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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2012-09-06 15:16:52 UTC
Update Date2023-02-21 17:18:33 UTC
HMDB IDHMDB0015656
Secondary Accession Numbers
  • HMDB15656
Metabolite Identification
Common NameNaphazoline
DescriptionNaphazoline is only found in individuals that have used or taken this drug. It is a rapid acting sympathomimetic vasoconstrictor of occular artierioles. It acts to decrease congestion of the conjunctiva and is found in many over-the-counter eye drops.Naphazoline is a direct acting sympathomimetic drug, which acts on alpha-adrenergic receptors in the arterioles of the nasal mucosa. This activates the adrenal system to yield systemic vasoconstrction. In producing vasoconstriction, the result is a decrease in blood flow in the nasal passages and consequently decreased nasal congestion. The vasoconstriction means that there is less pressure in the capillaries and less water can filter out, thus less discharge is made.
Structure
Data?1676999913
Synonyms
ValueSource
NafazolinKegg
AK CONHMDB
AK-CONHMDB
Akorn brand OF naphazoline hydrochlorideHMDB
Alcon brand 1 OF naphazoline hydrochlorideHMDB
Alcon brand 2 OF naphazoline hydrochlorideHMDB
Alfa, colirioHMDB
Bausch and lomb brand 1 OF naphazoline hydrochlorideHMDB
Ciba vision brand 1 OF naphazoline hydrochlorideHMDB
Febena brand OF naphazoline hydrochlorideHMDB
Hydrochloride, naphazolineHMDB
IdrilHMDB
Iquinosa brand OF naphazoline hydrochlorideHMDB
Naphazoline monohydrochlorideHMDB
Novartis brand 1 OF naphazoline hydrochlorideHMDB
Ross brand OF naphazoline hydrochlorideHMDB
tele StullnHMDB
TeleStullnHMDB
Vasocon regularHMDB
Abbot brand OF naphazoline hydrochlorideHMDB
Ciba vision brand 2 OF naphazoline hydrochlorideHMDB
Clear eyesHMDB
Grin brand OF naphazoline hydrochlorideHMDB
Grin, afazolHMDB
MiraclarHMDB
Monohydrochloride, naphazolineHMDB
Naphazoline hydrochlorideHMDB
Naphazoline nitrateHMDB
Novartis brand 2 OF naphazoline hydrochlorideHMDB
PrivineHMDB
ProculinHMDB
Warner lambert brand OF naphazoline nitrateHMDB
Warner-lambert brand OF naphazoline nitrateHMDB
Winzer brand OF naphazoline hydrochlorideHMDB
Forte, naphconHMDB
Afazol grinHMDB
AlbalonHMDB
Bausch and lomb brand 2 OF naphazoline hydrochlorideHMDB
Chauvin brand OF naphazoline hydrochlorideHMDB
Eyes, clearHMDB
NafazairHMDB
Nitrate, naphazolineHMDB
Optima brand OF naphazoline hydrochlorideHMDB
Pensa, vasoconstrictorHMDB
PrivinHMDB
Stulln brand OF naphazoline hydrochlorideHMDB
tele-StullnHMDB
VasoNitHMDB
VasoclearHMDB
VasoconHMDB
Vasoconstrictor pensaHMDB
AKConHMDB
all ClearHMDB
Allergan brand OF naphazoline hydrochlorideHMDB
Clear, allHMDB
Colirio alfaHMDB
NaphconHMDB
Naphcon forteHMDB
OptazineHMDB
Regular, vasoconHMDB
SiozwoHMDB
Whitehall brand OF naphazoline hydrochlorideHMDB
Chemical FormulaC14H14N2
Average Molecular Weight210.2744
Monoisotopic Molecular Weight210.115698458
IUPAC Name2-(naphthalen-1-ylmethyl)-4,5-dihydro-1H-imidazole
Traditional Namenaphazoline
CAS Registry Number835-31-4
SMILES
C(C1=NCCN1)C1=CC=CC2=CC=CC=C12
InChI Identifier
InChI=1S/C14H14N2/c1-2-7-13-11(4-1)5-3-6-12(13)10-14-15-8-9-16-14/h1-7H,8-10H2,(H,15,16)
InChI KeyCNIIGCLFLJGOGP-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as naphthalenes. Naphthalenes are compounds containing a naphthalene moiety, which consists of two fused benzene rings.
KingdomOrganic compounds
Super ClassBenzenoids
ClassNaphthalenes
Sub ClassNot Available
Direct ParentNaphthalenes
Alternative Parents
Substituents
  • Naphthalene
  • Imidolactam
  • 2-imidazoline
  • Azacycle
  • Organoheterocyclic compound
  • Organic 1,3-dipolar compound
  • Propargyl-type 1,3-dipolar organic compound
  • Carboximidamide
  • Carboxylic acid amidine
  • Amidine
  • Organic nitrogen compound
  • Organopnictogen compound
  • Hydrocarbon derivative
  • Organonitrogen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External DescriptorsNot Available
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
RoleNot 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 Properties

