406817
Predicted by Siyang using ReTip algorithm on June 8, 20224.37 minutes32390414
AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid137.6 seconds40023050
Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid427.3 seconds40023050
Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid243.7 seconds40023050
Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid93.5 seconds40023050
Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid151.2 seconds40023050
RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid40.5 seconds40023050
Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid279.4 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 Acid270.2 seconds40023050
HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate)687.0 seconds40023050
UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid602.2 seconds40023050
BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid51.7 seconds40023050
UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid684.2 seconds40023050
SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid161.5 seconds40023050
RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid193.3 seconds40023050
MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate631.4 seconds40023050
KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA513.9 seconds40023050
Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water189.9 seconds40023050

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
(R)-N-MethylsalsolinolC[C@H]1N(C)CCC2=CC(O)=C(O)C=C122770.1Standard polar33892256
(R)-N-MethylsalsolinolC[C@H]1N(C)CCC2=CC(O)=C(O)C=C121747.2Standard non polar33892256
(R)-N-MethylsalsolinolC[C@H]1N(C)CCC2=CC(O)=C(O)C=C121889.3Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
(R)-N-Methylsalsolinol,1TMS,isomer #1C[C@@H]1C2=CC(O)=C(O[Si](C)(C)C)C=C2CCN1C1841.7Semi standard non polar33892256
(R)-N-Methylsalsolinol,1TMS,isomer #2C[C@@H]1C2=CC(O[Si](C)(C)C)=C(O)C=C2CCN1C1831.1Semi standard non polar33892256
(R)-N-Methylsalsolinol,2TMS,isomer #1C[C@@H]1C2=CC(O[Si](C)(C)C)=C(O[Si](C)(C)C)C=C2CCN1C1860.0Semi standard non polar33892256
(R)-N-Methylsalsolinol,1TBDMS,isomer #1C[C@@H]1C2=CC(O)=C(O[Si](C)(C)C(C)(C)C)C=C2CCN1C2114.7Semi standard non polar33892256
(R)-N-Methylsalsolinol,1TBDMS,isomer #2C[C@@H]1C2=CC(O[Si](C)(C)C(C)(C)C)=C(O)C=C2CCN1C2108.1Semi standard non polar33892256
(R)-N-Methylsalsolinol,2TBDMS,isomer #1C[C@@H]1C2=CC(O[Si](C)(C)C(C)(C)C)=C(O[Si](C)(C)C(C)(C)C)C=C2CCN1C2338.4Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - (R)-N-Methylsalsolinol GC-MS (Non-derivatized) - 70eV, Positivesplash10-004i-0900000000-ce38275a97947ad0c2072017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - (R)-N-Methylsalsolinol GC-MS (2 TMS) - 70eV, Positivesplash10-00di-2294000000-e81b4cd0f6a60cdbf2892017-10-06Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - (R)-N-Methylsalsolinol 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 - (R)-N-Methylsalsolinol 10V, Positive-QTOFsplash10-0006-0900000000-630f003fbd29862656db2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - (R)-N-Methylsalsolinol 20V, Positive-QTOFsplash10-0006-0900000000-2332ab63301661d2ad8b2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - (R)-N-Methylsalsolinol 40V, Positive-QTOFsplash10-007a-3900000000-829765b96f19c1734e8f2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - (R)-N-Methylsalsolinol 10V, Negative-QTOFsplash10-0006-0900000000-550798399b578a198d462017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - (R)-N-Methylsalsolinol 20V, Negative-QTOFsplash10-0006-0900000000-6c3f6aefc7671bf92e4b2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - (R)-N-Methylsalsolinol 40V, Negative-QTOFsplash10-05di-3900000000-8e1121f2eeab5ab9b4ae2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - (R)-N-Methylsalsolinol 10V, Positive-QTOFsplash10-0006-0900000000-093c204a145d72b06e8c2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - (R)-N-Methylsalsolinol 20V, Positive-QTOFsplash10-0006-0900000000-a5e47e491134faa38fe42021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - (R)-N-Methylsalsolinol 40V, Positive-QTOFsplash10-0ab9-5900000000-23e7e3619291802dc08d2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - (R)-N-Methylsalsolinol 10V, Negative-QTOFsplash10-0006-0900000000-5326ed117e0a68853a6c2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - (R)-N-Methylsalsolinol 20V, Negative-QTOFsplash10-0006-0900000000-2db53ba347575442f27d2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - (R)-N-Methylsalsolinol 40V, Negative-QTOFsplash10-001i-1900000000-79f2043772ff521702482021-09-24Wishart LabView Spectrum

