ContaminantDB: Isoquinoline, 1,2,3,4-tetrahydro-

Identification Taxonomy Biological Properties Physical Properties Toxicity Profile Spectra Concentrations Links References XML

Record Information

Version

1.0

Creation Date

2016-05-19 04:51:53 UTC

Update Date

2026-03-27 01:58:50 UTC

Accession Number

CHEM015476

Identification

Common Name

Isoquinoline, 1,2,3,4-tetrahydro-

Class

Small Molecule

Description

Tetrahydroisoquinoline is a secondary amine with the chemical formula C9H11N.Like other secondary amines, tetrahydroisoquinoline can be oxidized to the corresponding nitrone using hydrogen peroxide, catalyzed by selenium dioxide.The tetrahydroisoquinoline skeleton is commonly encountered in pharmaceutical drugs, notably quaternary ammonium muscle relaxants. Tetrahydroisoquinoline derivatives may be formed in the body as metabolites of some drugs, and this was once thought to be involved in the development of alcoholism.This theory has now been discredited and is no longer generally accepted by the scientific community, but endogenous production of neurotoxic tetrahydroisoquinoline derivatives such as norsalsolinol continue to be investigated as possible causes for some conditions such as Parkinson's disease.{from wiki).

Contaminant Sources

FooDB Chemicals
HPV EPA Chemicals
STOFF IDENT Compounds
ToxCast & Tox21 Chemicals

Contaminant Type

Not Available

Chemical Structure

MOL SDF PDB SMILES InChI

Synonyms

Value	Source
1234-Tetrahydroisoquinoline	ChEMBL, HMDB
1234-tetrahydro-Isoquinoline	ChEMBL, HMDB
Tetrahydroisoquinoline	HMDB, MeSH
1,2,3,4-tetrahydro-2-Azanaphthalene	HMDB, MeSH
1,2,3,4-tetrahydro-2-Isoquinoline	HMDB
1,2,3,4-Tetrahydroleucoline	HMDB
HCL OF 1,2,3,4-Tetrahydroisoquinoline	MeSH, HMDB
3,4-Dihydro-1H-isoquinoline	MeSH

Chemical Formula

C₉H₁₁N

Average Molecular Mass

133.190 g/mol

Monoisotopic Mass

133.089 g/mol

CAS Registry Number

91-21-4

IUPAC Name

1,2,3,4-tetrahydroisoquinoline

Traditional Name

tetrahydroisoquinoline

SMILES

C1CC2=C(CN1)C=CC=C2

InChI Identifier

InChI=1S/C9H11N/c1-2-4-9-7-10-6-5-8(9)3-1/h1-4,10H,5-7H2

InChI Key

UWYZHKAOTLEWKK-UHFFFAOYSA-N

Chemical Taxonomy

Description

belongs to the class of organic compounds known as tetrahydroisoquinolines. These are tetrahydrogenated isoquinoline derivatives.

Kingdom

Organic compounds

Super Class

Organoheterocyclic compounds

Class

Tetrahydroisoquinolines

Sub Class

Not Available

Direct Parent

Tetrahydroisoquinolines

Alternative Parents

Substituents

Tetrahydroisoquinoline
Aralkylamine
Benzenoid
Azacycle
Secondary amine
Secondary aliphatic amine
Organic nitrogen compound
Organopnictogen compound
Hydrocarbon derivative
Organonitrogen compound
Amine
Aromatic heteropolycyclic compound

Molecular Framework

Aromatic heteropolycyclic compounds

External Descriptors

Not Available

Biological Properties

Status

Detected and Not Quantified

Origin

Not Available

Cellular Locations

Not Available

Biofluid Locations

Not Available

Tissue Locations

Not Available

Pathways

Not Available

Applications

Not Available

Biological Roles

Not Available

Chemical Roles

Not Available

Physical Properties

State

Not Available

Appearance

Not Available

Experimental Properties

Property	Value
Melting Point	Not Available
Boiling Point	Not Available
Solubility	Not Available

Predicted Properties

Property	Value	Source
Water Solubility	4.81 g/L	ALOGPS
logP	1.31	ALOGPS
logP	1.57	ChemAxon
logS	-1.4	ALOGPS
pKa (Strongest Basic)	9.36	ChemAxon
Physiological Charge	1	ChemAxon
Hydrogen Acceptor Count	1	ChemAxon
Hydrogen Donor Count	1	ChemAxon
Polar Surface Area	12.03 Å²	ChemAxon
Rotatable Bond Count	0	ChemAxon
Refractivity	42.62 m³·mol⁻¹	ChemAxon
Polarizability	15.33 Å³	ChemAxon
Number of Rings	2	ChemAxon
Bioavailability	1	ChemAxon
Rule of Five	Yes	ChemAxon
Ghose Filter	No	ChemAxon
Veber's Rule	Yes	ChemAxon
MDDR-like Rule	No	ChemAxon

Spectra

Spectrum Type	Description	Splash Key	View
GC-MS	GC-MS Spectrum - EI-B (Non-derivatized)	splash10-001i-7900000000-880ecb945a866c58a869	Spectrum
GC-MS	GC-MS Spectrum - EI-B (Non-derivatized)	splash10-001i-7900000000-880ecb945a866c58a869	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positive	splash10-100r-2900000000-241c80cb6dc81b9b83e0	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positive	Not Available	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Positive	splash10-001i-0900000000-9cda6a8e29a836be071a	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Positive	splash10-00lr-1900000000-0fffb087a6b9e5f092fa	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Positive	splash10-066u-9800000000-ed1397065d659994d996	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Negative	splash10-001i-0900000000-8b124bc9800fbbc9a3c2	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Negative	splash10-001i-0900000000-7c43cb3e6b9cef43d221	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Negative	splash10-0uyi-3900000000-58d4ecc958f729594d6b	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Positive	splash10-001i-1900000000-750b3fc0ed1857cd3d2e	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Positive	splash10-001l-4900000000-c1118a9a9962f041fb34	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Positive	splash10-0006-9100000000-2ee9aad24737bda77796	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Negative	splash10-001i-0900000000-163cef49a8efd2ca85d5	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Negative	splash10-001i-0900000000-7cb157b4702fa57056e6	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Negative	splash10-0ge9-2900000000-53cc67b7ef90d1c880f4	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum

Toxicity Profile

Route of Exposure

Not Available

Mechanism of Toxicity

Not Available

Metabolism

Not Available

Toxicity Values

Not Available

Lethal Dose

Not Available

Carcinogenicity (IARC Classification)

Not Available

Uses/Sources

Not Available

Minimum Risk Level

Not Available

Health Effects

Not Available

Symptoms

Not Available

Treatment

Not Available

Concentrations

Not Available

External Links

DrugBank ID

Not Available

HMDB ID

HMDB0012489

FooDB ID

FDB029096

Phenol Explorer ID

Not Available

KNApSAcK ID

Not Available

BiGG ID

Not Available

BioCyc ID

DIHYDRO-DIOH-BENZOATE

METLIN ID

Not Available

PDB ID

Not Available

Wikipedia Link

Tetrahydroisoquinoline

Chemspider ID

6779

ChEBI ID

114116

PubChem Compound ID

7046

Kegg Compound ID

Not Available

YMDB ID

Not Available

ECMDB ID

Not Available

References

Synthesis Reference

Not Available

MSDS

Not Available

General References

Not Available

Isoquinoline, 1,2,3,4-tetrahydro- (CHEM015476)

Structure for CHEM015476: Isoquinoline, 1,2,3,4-tetrahydro-