Experimental Collision Cross Sections

Adduct TypeData SourceCCS Value (Å2)Reference
[M+H]+CBM149.630932474
[M+H]+Not Available148.543http://allccs.zhulab.cn/database/detail?ID=AllCCS00000737
Predicted Molecular Properties
PropertyValueSource
Water Solubility0.038 g/LALOGPS
logP3.44ALOGPS
logP2.19ChemAxon
logS-3.7ALOGPS
pKa (Strongest Basic)10.19ChemAxon
Physiological Charge1ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area24.39 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity65.52 m³·mol⁻¹ChemAxon
Polarizability23.77 ųChemAxon
Number of Rings3ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DarkChem[M+H]+148.74931661259
DarkChem[M-H]-148.66931661259
DeepCCS[M-2H]-176.21130932474
DeepCCS[M+Na]+150.81930932474
AllCCS[M+H]+148.032859911
AllCCS[M+H-H2O]+143.832859911
AllCCS[M+NH4]+152.032859911
AllCCS[M+Na]+153.132859911
AllCCS[M-H]-153.532859911
AllCCS[M+Na-2H]-153.332859911
AllCCS[M+HCOO]-153.132859911

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, 2022.3.3 minutes32390414
Predicted by Siyang on May 30, 202211.3547 minutes33406817
Predicted by Siyang using ReTip algorithm on June 8, 20222.9 minutes32390414
AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid44.1 seconds40023050
Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid1320.5 seconds40023050
Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid322.2 seconds40023050
Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid151.6 seconds40023050
Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid186.4 seconds40023050
RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid89.3 seconds40023050
Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid433.2 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 Acid356.2 seconds40023050
HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate)188.7 seconds40023050
UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid736.1 seconds40023050
BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid438.7 seconds40023050
UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid1348.8 seconds40023050
SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid249.3 seconds40023050
RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid308.1 seconds40023050
MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate341.2 seconds40023050
KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA206.7 seconds40023050
Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water8.0 seconds40023050

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
NaphazolineC(C1=NCCN1)C1=CC=CC2=CC=CC=C123142.5Standard polar33892256
NaphazolineC(C1=NCCN1)C1=CC=CC2=CC=CC=C122042.2Standard non polar33892256
NaphazolineC(C1=NCCN1)C1=CC=CC2=CC=CC=C122151.2Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Naphazoline,1TMS,isomer #1C[Si](C)(C)N1CCN=C1CC1=CC=CC2=CC=CC=C122268.6Semi standard non polar33892256
Naphazoline,1TMS,isomer #1C[Si](C)(C)N1CCN=C1CC1=CC=CC2=CC=CC=C122194.1Standard non polar33892256
Naphazoline,1TMS,isomer #1C[Si](C)(C)N1CCN=C1CC1=CC=CC2=CC=CC=C123162.5Standard polar33892256
Naphazoline,1TBDMS,isomer #1CC(C)(C)[Si](C)(C)N1CCN=C1CC1=CC=CC2=CC=CC=C122528.5Semi standard non polar33892256
Naphazoline,1TBDMS,isomer #1CC(C)(C)[Si](C)(C)N1CCN=C1CC1=CC=CC2=CC=CC=C122427.6Standard non polar33892256
Naphazoline,1TBDMS,isomer #1CC(C)(C)[Si](C)(C)N1CCN=C1CC1=CC=CC2=CC=CC=C123269.2Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Naphazoline GC-MS (Non-derivatized) - 70eV, Positivesplash10-0006-2900000000-026b23156746d2a4a1de2017-08-28Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Naphazoline GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Naphazoline GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental LC-MS/MSLC-MS/MS Spectrum - Naphazoline , positive-QTOFsplash10-03di-0390000000-bf587920984867425a822017-09-14HMDB team, MONAView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Naphazoline 10V, Positive-QTOFsplash10-03di-0090000000-0076ea45eaeedc60e1fb2017-07-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Naphazoline 20V, Positive-QTOFsplash10-03di-1490000000-9be572c365d8869eec532017-07-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Naphazoline 40V, Positive-QTOFsplash10-0006-5900000000-b07ec5aa4378446ddd212017-07-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Naphazoline 10V, Negative-QTOFsplash10-0a4i-0090000000-af432db2e56a6f9aed8d2017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Naphazoline 20V, Negative-QTOFsplash10-0a4i-1290000000-46d4b9b044e895d92e642017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Naphazoline 40V, Negative-QTOFsplash10-00ou-1900000000-8c83d33771f2cc0326692017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Naphazoline 10V, Positive-QTOFsplash10-03di-0090000000-c9f6494c894621a7d1c02021-10-11Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Naphazoline 20V, Positive-QTOFsplash10-03di-0290000000-2bb6cd3f38dcc7776ea42021-10-11Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Naphazoline 40V, Positive-QTOFsplash10-002f-0900000000-445b3b85168db2851c1a2021-10-11Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Naphazoline 10V, Negative-QTOFsplash10-0a4i-0090000000-e8abc7c84fa2e857c6c92021-10-11Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Naphazoline 20V, Negative-QTOFsplash10-0a6r-0790000000-36be1e66b6c2ccbb24fc2021-10-11Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Naphazoline 40V, Negative-QTOFsplash10-0a6u-1960000000-257acbcbef4f826f56d92021-10-11Wishart 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 Locations
  • Membrane
Biospecimen Locations
  • Blood
  • Urine
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodExpected but not QuantifiedNot QuantifiedNot AvailableNot AvailableTaking drug identified by DrugBank entry DB06711 details
UrineExpected but not QuantifiedNot QuantifiedNot AvailableNot AvailableTaking drug identified by DrugBank entry DB06711 details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDDB06711
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider ID4283
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNaphazoline
METLIN IDNot Available
PubChem Compound4436
PDB IDNot Available
ChEBI ID142468
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 ReferencesNot Available

