Record Information
Version1.0
Creation Date2009-07-21 20:27:59 UTC
Update Date2026-03-31 17:59:37 UTC
Accession NumberCHEM002305
Identification
Common NameMaprotiline
ClassSmall Molecule
DescriptionMaprotiline is a tetracyclic antidepressant with similar pharmacological properties to tricyclic antidepressants (TCAs). Similar to TCAs, maprotiline inhibits neuronal norepinephrine reuptake, possesses some anticholinergic activity, and does not affect monoamine oxidase activity. It differs from TCAs in that it does not appear to block serotonin reuptake. Maprotiline may be used to treat depressive affective disorders, including dysthymic disorder (depressive neurosis) and major depressive disorder. Maprotiline is effective at reducing symptoms of anxiety associated with depression.
Contaminant Sources
  • HMDB Contaminants - Urine
  • STOFF IDENT Compounds
  • T3DB toxins
  • ToxCast & Tox21 Chemicals
Contaminant Type
  • Adrenergic Uptake Inhibitor
  • Amine
  • Antidepressant
  • Antidepressant, Second-Generation
  • Antidepressive Agent
  • Antidepressive Agent, Second-Generation
  • Drug
  • Metabolite
  • Organic Compound
  • Synthetic Compound
Chemical Structure
Thumb
Synonyms
ValueSource
BA-34276HMDB
Declimed brand OF maprotiline hydrochlorideHMDB
DeprileptHMDB
DibencycladineHMDB
Holsten brand OF maprotiline hydrochlorideHMDB
Maprotilin-tevaHMDB
Maprotilin-neuraxpharmHMDB
Mesylate, maprotilineHMDB
Novopharm brand OF maprotiline hydrochlorideHMDB
PsymionHMDB
Neuraxpharm brand OF maprotiline hydrochlorideHMDB
Ratiopharm brand OF maprotiline hydrochlorideHMDB
Maprotilin neuraxpharmHMDB
Maprotilin-ratiopharmHMDB
Maprotiline mesylateHMDB
Novo-maprotilineHMDB
Teva brand OF maprotiline hydrochlorideHMDB
Maprotilin von CTHMDB
Dolorgiet brand OF maprotiline hydrochlorideHMDB
Hexal brand OF maprotiline mesylateHMDB
Hydrochloride, maprotilineHMDB
LudiomilHMDB
Lundbeck brand OF maprotiline hydrochlorideHMDB
MaprotilinHMDB
Maprotilin holstenHMDB
Maprotiline hydrochlorideHMDB
MirpanHMDB
N-Methyl-9,10-ethanoanthracene-9(10H)-propylamineHMDB
CT-Arzneimittel brand OF maprotiline hydrochlorideHMDB
MaproluHMDB
Maprotilin tevaHMDB
Maprotilin ratiopharmHMDB
Novartis brand OF maprotiline hydrochlorideHMDB
Novo maprotilineHMDB
Chemical FormulaC20H23N
Average Molecular Mass277.403 g/mol
Monoisotopic Mass277.183 g/mol
CAS Registry Number10262-69-8
IUPAC Namemethyl(3-{tetracyclo[6.6.2.0²,⁷.0⁹,¹⁴]hexadeca-2,4,6,9,11,13-hexaen-1-yl}propyl)amine
Traditional Namemaprotiline
SMILESCNCCCC12CCC(C3=CC=CC=C13)C1=CC=CC=C21
InChI IdentifierInChI=1S/C20H23N/c1-21-14-6-12-20-13-11-15(16-7-2-4-9-18(16)20)17-8-3-5-10-19(17)20/h2-5,7-10,15,21H,6,11-14H2,1H3
InChI KeyQSLMDECMDJKHMQ-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as anthracenes. These are organic compounds containing a system of three linearly fused benzene rings.
KingdomOrganic compounds
Super ClassBenzenoids
ClassAnthracenes
Sub ClassNot Available
Direct ParentAnthracenes
Alternative Parents
Substituents
  • Anthracene
  • Tetralin
  • Aralkylamine
  • Secondary amine
  • Secondary aliphatic amine
  • Organic nitrogen compound
  • Organopnictogen compound
  • Hydrocarbon derivative
  • Organonitrogen compound
  • Amine
  • Aromatic homopolycyclic compound
Molecular FrameworkAromatic homopolycyclic compounds
External Descriptors
Biological Properties
StatusDetected and Not Quantified
OriginExogenous
Cellular Locations
  • Extracellular
  • Membrane
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
ApplicationsNot Available
Biological RolesNot Available
Chemical RolesNot Available
Physical Properties
StateSolid
AppearanceWhite powder.