NMR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Predicted 1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum

IR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M-H]-)2023-02-03FELIX labView Spectrum
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+H]+)2023-02-03FELIX labView Spectrum
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+Na]+)2023-02-03FELIX labView Spectrum
Biological Properties
Cellular LocationsNot Available
Biospecimen Locations
  • Cerebrospinal Fluid (CSF)
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
Cerebrospinal Fluid (CSF)Detected and Quantified0.005 +/- 0.002 (0.003 - 0.008) uMAdult (>18 years old)Not SpecifiedNormal details
Abnormal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
Cerebrospinal Fluid (CSF)Detected and Quantified0.008 +/- 0.002 (0.006 - 0.01) uMAdult (>18 years old)Not SpecifiedParkinson's disease details
Associated Disorders and Diseases
Disease References
Parkinson's disease
  1. Zhang W, Xie Y, Gu J, Ai S, Wang J, Yamamoto K, Jin L: Liquid chromatography with amperometric detection at a nano crystalline Ce-doped lead dioxide film modified electrode for determination of (R)-Salsolinol, (R)-N-methylsalsolinol and monoamine neurotransmitters in Parkinsonian patients' cerebrospinal fluid. Analyst. 2004 Mar;129(3):229-34. Epub 2004 Feb 6. [PubMed:14978525 ]
Associated OMIM IDs
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB023207
KNApSAcK IDNot Available
Chemspider ID17216233
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound12989303
PDB IDNot Available
ChEBI ID88955
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDMDB00000429
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Maruyama W, Akao Y, Carrillo MC, Kitani K, Youdium MB, Naoi M: Neuroprotection by propargylamines in Parkinson's disease: suppression of apoptosis and induction of prosurvival genes. Neurotoxicol Teratol. 2002 Sep-Oct;24(5):675-82. [PubMed:12200198 ]
  2. Zhang W, Xie Y, Gu J, Ai S, Wang J, Yamamoto K, Jin L: Liquid chromatography with amperometric detection at a nano crystalline Ce-doped lead dioxide film modified electrode for determination of (R)-Salsolinol, (R)-N-methylsalsolinol and monoamine neurotransmitters in Parkinsonian patients' cerebrospinal fluid. Analyst. 2004 Mar;129(3):229-34. Epub 2004 Feb 6. [PubMed:14978525 ]
  3. Naoi M, Maruyama W, Nagy GM: Dopamine-derived salsolinol derivatives as endogenous monoamine oxidase inhibitors: occurrence, metabolism and function in human brains. Neurotoxicology. 2004 Jan;25(1-2):193-204. [PubMed:14697894 ]
  4. Takahashi T, Maruyama W, Deng Y, Dostert P, Nakahara D, Niwa T, Ohta S, Naoi M: Cytotoxicity of endogenous isoquinolines to human dopaminergic neuroblastoma SH-SY5Y cells. J Neural Transm (Vienna). 1997;104(1):59-66. [PubMed:9085193 ]
  5. Maruyama W, Abe T, Tohgi H, Naoi M: An endogenous MPTP-like dopaminergic neurotoxin, N-methyl(R)salsolinol, in the cerebrospinal fluid decreases with progression of Parkinson's disease. Neurosci Lett. 1999 Feb 26;262(1):13-6. [PubMed:10076861 ]