Enzymes

General function:
Involved in G-protein coupled receptor protein signaling pathway
Specific function:
Alpha-2 adrenergic receptors mediate the catecholamine- induced inhibition of adenylate cyclase through the action of G proteins. The rank order of potency for agonists of this receptor is oxymetazoline > clonidine > epinephrine > norepinephrine > phenylephrine > dopamine > p-synephrine > p-tyramine > serotonin = p-octopamine. For antagonists, the rank order is yohimbine > phentolamine = mianserine > chlorpromazine = spiperone = prazosin > propanolol > alprenolol = pindolol
Gene Name:
ADRA2A
Uniprot ID:
P08913
Molecular weight:
48956.3
References
  1. Piletz JE, Zhu H, Chikkala DN: Comparison of ligand binding affinities at human I1-imidazoline binding sites and the high affinity state of alpha-2 adrenoceptor subtypes. J Pharmacol Exp Ther. 1996 Nov;279(2):694-702. [PubMed:8930173 ]
  2. Fukushima H, Norimoto K, Seki T, Nishiguchi T, Nakamura T, Konobu T, Nishio K, Okuchi K: Acute pulmonary edema associated with naphazoline ingestion. Clin Toxicol (Phila). 2008 Mar;46(3):254-6. [PubMed:17852165 ]
  3. Ogidigben MJ, Chu TC, Potter DE: Naphazoline-induced suppression of aqueous humor pressure and flow: involvement of central and peripheral alpha(2)/I(1) receptors. Exp Eye Res. 2001 Mar;72(3):331-9. [PubMed:11180982 ]
General function:
Involved in G-protein coupled receptor protein signaling pathway
Specific function:
This alpha-adrenergic receptor mediates its action by association with G proteins that activate a phosphatidylinositol- calcium second messenger system. Its effect is mediated by G(q) and G(11) proteins
Gene Name:
ADRA1A
Uniprot ID:
P35348
Molecular weight:
51486.0
References
  1. Bogacka E: [Decongestants in treatment of nasal obstruction]. Otolaryngol Pol. 1999;53(3):347-52. [PubMed:10481510 ]
  2. Leonardi A: Emerging drugs for ocular allergy. Expert Opin Emerg Drugs. 2005 Aug;10(3):505-20. [PubMed:16083326 ]
  3. Piletz JE, Zhu H, Chikkala DN: Comparison of ligand binding affinities at human I1-imidazoline binding sites and the high affinity state of alpha-2 adrenoceptor subtypes. J Pharmacol Exp Ther. 1996 Nov;279(2):694-702. [PubMed:8930173 ]
  4. Hrometz SL, Edelmann SE, McCune DF, Olges JR, Hadley RW, Perez DM, Piascik MT: Expression of multiple alpha1-adrenoceptors on vascular smooth muscle: correlation with the regulation of contraction. J Pharmacol Exp Ther. 1999 Jul;290(1):452-63. [PubMed:10381812 ]
  5. Kai T: [Effects of topical alpha 1- and beta 2-adrenoceptor stimulants on nasal nitric oxide level]. Nihon Jibiinkoka Gakkai Kaiho. 1999 Jul;102(7):898-906. [PubMed:10459292 ]
  6. Ogidigben MJ, Chu TC, Potter DE: Naphazoline-induced suppression of aqueous humor pressure and flow: involvement of central and peripheral alpha(2)/I(1) receptors. Exp Eye Res. 2001 Mar;72(3):331-9. [PubMed:11180982 ]