Experimental Properties
PropertyValue
Melting Point93°C
Boiling PointNot Available
SolubilitySlightly soluble
Predicted Properties
PropertyValueSource
Water Solubility0.00015 g/LALOGPS
logP4.89ALOGPS
logP4.37ChemAxon
logS-6.3ALOGPS
pKa (Strongest Basic)10.54ChemAxon
Physiological Charge1ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area12.03 ŲChemAxon
Rotatable Bond Count4ChemAxon
Refractivity99.3 m³·mol⁻¹ChemAxon
Polarizability33.57 ųChemAxon
Number of Rings4ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-0a4l-6090000000-8e89e932860e4ee6b072Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableSpectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , positivesplash10-004i-0090000000-7a66545f7844123eba51Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , positivesplash10-0fb9-0090000000-c3b045151955339e59ccSpectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , positivesplash10-0gb9-0590000000-bfeab480527e9e5cb70aSpectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , positivesplash10-0006-0930000000-406a233a8ad8a3b5d463Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , positivesplash10-002f-0920000000-d86cbfa85ef229dfed53Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QFT , positivesplash10-004i-0090000000-1a2bf3822fc21e2f8460Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QFT , positivesplash10-0fb9-0190000000-cf4d09e63ae607c3f690Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QFT , positivesplash10-0gb9-1690000000-32657b0912154e5e6eb5Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QFT , positivesplash10-00kf-1940000000-176ec01fb7ad9b4a11caSpectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QFT , positivesplash10-0006-1920000000-a721293bed4aff937490Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QFT , positivesplash10-0006-1910000000-f2d680cb6b1ab57df4bdSpectrum
LC-MS/MSLC-MS/MS Spectrum - , positivesplash10-004i-0390000000-ae291d01fb28cc38d1deSpectrum
LC-MS/MSLC-MS/MS Spectrum - 40V, Positivesplash10-002f-0930000000-1eb22c7693a749dd6c69Spectrum
LC-MS/MSLC-MS/MS Spectrum - 20V, Positivesplash10-0fb9-0090000000-23fddbd27ba3e5e42a21Spectrum
LC-MS/MSLC-MS/MS Spectrum - 10V, Positivesplash10-004i-0090000000-130477a21813cdfe3871Spectrum
LC-MS/MSLC-MS/MS Spectrum - 50V, Positivesplash10-002f-0920000000-dfc6b18aea4d0a6e7eb5Spectrum
LC-MS/MSLC-MS/MS Spectrum - 35V, Positivesplash10-0gdl-0790000000-1b7b6a0fb83ed782ad78Spectrum
LC-MS/MSLC-MS/MS Spectrum - 20V, Positivesplash10-0fb9-0090000000-c978fa61248cd5a77295Spectrum
LC-MS/MSLC-MS/MS Spectrum - 15V, Positivesplash10-004i-0090000000-d428ee7275d47b035da3Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-004j-0090000000-7ae10ab99fb7f49ffa27Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-002b-1090000000-2d55de2a427af756ca33Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0a4i-3090000000-5aed5f1d5ab04a0db509Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-004i-0090000000-067ee24bd068071dfb49Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-004i-1090000000-75ab50229f1a5d9f943aSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a5a-4090000000-5c180e3dc53a4a98eb97Spectrum
MSMass Spectrum (Electron Ionization)splash10-0f6x-9560000000-f263c228ecd4df5d7e73Spectrum
Toxicity Profile
Route of ExposureSlowly, but completely absorbed from the GI tract following oral administration.
Mechanism of ToxicityMaprotiline exerts its antidepressant action by inhibition of presynaptic uptake of catecholamines, thereby increasing their concentration at the synaptic clefts of the brain. In single doses, the effect of maprotiline on the EEG revealed a rise in the alpha-wave density, a reduction of the alpha-wave frequency and an increase in the alpha-wave amplitude. However, as with other tricyclic antidepressants, maprotiline lowers the convulsive threshold. Maprotiline acts as an antagonist at central presynaptic α2-adrenergic inhibitory autoreceptors and hetero-receptors, an action that is postulated to result in an increase in central noradrenergic and serotonergic activity. Maprotiline is also a moderate peripheral α1 adrenergic antagonist, which may explain the occasional orthostatic hypotension reported in association with its use. Maprotiline also inhibits the amine transporter, delaying the reuptake of noradrenaline and norepinephrine. Lastly, maprotiline is a strong inhibitor of the histamine H1 receptor, which explains its sedative actions.
MetabolismHepatic. Maprotiline is metabolized by N-demethylation, deamination, aliphatic and aromatic hydroxylations and by formation of aromatic methoxy derivatives. It is slowly metabolized primarily to desmethylmaprotiline, a pharmacologically active metabolite. Desmethylmaprotiline may undergo further metabolism to maprotiline-N-oxide. Route of Elimination: Approximately 60% of a single orally administered dose is excreted in urine as conjugated metabolites within 21 days; 30% is eliminated in feces. Half Life: Average ~ 51 hours (range: 27-58 hours)
Toxicity ValuesLD50: 900 mg/kg (Oral, Rat) (1) LD50: 90 mg/kg (Oral, Human) (1)
Lethal DoseNot Available
Carcinogenicity (IARC Classification)No indication of carcinogenicity to humans (not listed by IARC).
Uses/SourcesFor treatment of depression, including the depressed phase of bipolar depression, psychotic depression, and involutional melancholia, and may also be helpful in treating certain patients suffering severe depressive neurosis.
Minimum Risk LevelNot Available
Health EffectsNot Available
SymptomsSigns of overdose include motor unrest, muscular twitching and rigidity, tremor, ataxia, convulsions, hyperpyrexia, vertigo, mydriasis, vomiting, cyanosis, hypotension, shock, tachycardia, cardiac arrhythmias, impaired cardiac conduction, respiratory depression, and disturbances of consciousness up to deep coma.
TreatmentNot Available
Concentrations
Not Available
DrugBank IDDB00934
HMDB IDHMDB0015069
FooDB IDNot Available
Phenol Explorer IDNot Available
KNApSAcK IDNot Available
BiGG IDNot Available
BioCyc IDNot Available
METLIN IDNot Available
PDB IDNot Available
Wikipedia LinkMaprotiline
Chemspider ID3871
ChEBI ID127713
PubChem Compound ID4011
Kegg Compound IDC07107
YMDB IDNot Available
ECMDB IDNot Available
References
Synthesis ReferenceNot Available
MSDSLink
General ReferencesNot Available